Ostracoda (Myodocopa) from Anchialine Caves and Ocean Blue Holes Author Kornicker, Louis S. Author Iliffe, Thomas M. Author Harrison-Nelson, Elizabeth text Zootaxa 2007 2007-08-31 1565 1 1 151 https://biotaxa.org/Zootaxa/article/view/zootaxa.1565.1.1 journal article 10.11646/zootaxa.1565.1.1 1175­5334 5095810 A2CDD9CB-CA5E-418B-A471-9EEFDC5CCF16 Deeveya bransoni Kornicker & Palmer 1987 Figs. 27–39 Deeveya bransoni Kornicker & Palmer 1987: 610 , figs. 1–5.— Kornicker et al. 1990: 37 , figs. 22c, 23d,e, 29b, 30.—Kornicker et al. 2002: 12, figs. 7-12, 13a-k. Holotype . USNM 193301 , A- 1 female on slide and in alcohol. Type locality. Evelyn Green’s Blue Hole , South Andros Island , Great Bahama Bank. FIGURE 28. Deeveya bransoni Kornicker & Palmer 1987 , USNM 1021408, adult male: mandible: a, upper lip with right mandible in place; b, proximal tip of left coxa and ends of adjacent central adductor muscles projecting from left side of body, anterior to left, lv. Right mandible: c–e, limb drawn attached to body, lv (nabs); f, tip of coxa, lv; g, basis, lv; h,i, endopod, mv. Left mandible: j, basis and exopod, mv (nabs). Scale equals 0.10 mm ( a,b,d,e,g,j ), 0. 20 mm ( c ), and 0.05 mm ( f,h,i ). Material. Sanctuary Blue Hole, South Andros Island, Sta 99-061: USNM 1021408 , adult male on 4 slides and in alcohol; USNM 1021409–1021411 , 3 A-1 instars on 1 slide and in alcohol; USNM 1021413 , USNM 1022176 , 1 A-2 instar in alcohol; USNM 1021414 , 1 A-3 instar on 2 slides and in alcohol; USNM 1021415 , 1021416 , 2 A-3 instars in alcohol; USNM 1021417 , 1 A-5 instar in alcohol; USNM 1021418 , 1 A-5 instar on 1 slide and in alcohol; USNM 1021419 , 1 adult male in alcohol; USNM 1021420–1021424 , 5 A-1 instars in alcohol; USNM 1021425 , 1 A-4 right valve in alcohol; USNM 1021387 1 adult male in alcohol (shell fragmented and not measured); USNM 1021427–1021429 , 3 adult females in alcohol; USNM 1022177 , 1 adult female in alcohol. Double Drop Blue Hole , South Andros Island : Sta 99-055 : USNM 1021430 , 1 adult female in alcohol; USNM 1021431 , 1 A-2 instar in alcohol (left valve broken); Sta 99-056 : USNM 1021432 , 2 A-2 instars in alcohol; USNM 1021433 , 2 A-1 instars in alcohol. Conch Sound Blue Hole , Andros Island : Sta 00- 023 , USNM 1021434 , 3 specimens in alcohol; USNM 1021435 , 1 specimen in alcohol. Sta 00-023, USNM 1021434 , 3 specimens in alcohol. Sta 00-024, USNM 1021435 , 1 specimen in alcohol. Sta 01-003: USNM 1021437 , 1 A-4 instar; USNM 10214438 , 1 A-5 instar in alcohol; USNM 1021439 , 27 specimens in alcohol. Sta 01-004, USNM 1021440 , 7 specimens in alcohol. Sta 01-012, USNM 1021441 , 8 specimens in alcohol. Distribution. Great Bahama Bank: Andros Island (Evelyn Green’s Blue Hole, Stargate Blue Hole, Sanctuary Blue Hole, Double Drop Blue Hole, Conch Sound Blue Hole). Remarks. Because many appendages of the adult male described in Kornicker et al. (2002: 15) were lost and thus incompletely described, a supplementary description of the adult male is presented herein. Supplementary description of adult male ( Figs. 27–32 ). Carapace similar in shape and ornamentation to that described in Kornicker et al. (2002:15: fig. 7 a–d ) ( Fig. 27 a,b ). Central adductor muscle scars ( Fig. 27 a,b ): With about 9 ovoid scars, 3 indistinctly divided. Carapace size (length, height in mm): USNM 1021403, 2.00, 1.49; USNM 1021419, l.98, 1.38. First antenna: As shown in Figs. 27 c,d (appendage lost). Second antenna ( Fig. 27 e–j ): Protopod with distal lateral spines ( Fig. 27 g ). Endopod 3-segmented ( Fig. 27 f,h,j ): 1st and 2nd segments linear; 1st segment with 2 terminal spinous bristles (proximal a-bristle about one half length of distal b-bristle); 2nd segment with filament-like f-bristle, about one-half length of g-bristle; g-bristle with more-strongly developed rings than f-bristle; both f- and g-bristles with widely separated minute spines and with tapered tips with terminal papilla; 3rd segment small, separated from 2nd segment by suture, with filament-like h-, i-, and j-bristles (each less than one-half length of g-bristle and with tapering tip and terminal papilla) and with minute medial ventral peg and small medial bristle near midwidth ( Fig. 27 f,h,j ). Exopod 9-segmented ( Fig. 27 i ): 1st segment divided into long proximal and short distal parts; distal part with short ringed bristle with short marginal spines ( Fig. 27 i ); bristle of 2nd segment long, with short ventral spines and dorsal natatory hairs; 9th segment with 4 bristles (longest bristle with dorsal spines and distal natatory hairs, next-to-longest bristle with only minute spines; shorter 2 bristles either bare or with minute spines). Fulcrum attached to posterior edge of protopod more strongly sclerotized along dorsal edge ( Fig. 27 e ). Mandible ( Fig. 28 ): Coxa endite with proximal and distal sets of teeth separated by space ( Fig. 28 f ); proximal set comprising 4 stout cusps, and with 2 short, spinous, distal bristles on anterior edge and 1 short, spinous, distal bristle on posterior edge; surface between cusps and anterior and posterior to cusps with abundant slender spines. Stout rounded tooth between proximal and distal sets of teeth, with 2 spinous bristles adjacent to tooth. Distal set of teeth comprising 2 flat teeth; proximal tooth with 5 cusps (posterior cusp stouter); distal tooth with 6 or 7 cusps (middle cusp stouter); 2 spinous bristles present lateral to distal set of teeth. Basis with 2 proximal bristles (1 stout plumose, 1 long, slender, either bare or with short spines), and 2 medial plumose bristles (1 long, 1 short) on short process ( Fig. 28 d, j ). Basis endite ( Fig. 28 g ): anterior margin with single bristle; posterior margin with proximal hairs, and 1 short bristle proximal to 1 short distal tubular bristle; medial side with few rows of long hairs near midlength and also just proximal to terminal cusps; lateral side with 6 slender distal bristles (2 longer than others and entwined with 5 crossings) and 1 short, stout tooth just proximal to distal edge of endite; ventral edge of endite with 6 terminal cusps (5 anterior cusps ser- rate proximally, 1 posterior cusp smaller than others). Endopod 3-segmented ( Fig. 28 e,h,i ): 1st segment with 1 spinous, terminal, dorsal bristle, 1 spinous, distal, ventral bristle, and 4 spinous distal medial bristles (left limb of USNM 1021408 with additional lateral bristle); 2nd segment with 3 spinous, terminal, dorsal bristles (1 claw-like on edge of segment and with distal rings), and 1 spinous, terminal, ventral bristle; 3rd segment hirsute medially and along anterior margin, with 4 medial spinous bristles forming row, and 3 stout terminal bristles (middle bristle longest and with smooth, pointed, slightly recurved tip; posterior bristle with long spines at midlength). Maxilla ( Figs. 29 , 30 ): Endite I with 2 proximal long bristles with long proximal hairs and 10 subterminal and terminal bristles (5 tubular, 5 stout, pointed, with either long hairs, minute spines, or minute teeth) ( Fig. 29 d ); endite II with 2 long proximal bristles with short spines and 11 terminal and subterminal bristles (5 tubular, 6 claw-like with distal marginal teeth) ( Fig. 29 e ); endite III with 1 long proximal bristle with base near basis and with short marginal spines, and 6 terminal bristles (2 tubular, 4 claw-like) ( Fig. 29 f ). Coxa with stout plumose dorsal bristle. Basale with 2 bristles (1 tubular near ventral margin, 1 pointed near dorsal margin, both with minute indistinct marginal spines) ( Fig. 30 ). Endopod ( Fig. 30 ): 1st segment with 11 bristles (3 tubular); 2nd segment with hairs along anterior surface, 2 stout pectinate claws, and 6 tubular bristles (3 medial, 3 lateral). Fifth limb ( Fig. 31 a–c ): Epipod with bristles forming 3 groups: ventral group with 5 bristles; middle group with 6 bristles; dorsal group fragmented on specimen (with at least 3 bristles). Protopod with internal glandular field. Precoxa and coxa with total of 29 claws and bristles. Basis with 10 bristles. Exopod represented by 2 bristles (1 long bare, 1 short spinous). Endopod: 1st segment with 5 bristles (4 ventral, 1 dorsal); 2nd segment with 2 stout claw-like bristles and 2 slender bristles. Sixth limb ( Fig. 31 d ): Epipod with bristles forming 3 groups (ventral group with 5 long setose bristles; middle group with 6 long setose bristles; dorsal group with 7 setose bristles (6 long, 1 short dorsal). Precoxa and coxa with total of 8 bristles. Basis with 1 lateral and 6 ventral or medial bristles. Exopod well-developed, with 4 long bristles (1 bare, 3 with long marginal hairs). Endopod: 1st segment with 6 bristles on or near ventral margin; 2nd segment with 3 bristles (2 ventral, 1 dorsal); 3rd segment with 2 stout claw-like pectinate bristles and 2 slender bristles (1 long, ventral, 1 short, medial). Seventh limb ( Fig. 31 e ): Limb with 3 terminal bristles (1 long, 2 shorter). Furca ( Figs. 31 f , 32 c ): Each lamella with 7 claws (claw 4 slight smaller than claw 3); claws 1–4 with teeth along posterior margin; claws 5–7 with teeth along both margins. Small glandular peg present between claws 1 and 2. Apron bearing muscle present dorsal to anterior edge of lamellae; 2 lobes without internal muscles present between apron and lamellae ( Fig. 32 c ): Lamellae followed by unpaired spinous bristle about same length as claw 3. Bellonci Organ ( Fig. 27 c ): Well developed, bifurcate at midlength, with each branch tapering to point. Lips : Upper lip as shown in Figs. 28 a , 32 a,b . Lower lip a beak-shaped process on each side of mouth ( Fig. 32 b ). Copulatory organ ( Fig. 32 c–g ): Similar to that illustrated in Kornicker et al. (2002: fig. 8g –j) in having 2 tubular processes at tip of anterior branch, but some variability observed in shape and distribution of minute teeth on large flat tooth ( Fig. 32 d,e,g ). Posterior of body ( Fig. 32 c ): Unsegmented; posterodorsal edge of posterior of specimen with fringe and small spine, but both could be debris. Remarks. The third segment of the first antenna of the adult male described herein ( Fig. 27 c ) is more elongate than the third segment of the A- 1 female illustrated by Kornicker et al. (1990 : fig. 22c). Supplementary description of adult female ( Figs. 33 a–d , 39 f ). Carapace shape similar to that of adult female illustrated in Kornicker et al. (2002: fig. 10a) ( Fig. 33 a–d ). Ornamentation similar to that of adult male ( Fig. 39 f ). Central adductor muscle attachments ( Fig. 33 a,b ): Consisting of about 12 ovoid scars. FIGURE 29. Deeveya bransoni Kornicker & Palmer 1987 , USNM 1021408, adult male: maxilla: right limb: a, complete limb drawn attached to body, lv; b, limb free on slide, mv (nabs). Left limb: c, limb free on slide, lv (nabs); d–f, endites I, II, and III, mv. Scale equals 0.10 mm ( a–c) and 0.02 mm ( d–f ). Carapace size (length, height in mm): USNM 1021430, 2.04, 1.56; USNM 1022177, 2.07, 1.57; USNM 1021427, 1.95, 1.44; USNM 1021428, 2.07, 1.44; USNM 1021429, 2.01, 1.36. Furca: Each lamella with 7 claws. Lamellae followed by unpaired bristle. Supplementary description of A-1 instar (sex not determined unless noted). Carapace shape and ornamentation ( Fig. 39 e ): Similar to that of adult male. Carapace size (length, height in mm): USNM 1021409 , female, 1.59, 1.17; USNM 1021410 , female, 1.49, 1.16; USNM 1021411 , male, 1.59, 1.18; USNM 1021420 , male, 1.53, 1.20; USNM 1021421 , 1.58 , 1.16 ; USNM 1021422 , 1.61 , 1.22 ; USNM 1021423 , 1.65 , 1.19 ; USNM 1021424 , 1.57 , 1.12 ; USNM 1021433 , 2 specimens : 1.62, 1.22; 1.59, 1.19. Furca. Each lamella with 7 claws. Lamellae followed by unpaired bristle. FIGURE 30. Deeveya bransoni Kornicker & Palmer 1987 , USNM 1021408, adult male: left maxilla, mv of endopod (nabs), drawn under cover slip. Scale equals 0.05. Supplementary description of A-2 instar (sex not determined). Carapace similar in shape and ornamentation ( Fig. 39 d ) to that of adult male. Carapace size (length, height in mm): USNM 1021413 , 1.20 , 0.92; USNM 1021431 , 1.17 , 0.92; USNM 1022178 , 2 specimens : 1.21, 0.90; 1.17, 0.90. Second antenna: 9th exopod segment with 4 bristles. Maxilla: 2nd endopod segment with 2 claws and 4 bristles. Sixth limb: Precoxa and Coxa with 5 bristles. Basis with 6 bristles. Furca: Each lamella with 6 claws followed by small triangular process with pointed or bifid tip (incipient 7th claw). Lamellae followed by unpaired bristle. Description of A-3 instar (sex unknown) ( Figs. 33 e–p , 34 , 39 c ). Carapace similar in shape and ornamentation to that of adult male ( Figs. 33 e , 39 c ). Carapace size (length, height in mm): USNM 1021414, 0.94, 0.72; USNM 1021415, 0.90, 0.72; USNM 1021416, 0.91, 0.71. First antenna ( Fig. 33 f–h ): Differs from A-2 instar mainly in having short ventral bristle on 5th segment (just reaching 8th segment), and short b-bristle on 7th segment (about same length as combined lengths of segments 6 and 7). Also, suture separating 3rd and 4th segments only weakly developed. c-bristle slightly shorter than e-bristle; e-bristle long, ringed, and with widely separated marginal spines; d-, f-, and g-bristles filament-like, about ½ length of e-bristle. Second antenna ( Fig. 33 i ): Endopod differs from A-2 instar in having only 1 dorsal bristle on 1st segment. 9th exopod segment with 3 bristles (1 long, 1 medium, 1 short). FIGURE 31. Deeveya bransoni Kornicker & Palmer 1987 , USNM 1021408, adult male: fifth limb: a, epipod left limb drawn on body, lv (nabs); b, left limb loose on slide, mv (nabs); c, right limb attached to body, lv (nabs). d, left sixth limb loose on slide, mv; e, left seventh limb; f, left lamella of furca projecting from shell, lv. Scale equals 0.10 mm ( a–f ). FIGURE 32. Deeveya bransoni Kornicker & Palmer 1987 , USNM 1021408, adult male: a, anterior of body and upper lip from right side; b, anterior of body, upper lip, and lower lip from left side; c, posterior of body from left side; d, detail from “c”. USNM 1021409, adult male, copulatory limb: e, tip of anterior branch from right side; f, tip of posterior branch. USNM 1021426, adult male: g, copulatory limb, tip of anterior branch. Scale equals 0.10 mm ( a,b,d,g) , 0.20 mm ( c ), and 0.05 mm ( e,f ). Mandible: Coxa similar to that of A-2 instar ( Fig. 33 n ). Basis ( Fig. 33 j,m,o,p ) with only 1 of the 2 entwined lateral distal bristles present on the A-2 instar ( Fig. 33 m ,o ). Endopod ( Fig. 33 k–m,o,p ): 1st segment with 1 dorsal bristle; 2nd segment with 1 ventral and 2 dorsal bristles; 3rd segment with 3 short medial bristles forming row and 3 stout terminal bristles (ventral of these bare or with short spines; middle bristle longest, with smooth, pointed, slightly recurved tip and marginal spines; dorsal bristle straight spinous, with short marginal spines). Maxilla ( Fig. 34 a ): Endite I with 2 proximal and about 7 terminal bristles (2 or 3 tubular); endite II with 1 proximal and about 7 terminal bristles (1 tubular); endite III with 1 proximal and about 5 terminal bristles (1 tubular). Coxa with stout spinous dorsal bristle. Basis with 2 terminal bristles. Endopod: 1st segment with 3 anterior bristles and 3 distal posterior bristles; 2nd segment with hairs along anterior margin, 2 stout, pectinate, terminal claws, and 4 slender tubular bristles. Fifth limb ( Fig. 34 b,c,f,j ): Epipod: dorsal group with 4 long bristles; middle group with 6 long bristles; ventral group with 4 long and 1 short bristle. Precoxa and coxa with 15 bristles. Basis with 5 ventral bristles. Exopod represented by 2 bristles (1 long, bare, 1 short, spinous). Endopod: 1st segment with 2 ventral and 1 dorsal bristle; 2nd segment with 2 long and 2 short bristles. FIGURE 33. Deeveya bransoni Kornicker & Palmer 1987 , USNM 1021430, adult female carapace, length 2.04 mm: a, complete carapace from left side showing adductor muscle attachments (ovals) and typical reticulations; b, detail from a; c, detail of left and right valves showing gland and bristle on right valve; d, detail showing slight concavity on anterior of left valve. USNM 1021414, A-3 instar (sex unknown): e, complete carapace from right side, length 0.72 mm; f, Bellonci Organ and left first antenna drawn on body, lv; g, tip of right first antenna projecting from carapace, lv; h, tip left first antenna, lv; i, endopod of left second antenna, lv; j, tip of basis of right mandible, mv; k, tip of endopod of right mandible, mv; l, tip of endopod of left mandible drawn on body, mv; m, basis and endopod right mandible, lv (nabs); n, tip of coxa of right mandible, lv; o, p, right mandible drawn on body, lv (nabs). Scale equals 0.10 mm ( ab–d,g) , 0.05 mm ( f,i,k– m,o,p ), and 0.02 mm ( h,j,n ). FIGURE 34. Deeveya bransoni Kornicker & Palmer 1987 , USNM 1021414, A-3 instar (sex unknown): a, right maxilla, mv (nabs); b, right fifth limb drawn on body, lv; c, tips of right fifth and sixth limbs drawn on body, lv; d, right sixth limb drawn on body, lv; e, left seventh limb, lv; f, left lamella of furca, lv; g, anterior of body and upper lip; h, lower lip; i, posterior of body showing apron, anus, and left lamella of furca, lv (nabs). USNM 1021430, A-3 instar (sex unknown); j, left fifth limb drawn on body, lv. Scale equals 0.10 mm ( b–d,h) and 0.05 mm ( e–g,i,j ). Sixth limb ( Fig. 34 c,d ): Tip of limb extends well past tip of 5th limb ( Fig. 34 c ). Epipod: dorsal group with 5 long bristles; middle group with 6 long bristles; ventral group with 1 short and 4 long bristles. Precoxa and coxa with 5 ventral bristles. Basis with 4 bristles. Exopod with 4 long bristles. Endopod: 1st and 2nd segments fused, with 2 bristles (1 dorsal, 1 ventral) on 2nd segment; 3rd segment with 2 stout claw-like pectinate bristles and 1 short slender bristle. Seventh limb ( Fig. 34 e ): With 3 terminal bristles (1 long, 2 shorter). Furca ( Fig. 34 f,i ): Each lamella with 5 claws followed by small triangular process with pointed tip (incipient 6th claw). Lamellae followed by unpaired bristle. Small lateral glandular process between claws 1 and 2. Apron similar to that of adult. (On specimen studied apron separated from furca by 2 lobes, 1 on each side of anus ( Fig. 34 i )). FIGURE 35. Deeveya bransoni Kornicker & Palmer 1987 , USNM 1021425, A-4 instar (sex unknown): a, right valve, length 0.73 mm, iv. USNM 1021437, A-4 instar (sex unknown): b, complete specimen from right side, length 0.74 mm; c, anterior of complete specimen from right side; d, right first antenna projecting from carapace, lv; e, exopod left second antenna projecting from carapace, lv (nabs); f, endopod right second antenna, lv; g, basis and endopod right mandible, lv; h, tip coxa right mandible, iv; i, proximal set of teeth of coxa of left mandible, lv; j, distal part basis left mandible, lv. Scale equals 0.10 mm ( c–f), 0.05 mm ( g ) and 0.02 mm ( h–j ). FIGURE 36. Deeveya bransoni Kornicker & Palmer 1987 , USNM 1021437, A-4 instar (sex unknown): a, left maxilla, lv; b, tip right maxilla, mv; c, left fifth limb, mv; d, right sixth limb, mv (nabs); e, right furcal lamella, tips of right mandible, fifth and sixth limbs, lv; f, Bellonci Organ; g, part of body from right side showing lateral eye, coxa of mandible, and protopod of second antenna; h, upper lip and esophagus from right side; i, profile of anterior of body, vv or dv; j, ventral view of anterior of body showing maxillae and lower lip. Scale equals 0.10 mm ( a,e,g,h,j) , 0.05 mm ( b–d,f ) and 0.02 mm ( i ). Bellonci Organ ( Fig. 33 f ): Bifurcate distally, with branches tapering to pointed tip. Lips : Upper lip ( Fig. 34 g ) and lower lip ( Fig. 34 h ), similar to those of later instars and adults. Gut content: Gut filled with unidentified amber-colored particulate matter. Description of A-4 instar (sex unknown) ( Figs. 35 , 36 , 39 b ). Carapace similar in shape to A-3 instar ( Fig. 35 a–c ). Right valve with small projecting glandular process at posterior end of dorsal margin; process with small bristle. Ornamentation ( Figs. 35 c , 37 b ): Surface in transmitted light with bright round spots inside very weakly developed reticulations ( Fig. 39 b ). Smaller round bright spots present between larger bright spots, few bristles along valve margins. The spots form concentric circles on the valve surface. Carapace size (length, height in mm): USNM 1021425, right valve, 0.73, 0.57; USNM 1021437, 0.74, 0.59. First antenna ( Fig. 35 d ): 1st segment with spines in distal ventral corner. 2nd segment with 1 dorsal bristle. 3rd and 4th segments fused but indentation on ventral margin indicates place of separation; 3rd segment with 1 ventral bristle; 4th segment with 1 short dorsal bristle. 5th segment bare or with minute ventral terminal nub. 6th segment bare. 7th segment with short a-bristle and long c-bristle with minute widely separated marginal spines. 8th segment with medium d-bristle, long e-bristle with widely separated minute spines and with terminal papilla, medium g-bristle with terminal papilla, and very short f-bristle. 1st and 2nd segments linear. Second antenna ( Figs. 35 e,f , 36 g ): Exopod with 1st segment not divided into 2 parts, with small terminal ventral bristle. Segments 2 to 8 with long ventral bristle. Segment 9 with 2 bristles (1 medium, 1 small). Endopod: segment 1 with 1 dorsal bristle; segment 2 with short f-bristle and long g-bristle; segment 3 fused to segment 2, with long h-, i-, and j-bristles. Mandible ( Figs. 35 g –j , 36 g ): Coxa endite with proximal and distal sets of teeth separated by space ( Fig. 35 h,i ): proximal set comprising 4 stout cusps and with 2 short spinous bristles (1 on anterior edge, 1 on posterior edge); surface between cusps with abundant slender spines; stout pointed tooth between proximal and distal sets of teeth, with 1 spinous bristle lateral to tooth. Distal set of teeth comprising 2 flat teeth; proximal and distal teeth each with 6 cusps; stout lateral bristle proximal to proximal tooth. Basis with 2 plumose medial bristles near dorsal margin and 1 long slender lateral bristle near endopod ( Fig. 35 g ). Basis endite: left limb ( Fig. 35 j ): anterior margin with single bristle; posterior margin with proximal hairs and 1 short bristle proximal to short distal tubular bristle; lateral side with 3 bristles (1 long posterior to midwidth, 1 long near posterior margin, 1 short proximal and anterior to long bristles; none entwined); ventral edge of endite with 6 cusps; single lateral tooth near distal edge of endite. Right limb (probably aberrant) ( Fig. 35 g ): differs from left limb in having basis endite with only 4 terminal teeth and no distal lateral tooth). Endopod with 3 segments ( Fig. 35 g ): 1st segment with 1 dorsal terminal bristle; 2nd segment with 2 dorsal terminal bristles (1 claw-like); 3rd segment hirsute medially and along anterior margin, with 1 medial bristle and 3 terminal bristles. Maxilla ( Fig. 36 a,b,j ): Endite I with 2 proximal and 5 terminal bristles (1 tubular); endite II with 1 proximal and 4 or 5 terminal bristles (2 tubular); endite III with 1 proximal and 4 terminal bristles (1 tubular). Coxa with 1 plumose dorsal bristle. Basis with 1 ventral bristle and 1 bristle at midwidth. Endopod with 2 segments: 1st segment with 2 anterior and 1 posterior bristle. 2nd segment with 2 claw-like bristles and 3 slender bristles; ventral edge of segment bare or with spines. Fifth limb ( Fig. 36 c,e ): Epipod with plumose bristles forming 3 groups: 4 bristles in dorsal group and 6 in middle group; ventral group fragmented, with 2 bristles on remaining part. Precoxa and coxa with total of 11 bristles and claws (2 bristles tubular, 1 claw short tooth-like). Basis with 4 bristles. Exopod represented by 2 long bristles (1 bare, 1 plumose). Endopod with 2 segments: 1st segment with 2 distal ventral bristles; 2nd segment with 2 slender claw-like bristles and 1 short slender bristle. Sixth limb ( Fig. 36 d,e ): Epipod with plumose bristles forming 3 groups: 4 bristles in dorsal and middle groups, 5 in ventral group (ventral bristle short). Precoxa and coxa fragmented during dissection; no bristles observed prior to dissection [instar A-4 of D. jillae bears 1 bristle ( Kornicker & Iliffe 1985 : Fig. 15h )]. Basis without bristles. Exopod represented by small lobe with 3 long bristles (inner bristle plumose, others bare). Endopod with 2 segments: 1st segment bare; 2nd segment with 2 terminal bristles. Terminal segment not extending past distal segment of 5th limb ( Fig. 36 e ). Sutures between segments indistinct. Seventh limb: Absent. Furca ( Fig. 36 e ): Each lamella with 4 claws followed by small triangular process fused to lamella. Claws separated from lamella by suture. Small projecting lateral glandular process present midway between claws 1 and 2. Unpaired lateral bristle present posterior to lamellae. Bellonci Organ ( Fig. 36 f ): Well developed, bifurcate distally, branches taper to point. FIGURE 37. Deeveya bransoni Kornicker & Palmer 1987 , USNM 1021418, A-5 instar (sex unknown): a, right valve, length 0.57 mm, ov; b, detail of surface, from “a”; c, left valve, iv; d, right first antenna and Bellonci Organ, lv; e, part right second antenna, lv; f, part right second antenna showing posterior pivot sclerite, lv; g, endopod right second antenna, lv. Mandible: h, right limb drawn attached to body, lv; i, tip of coxa of right limb, lv; j, tip of coxa of left limb, lv; k, basis and first article of endopod of left limb, lv; l, endopod of left limb, lv. Scale equals 0.05 mm ( b,d–h ) and 0.02 mm ( i–l ). Lips : Upper lip ( Fig. 36 h,i ) and lower lip ( Fig. 36 j ), in general, similar to those of A-3 instar. Dorsal end of esophagus with transparent flap-like structures ( Fig. 36 h ). Brown Organ ( Fig. 36 g ): With 4 ovoid cells. Gut content: Unidentified matter, somewhat stringy. FIGURE 38. Deeveya bransoni Kornicker & Palmer 1987 , USNM 1021418, A-5 instar (sex unknown): a, part left maxilla, mv; b, endites I, II, and III of left maxilla; c, distal part left fifth limb, lv; d, right fifth limb, mv; e, right fifth limb drawn attached to body, lv; f, right lamella of furca, lv; h, esophagus and mouth are below bottom end of illustration; i, anterior of body and upper and lower lips from right side; j, ventral view of upper lip (mouth beneath lip dashed). USNM 1021417, A-5 instar (sex unknown): k, ventral view of part of right body showing location of upper lip, right mandible and right maxilla. Scale equals 0.02 mm ( a–d,g,h) , 0.05 mm ( e,f,i,j ) and 0.10 mm ( k ). FIGURE 39. Deeveya bransoni Kornicker & Palmer 1987 , polygons and disks forming surface structures on carapace: a, USNM 1021418, A-5; b, USNM 1021437, A-4; c, USNM 1021414, A-3; d, USNM 1021431, A-2; e, USNM 1021410, A-1, female; f, USNM 1021430, adult female. Scale equals 0.05 mm ( a–f ). Description of A-5 instar (sex unknown) ( Figs. 37–39 a ). Carapace similar in shape to that of A-3 instar ( Fig. 37 a,c ). Ornamentation ( Figs. 37 a,b , 39 a ): Valve viewed in transmitted light with closely spaced large round bright spots appearing inside very weakly developed reticulations ( Fig. 39 a ). Few single bristles along valve edge. Infold ( Fig. 37 c ): Broad transparent infold along anterior, ventral, and posterior margins. Carapace size (length, height in mm): USNM 1021418, 0.57, 0.44; USNM 1021417, 0.59, 0.49; USNM 1021438, 0.56, 0.46. First antenna ( Fig. 37 d ): Differs from A-3 instar in having 3rd and 4th segments fused (without suture separating them), and in lacking a dorsal bristle on the 2nd segment, a ventral bristle on the 3rd segment, a dorsal bristle on the 4th segment, a ventral bristle on the 5th segment, a- and b-bristles on the 7th segment, and an f-bristle on the 8th segment. Also, the c-bristle of the 7th segment is much shorter. Second antenna ( Fig. 37 e–g ): Endopod differs from A-3 instar in lacking an f-bristle on the 2nd segment ( Fig. 37 g ). Exopod: 1st segment not divided into two parts, and without short terminal bristle present on A-4 instar ( Fig. 37 e ). 9th segment with 2 bristles (1 medium, 1 short). Posterior edge of protopod with slender sclerite ( Fig. 37 f ). Mandible ( Fig. 37 h–l ): Coxa endite ( Fig. 37i, j ): proximal set of teeth similar to that of A-3 instar. Stout tooth between proximal and distal sets of teeth and 1 or 2 bristles adjacent to tooth. Distal set of teeth comprising 2 flat teeth (proximal set with 7 cusps; distal set with fewer cusps (exact number of teeth present obscured); 1 bristle present lateral to proximal set of teeth. Basis with long slender bristle near insertion of endopod and 2 plumose bristles near dorsal margin ( Fig. 37 h,k ). Basis endite ( Fig. 37 k ): anterior margin with single bristle; posterior margin with proximal hairs, 1 short proximal bristle, and 1 short distal tubular bristle; lateral side with 2 slender bristles; bristles entwined on adult absent; ventral edge of endite with 5 terminal cusps, and without short stout lateral tooth proximal to distal edge. Endopod 3-segmented ( Fig. 37 l ): 1st segment with 1 terminal dorsal bristle and without medial bristles; 2nd segment with 2 terminal dorsal bristles (1 claw-like); 3rd segment hirsute medially and along anterior margin, with 1 medial bristle and 3 terminal bristles. Maxilla ( Fig. 38 a,b,k ): Endite I with 2 proximal bristles and about 5 terminal bristles; endite II with 1 proximal and 4 or 5 terminal bristles; endite III with 1 long proximal bristle and about 5 terminal bristles (some endite bristles tubular) ( Fig. 38 b ). Coxa with stout plumose dorsal bristle. Basis with 2 terminal bristles. Endopod ( Fig. 38 a ): 1st segment with 2 bristles (1 anterior, 1 tubular); 2nd segment with 2 stout pectinate claws and 3 tubular bristles; anterior edge of segment bare. Fifth limb ( Fig. 38 c–e ): Epipod: dorsal group with 4 long bristles; middle group with 5 or 6 long bristles; ventral group with 5 bristles (ventral of these shorter). Precoxa and coxa with long hairs and 9 bristles. Basis with 3 bristles. Exopod represented by 2 bristles (1 long bare, 1 shorter plumose). Endopod: 1st segment elongate, bare; 2nd segment with 2 terminal bristles (1 long and clawlike, 1 short). Sutures separating segments indistinct. Sixth limb and Seventh limb s: Absent. Furca ( Fig. 38 f ): Differs from A-1 instar in having 3 instead of 5 claws. Anus visible just dorsal to anterior edge of lamellae. Bellonci Organ ( Fig. 37 d ): Similar to that of A-1 instar. Lips and mouth ( Fig. 38 g –k ): In general, upper lip similar to that of A-3 instar. Lower lip with a large and a small triangular process. Dorsal end of esophagus with transparent elongate structures ( Fig. 38 h ) (similar structures in A-4 instar). Gut content: Filled with fine-grained particulate matter containing numerous minute unidentified ovoids. Remarks. The species is reported for the first time in Conch Sound Blue Hole, Sanctuary Blue Hole, and Double Drop Blue Hole. Ontogenetic development ( Table 9 ). The present collection includes A-3, A-4, and A-5 instars. An A-4 instar of D. jillae was described by Kornicker & Iliffe (1989a: 19) . In that publication the specimen had been identified erroneously as an A-3 instar (Kornicker et al. 2002: Table 5 ). The A-3 and A-5 instars of Deeveya have not been described previously. Carapace: The carapaces of adult and later instars of species of Deeveya are ornamented with walled polygons, and disks that appear bright in transmitted light are present at the intersections of the polygonal walls. In the present collection walled polygons are developed on the carapaces of instars A-1, A-2, and A-3, but only weakly on carapaces of instars A-4 and A-5. The bright disks on the carapace of the A-4 and A-5 instars are relatively larger than those on the carapaces of the later instars as well as that of the adult ( Fig. 39 ). The carapace of the A-4 instar has smaller round bright disks between the larger disks. The large bright disks on instars A-4 and A-5 are interpreted to be forerunners of reticulations, and are no longer present when the reticulations become well developed in later instars and adults. Thus, the large disks on instars A-4 and A-5 are equivalent to reticulations in valves of later instars and adults, and not to the disks on valves of those stages. The smaller disks on valves of the A-4 instar are equivalent to the disks of the adults. The disks form concentric ovals on the valves (this is more apparent on the A-4 instar described herein than on the other stages). First antenna: Segments 3 and 4 are fused on instars A-5 and A-4 instars and are separated by a suture in later stages. Segment 2 of instar A-5 is without a dorsal bristle but bears 1 dorsal bristle on later stages. Segment 3 of instar A-5 is without a ventral bristle but bears 1 bristle on later stages. Segment 4 is without a dor- sal bristle on instar A-5, but bears either a short node or small bristle on instar A-4, and 1 bristle on later instars. Segment 5 is without a ventral bristle on instars A-5 and A-4 but bears a bristle on later instars; the bristle becomes longer on later instars. The 7th segment of instar A-5 lacks b- and c-bristles, and the 8th segment lacks a g-bristle. The 7th segment on the A-4 instar lacks only the b-bristles, and the 8th segment bears a small g-bristle. Instar A-3 and later stages bear on segments all bristles present on the adult; both the b-bristle of the 7th segment and the g-bristle of the 8th segment become longer on later instars. Second antenna: Exopod: The 1st segment is not divided into two parts on instar A-5, is partly divided on A-4, and is divided on later stages. The 1st segment is without a bristle on instar A-5 and bears 1 short bristle on later stages. The 9th segment bears 2 bristles on instars A-5 and A-4, 3 on the A-3 instar, and 4 on later stages. Endopod: 1st segment with 1 dorsal bristle on instars A-5, A-4, and A-3, and 2 dorsal bristles on later stages. 2nd segment without f-bristle on instar A-5 and with bristle on later instars (f-bristle on instar A-4 very small). All stages with g-, h-, i-, and j-bristles. Mandible: Basis: The distributions of bristles on the mandible of known stages are listed in Table 9 . Of particular interest is the distribution of the two distal lateral bristles of the basis that are entwined on later stages. Both bristles are absent on the A-5 instar and one is absent on instar A-4; both bristles are present on the A-3 instar but are not entwined; the bristles cross each other 2 or 3 times on the A-2 instar, and 4 or 5 times on later stages. A distal lateral tooth present on the basis endite of the A-4 instar and later stages is absent on instar A-5. Maxilla and fifth limb: See Table 9 for distribution of bristles. Sixth limb: The 1st and 2nd endopod segments are fused in instars A-5, A-4, and A-3 and separated by a suture in later stages. The limb is absent on instar A-5, is weakly developed and does not extend past the 5th limb on instar A-4, and is well developed and extends past the 5th limb in later stages. Seventh limb: The limb with bristles is absent on instars A-5 and A-4 and bears 3 bristles on later stages. Furca: Each furcal lamella bears 3 claws on instar A-5, 4 claws on instar A-4, 5 claws on instar A-3, 6 claws on instar A-2, and 7 claws on instar A-1 and the adult. Except for the A-1 instar and adult, each lamella of earlier instars bears a small triangular process (incipient claw) following the last claw. Bellonci Organ: Similar on all known stages.