From 175eb6a63658f3ca553842601d830ef7202a076d Mon Sep 17 00:00:00 2001 From: ggserver Date: Fri, 6 Dec 2024 11:52:25 +0000 Subject: [PATCH] Add updates up until 2024-12-06 11:46:20 --- .../87/2D218786FF91FFADFE5B082DFBACFD3C.xml | 519 +++++++++++++ .../87/2D218786FF95FFA6FE5B0886FAD3FB54.xml | 698 ++++++++++++++++++ 2 files changed, 1217 insertions(+) create mode 100644 data/2D/21/87/2D218786FF91FFADFE5B082DFBACFD3C.xml create mode 100644 data/2D/21/87/2D218786FF95FFA6FE5B0886FAD3FB54.xml diff --git a/data/2D/21/87/2D218786FF91FFADFE5B082DFBACFD3C.xml b/data/2D/21/87/2D218786FF91FFADFE5B082DFBACFD3C.xml new file mode 100644 index 00000000000..e8c6ef8cb77 --- /dev/null +++ b/data/2D/21/87/2D218786FF91FFADFE5B082DFBACFD3C.xml @@ -0,0 +1,519 @@ + + + +Two new species of Trichomycterus (Siluriformes: Trichomycteridae) from the Rio Itabapoana Basin, south-eastern Brazil + + + +Author + +Costa, Wilson J. E. M. +wcosta@acd.ufrj.br + + + +Author + +Barbosa, Maria Anaïs +4159E4CF-A382-4515-BB10-06889E0B393D +Laboratory of Systematics and Evolution of Teleost Fishes, Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil. +anaisbarbosasv@gmail.com + + + +Author + +Katz, Axel M. +D6A935E2-3A97-444A-84CC-0CEC45CFFB79 +Laboratory of Systematics and Evolution of Teleost Fishes, Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil. +axelmk@gmail.com + +text + + +European Journal of Taxonomy + + +2024 + +2024-12-02 + + +970 + + +122 +137 + + + + +https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2753/12607 + +journal article +10.5852/ejt.2024.970.2753 +2118-9773 +14288599 +5CC3E845-6E67-4C01-96F7-E143DBA292B9 + + + + + + + +Trichomycterus +( +Cryptocambeva +) +berthalutzae + + +sp. nov. + + + + +urn:lsid:zoobank.org:act: +1C096988-F641-43DB-8EFC-B3431F75FD13 + + + + + +Figs 1 +, +2A–C +, +3 +, +Table 1 + + + +Trichomycterus +sp. + +– + +Vilardo +et al. +2023 + +: fig. 3 (phylogenetic relationships). + + + + + +Diagnosis + + + + +Trichomycterus +( +Cryptocambeva +) +berthalutzae + +sp. nov. +is distinguished from all other species of the NMM-clade of + +Cryptocambeva + +by having a shorter nasal barbel, its tip not reaching the opercular patch of odontodes (vs reaching or surpassing it), and a sinuous medial margin of the autopalatine ( +Fig. 2A +, vs about straight or slightly concave). + +Trichomycterus +( +Cryptocambeva +) +berthalutzae + +is also distinguished from + +T. brunoi + +and + +T. fuliginosus + +by having a minute pectoral-fin filament, its length about 10% or less of the pectoral-fin length (vs about 20–25%), more dorsal procurrent caudal-fin rays (20 or 21, vs 16–19), flank with sparse dark brown dots that are separated among themselves by large interspaces (vs dots highly overlapped), the presence of a lateral expansion on the sesamoid supraorbital ( +Fig. 2A +; vs absence), and absence of an elongate expansion on the posteroventral margin of the metapterygoid ( +Fig. 2B +, vs presence, +Barbosa & Costa 2010 +: figs 1, 4); and from + +T. argos + +by having fewer opercular odontodes (12–15 vs 16–22) and the absence of a vertical zone of dark chromatophores on the caudal-fin base, forming a distinctive bar (vs presence). + + + + + +Etymology + + + +The specific epithet + +‘ +berthalutzae + +’ honours the Brazilian herpetologist Bertha Maria Júlia Lutz (1894– 1976), professor emeritus at Federal University of +Rio de Janeiro +, who between 1919 and 1964 worked at the National Museum of that institution, describing several species of anurans from the mountains of the Atlantic Forest and other locations. She was also an important feminist activist, being the main actor in guaranteeing women’s right to vote during the United Nations Conference in San Francisco, 1945. + + + + + +Type material + + + + + +Holotype + +BRAZIL +• +78.1 mm +SL; +Espírito Santo State +, +Mimoso do Sul Municipality +, +Rio Alto Pratinha +, tributary of the +Rio Muqui do Sul +, +Rio Itabapoana Basin +; +21°03′51″ S +, +41°18′13″ W +; ca + +205 m +a.s.l. + +; 27 Feb. + + +2007; M.A. Barbosa, J.L.O. Mattos and E.M. Ribeiro leg; UFRJ 12930. + + + +Paratypes + +BRAZIL +• +3 ex. +, 19.0– +35.6 mm +SL; same data as for holotype; UFRJ 7546 + +• +3 ex. +, 32.0– +96.1 mm +SL; + + +same data as for holotype; CICCAA 07749 +• + +2 ex. +(C&S), +31.2–44.5 mm +SL; same data as for holotype; UFRJ 12932 + +. • + +9 ex. +, +21.1–46.2 mm +SL; same data as for holotype; + +19 Sep. 2022 + +; +A.M. Katz +and P.J + +. + + +Vilardo leg; UFRJ 13252 • +1 ex. +(C&S), +45.8 mm +SL; same data as for preceding; UFRJ 13650. + + + + + +Description + + + +GENERAL +MORPHOLOGY +. Morphometric data see +Table 1 +. Body moderately slender, head and trunk with dorsal and ventral profiles slightly convex, dorsal and ventral profiles of caudal peduncle nearly straight, greatest body depth at vertical just anterior to pelvic-fin base. Trunk subcylindrical anteriorly, compressed posteriorly. Anus and urogenital papilla at vertical just posterior to dorsal-fin origin. Head subtrapezoidal in dorsal view, snout profile rounded. Eye relatively small, dorsally positioned in head. Posterior nostril located nearer anterior nostril than orbital rim. Tip of maxillary and rictal barbels reaching between anterior and posterior regions of interopercular patch of odontodes, tip of nasal barbel reaching about midway between orbit and opercle or slightly before. Mouth subterminal. Jaw teeth pointed, slightly curved, arranged in irregular rows. Premaxillary teeth 47–60, dentary teeth 40–43. Odontodes conical. Opercular odontodes 12–15, interopercular odontodes 34–42. Branchiostegal rays 8. + + +FINS +. Dorsal and anal fins subtriangular, anterior and posterior margins slightly convex; longest ray longer than fin base. Total dorsal-fin rays 10–11 (ii + II + 6–7), total anal-fin rays 9 (ii + II + 5); anal-fin origin at vertical shortly posterior to middle of dorsal-fin base, through base of 4 +th +branched ray. Dorsal-fin origin at vertical through centrum of 20 +th +vertebra; anal-fin origin at vertical between centrum of 22 +nd +or 23 +rd +vertebra. Pectoral fin subtriangular in dorsal view, posterior margin slightly convex, first pectoral-fin ray terminating in filament, its length about 10% or less of pectoral-fin length without filament. Total pectoral-fin rays 7 (I + 6). Pelvic fin rounded, its posterior extremity covering urogenital papilla, at vertical through anterior half of dorsal-fin base. Pelvic-fin bases medially separated by minute interspace. Total pelvic-fin rays 5 (I + 4). Caudal fin slightly rounded, dorso-ventrally symmetrical. Total principal caudal-fin rays 13 (I + 11 + I), total dorsal procurrent rays 20 or 21 (xix–xx + I), total ventral procurrent rays 14 or 15 (xiii–xiv + I). + + + +Fig. 1. + +Trichomycterus +( +Cryptocambeva +) +berthalutzae + +sp. nov. +, holotype (UFRJ 12930), 78.1 mm SL. +A +. Left lateral view. +B +. Dorsal view. +C +. Ventral view. + + + +LATERO-SENSORY +SYSTEM +. Supraorbital canal, posterior section of infraorbital canal and postorbital canal continuous. Supraorbital sensory canal with 3 paired pores: s1, adjacent to medial margin of anterior nostril; s3, adjacent and just posterior to medial margin of posterior nostril, and s6, at transverse line through posterior half of orbit; s6 pore nearer to its symmetrical homologous s6 pore than to orbit, sometimes at close proximity. Infraorbital sensory canal with 2 segments. Anterior infraorbital canal with 2 pores: i1, at transverse line through anterior nostril, and i3, at transverse line just anterior to posterior nostril. Posterior infraorbital canal with two pores: i10, adjacent to ventral margin of orbit, and i11, posterior to orbit. Postorbital canal with 2 pores: po1, at vertical line above posterior portion of interopercular patch of odontodes, and po2, at vertical line above posterior portion of opercular patch of odontodes. Lateral line of trunk with 2 pores just posterior to head. + + + +Fig. 2. +Osteological structures. +A–C +. + +Trichomycterus +( +Cryptocambeva +) +berthalutzae + +sp. nov. +(UFRJ 13252). +D–F +. + +Trichomycterus +( +Psammocambeva +) +fabioheppi + +sp. nov. +(UFRJ 12933). +A, D +. Mesethmoidal region and adjacent structures, left and middle portions, dorsal view. +B +, +E +. Left jaw suspensorium and opercular series, lateral view. +C +, +F +. Parurohyal, ventral view. Larger stippling represents cartilaginous areas. + + + + +Table 1. +Morphometric data of + +Trichomycterus +( +Cryptocambeva +) +berthalutzae + +sp. nov. + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+Holotype + +Paratypes +(n = 7) +
standard length (SL)78.140.9–96.1
+percentage of standard length +
body depth14.814.6–15.8
caudal peduncle depth14.313.8–15.3
body width12.310.4–13.4
caudal peduncle width4.93.1–5.1
pre-dorsal length62.161.3–67.0
pre-pelvic length58.455.5–60.1
dorsal-fin base length11.011.5–13.5
anal-fin base length9.210.2–11.6
caudal-fin length16.514.9–18.1
pectoral-fin length11.611.5–14.6
pelvic-fin length9.59.4–11.6
head length20.220.4–22.5
+percentage of head length +
head depth50.343.6–51.9
head width90.982.9–92.5
snout length43.740.9–46.3
interorbital width30.523.6–27.6
preorbital length13.29.8–15.5
eye diameter9.48.7–14.9
+ + +OSTEOLOGY +( +Fig. 2A–C +). Anterior margin of mesethmoid nearly straight to slightly convex, mesethmoid cornu narrow. Lacrimal narrow and flat, its largest length about +3 +/5 of sesamoid supraorbital largest length. Sesamoid supraorbital flat, its largest length smaller than largest maxilla length, with distinctive lateral projection. Premaxilla sub-rectangular in dorsal view, slightly tapering laterally. Maxilla boomerang-shaped, slender, shorter than premaxilla, with minute posterior process. Autopalatine sub-rectangular in dorsal view when excluding posterolateral process, lateral margin about straight, medial margin sinuous. Shortest autopalatine width about half autopalatine length. Latero-posterior process of autopalatine subtriangular, its length about equal shortest autopalatine width. Metapterygoid subtriangular, deeper than long, with distinctive postero-dorsal projection. Quadrate robust, dorsoposterior outgrowth in close proximity to hyomandibular outgrowth. Hyomandibula long, anterior outgrow deep, with small concavity on dorsal margin. Opercle slender, depth of opercular odontode patch about half dorsal articular facet of hyomandibula, dorsal process of opercle short, subtriangular. Interopercle long, about three fourths of hyomandibula length. Preopercle compact, slender, with small ventral expansion. Parurohyal robust, lateral process relatively elongate, pointed, slightly curved. Parurohyal head well-developed, with prominent anterolateral paired process. Middle parurohyal foramen oval, its largest length about equal to posterior parurohyal process. Posterior parurohyal process about half distance between anterior margin of parurohyal and anterior insertion of posterior process. Vertebrae 37. Ribs 13 or 14. Two dorsal hypural plates, corresponding to hypurals 4 + 5 and 3, respectively; single ventral hypural plate corresponding to hypurals 1 and 2 and parhypural. + + +COLOURATION +IN +ALCOHOL +. Flank, dorsum and head side light yellowish grey with minute dark brown dots, slightly larger and sometimes horizontally coalesced on anterior lateral midline, more concentrated on dorsum. In juveniles below about +25 mm +SL, head and trunk light yellowish grey with longitudinal row of dark brown spots on flank midline, and similar row between flank midline and venter. Barbels light grey, with brown pigmentation concentration on dorsal surface of basal portion. Fins hyaline, with minute brown dots on basal portion. + + + + + +Distribution + + + +Presently known only from the +type +locality, Rio Alto Pratinha, tributary of the Rio Muqui do Sul, Rio Itabapoana Basin, Serra do Mar ( +Fig. 3 +). + + +Subgenus + +Psammocambeva +Costa, 2021 + + + + + \ No newline at end of file diff --git a/data/2D/21/87/2D218786FF95FFA6FE5B0886FAD3FB54.xml b/data/2D/21/87/2D218786FF95FFA6FE5B0886FAD3FB54.xml new file mode 100644 index 00000000000..46bba71108f --- /dev/null +++ b/data/2D/21/87/2D218786FF95FFA6FE5B0886FAD3FB54.xml @@ -0,0 +1,698 @@ + + + +Two new species of Trichomycterus (Siluriformes: Trichomycteridae) from the Rio Itabapoana Basin, south-eastern Brazil + + + +Author + +Costa, Wilson J. E. M. +wcosta@acd.ufrj.br + + + +Author + +Barbosa, Maria Anaïs +4159E4CF-A382-4515-BB10-06889E0B393D +Laboratory of Systematics and Evolution of Teleost Fishes, Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil. +anaisbarbosasv@gmail.com + + + +Author + +Katz, Axel M. +D6A935E2-3A97-444A-84CC-0CEC45CFFB79 +Laboratory of Systematics and Evolution of Teleost Fishes, Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil. +axelmk@gmail.com + +text + + +European Journal of Taxonomy + + +2024 + +2024-12-02 + + +970 + + +122 +137 + + + + +https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2753/12607 + +journal article +10.5852/ejt.2024.970.2753 +2118-9773 +14288599 +5CC3E845-6E67-4C01-96F7-E143DBA292B9 + + + + + + + +Trichomycterus +( +Psammocambeva +) +fabioheppi + + +sp. nov. + + + + +urn:lsid:zoobank.org:act: +22E77E5D-0C5D-4D9A-8DF8-732AB7302CDB + + + + + +Figs 2D–F +, +3–4 +, +5A +, +Table 2 + + + + + +Diagnosis + + + + +Trichomycterus +( +Psammocambeva +) +fabioheppi + +sp. nov. +is distinguished from all other species of + +Trichomycterus + +s. str. +by having a unique morphology of the caudal fin, which is dorso-ventrally asymmetrical, with the dorsal portion longer than the ventral one, consequently making the ventral-most principal caudal-fin rays about half the length of dorsal-most ones ( +Fig. 5A +; vs caudal fin dorso-ventrally symmetrical as in all other species of + +Psammocambeva + +, +Fig. 5C–E +, or dorsal portion just slightly longer than ventral one in larger specimens of + +Trichomycterus +( +Cryptocambeva +) +maracaya +Bockmann & Sazima, 2004 + +, with dorsal-most and ventral-most principal caudal-fin rays about same length, +Bockmann & Sazima, 2004 +: fig. 1). + +Trichomycterus +( +Psammocambeva +) +fabioheppi + +differs from all congeners, except species of the + +Psammocambeva + +beta-clade, by combining a shallow anterior outgrowth of the hyomandibula ( +Fig. 2E +; vs never so shallow, e.g., Costa +et al. +2022: fig. 4) and a long interopercle, about 90% of the hyomandibula longitudinal length ( +Fig. 2E +; vs about 75% or less). + +Trichomycterus +( +Psammocambeva +) +fabioheppi + +is also distinguished from all species of the + +Psammocambeva + +beta-clade by having a rounded caudal fin (vs subtruncate or emarginate). + +Trichomycterus +( +Psammocambeva +) +fabioheppi + +differs from all other congeners of the + +Psammocambeva + +beta-clade, except + +T. largoperculatus + +and + +T. tantalus + +, by having a relatively short preopercle with a distinctive ventral expansion ( +Fig. 2E +; vs a relatively longer, without distinctive ventral expansion). + +Trichomycterus +( +Psammocambeva +) +fabioheppi + +is also distinguished from + +T. largoperculatus + +and + +T. tantalus + +by possessing eight pectoral-fin rays (vs nine) and a broad dark brown stripe along lateral mid-line (vs no dark brown stripe). + + + + +Fig. 3. +Geographical distribution of trichomycterine catfishes in the Rio Itabapoana Basin. + + + + +Fig. 4. + +Trichomycterus +( +Psammocambeva +) +fabioheppi + +sp. nov. +, holotype (UFRJ 12931), 68.1 mm SL. +A +. Left lateral view. +B +. Dorsal view. +C +. Ventral view. + + + + + +Etymology + + + +The specific epithet + +‘ +fabioheppi + +’ honours the Brazilian herpetologist Fábio Hepp, researcher at the Institute of Biology, Federal University of +Rio de Janeiro +, who collected the +type +series of this species. + + + + + +Type material + + + + + +Holotype + +BRAZIL +• +68.1 mm +SL; +Espírito Santo State +, +Mimoso do Sul Municipality +, +Serra das Torres +, stream tributary to +Rio Preto +, +Rio Itabapoana Basin +; +21°02′06″ S +, +41°15′01″ W +; ca + +450 m +a.s.l. + +; + +6 Sep. 2010 + +; +F. Hepp +, G. +R +. +Silva, C.L +. Dias and +V +. +Sedano +; UFRJ 12931. + + + + +Paratypes + + + + +BRAZIL +• +8 ex. +, +27.4–49.7 mm +SL; same data as for holotype; UFRJ 7939 + +• + +3 ex. +(C&S), +35.2–53.7 mm +SL; same data as for holotype; UFRJ 12933 + +• + +4 ex. +, +26.5–47.9 mm +SL; same data as for holotype; CICCAA 07750 + +. + + + + + +Description + + + +GENERAL +MORPHOLOGY +. Morphometric data are in +Table 2 +. General morphology of trunk and head as described for + +T. +( +Cryptocambeva +) +berthalutzae + +sp. nov. +Anus and urogenital papilla at vertical just anterior to middle dorsal-fin base. Eye moderately large, slightly smaller than exposed area of opercular patch of odontodes, dorsally positioned in head. Posterior nostril located at about ⅓ of distance between anterior nostril than orbital rim. Tip of maxillary and rictal barbels reaching between anterior and posterior regions of interopercular patch of odontodes, tip of nasal barbel reaching about midway between orbit and opercle or slightly before. Mouth subterminal. Jaw teeth pointed, slightly curved, arranged in irregular rows. Premaxillary teeth 41–83, dentary teeth 58–85. Odontodes conical. Opercular odontodes 17–19; interopercular odontodes 36–40. Branchiostegal rays 8. + + +FINS +. Dorsal and anal fins subtriangular, anterior and posterior margins slightly convex; longest ray shorter than fin base. Total dorsal-fin rays 12 (iii + II + 7), total anal-fin rays 10 (iii + II + 5); anal-fin origin at vertical just anterior to dorsal-fin base end, through base of 5 +th +branched ray. Dorsal-fin origin at vertical through centrum of 18 +th +or 19 +th +vertebra; anal-fin origin at vertical between centrum of 22 +nd +or 23 +rd +vertebra. Pectoral fin subtriangular in dorsal view, posterior margin slightly convex, first pectoral-fin ray terminating in filament, its length about 20–25% of pectoral-fin length without filament. Total pectoral-fin rays 8 (I + 7). Pelvic fin subtruncate, its posterior extremity not reaching urogenital papilla, at vertical through middle of dorsal-fin base. Pelvic-fin bases medially separated by interspace about ⅓ or less pelvic-fin base width. Total pelvic-fin rays 5 (I + 4). Caudal fin rounded, dorso-ventrally asymmetrical, dorsal portion longer than ventral one. Total principal caudal-fin rays 13 (I + 11 + I), total dorsal procurrent rays 17–20 (xvi–xix + I), total ventral procurrent rays 13–16 (xii–xv + I). + + +LATERO-SENSORY +SYSTEM +. As described for + +T. +( +Cryptocambeva +) +berthalutzae + +sp. nov. + + +OSTEOLOGY +( +Fig. 2D–F +).Anterior margin of mesethmoid gently concave, mesethmoid cornu subtriangular in dorsal view, tip rounded. Lacrimal oval, its largest length about ⅓ of sesamoid supraorbital length. Sesamoid supraorbital narrow, rod-like, longer than premaxilla largest length. Premaxilla sub-rectangular in dorsal view. Maxilla boomerang-shaped, slender, about so long as premaxilla, with minute posterior process. Autopalatine sub-rectangular in dorsal view when excluding posterolateral process, its shortest width about half autopalatine length, lateral margin about straight, medial margin sinuous. Latero-posterior process of autopalatine subtriangular, its length about ⅔ of autopalatine length. Metapterygoid subtrapezoidal, deeper than long, with distinctive projection on anterior margin. Quadrate robust, dorsoposterior outgrowth in close proximity to hyomandibular outgrowth. Hyomandibula long, anterior outgrow shallow, with pronounced concavity on dorsal margin. Opercle moderately elongate, depth of opercular odontode patch about +3 +/ +5 +of dorsal articular facet of hyomandibula, dorsal process of opercle short and blunt. Interopercle long, its longitudinal length nearly equal to hyomandibula longitudinal length. Preopercle compact, with pronounced ventral expansion. Parurohyal robust, lateral process relatively elongate, pointed, slightly curved. Parurohyal head well-developed, with prominent anterolateral paired process. Middle parurohyal foramen oval, its largest length smaller than parurohyal posterior process. Posterior parurohyal process short, about half distance between anterior margin of parurohyal and anterior insertion of posterior process. Vertebrae 35 or 36. Ribs 12–14. Two dorsal hypural plates, corresponding to hypurals 4 + 5 and 3, respectively; single ventral hypural plate corresponding to hypurals 1 and 2 and parhypural. + + + +Fig. 5. +Caudal fin morphology in species of + +Psammocambeva +Costa, 2021 + +, left lateral view. +A +. + +Trichomycterus +( +Psammocambeva +) +fabioheppi + +sp. nov. +, holotype (UFRJ 12931), 68.1 mm SL. +B +. + +Trichomycterus longibarbatus +Costa, 1992 + +, topotype (UFRJ 3368), 52.9 mm SL. +C +. + +Trichomycterus travassosi +(Miranda Ribeiro, 1949) + +(UFRJ 5190), 57.2 mm SL. +D +. + +Trichomycterus puriventris +Barbosa & Costa, 2012 + +(UFRJ 5398), paratype, 76.9 mm SL. +E +. + +Trichomycterus largoperculatus +Costa & Katz, 2022 + +, holotype (UFRJ 6987), 77.8 mm SL. + + + + +Table 2. +Morphometric data of + +Trichomycterus +( +Psammocambeva +) +fabioheppi + +sp. nov. + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+Holotype + +Paratypes +(n = 6) +
standard length (SL)68.142.3–53.7
+percentage of standard length +
body depth15.516.8–20.4
caudal peduncle depth13.011.6–13.9
body width13.410.6–14.1
caudal peduncle width4.73.5–4.6
pre-dorsal length63.463.5–67.7
pre-pelvic length61.961.6–65.6
dorsal-fin base length11.311.7–13.3
anal-fin base length9.49.5–11.4
caudal-fin length13.313.9–16.4
pectoral-fin length12.811.5–13.3
pelvic-fin length9.69.0–10.7
head length22.121.7–24.5
+percentage of head length +
head depth45.247.8–55.2
head width84.486.7–93.5
snout length44.339.1–42.7
interorbital width25.325.6–31.6
preorbital length13.710.1–13.8
eye diameter10.211.8–14.5
+ + +COLOURATION +IN +ALCOHOL +. Flank light yellowish grey with broad dark brown stripe along lateral mid-line interrupted on its posterior-most portion, longitudinal row of dark brown spots on dorsal portion, and small brown dots irregularly arranged on ventral portion. Dorsum light yellowish grey with middorsal row of small brown spots between nape and dorsal-fin origin. Dorsal and lateral portions of head brown, with light yellowish grey infraorbital zone. Ventral surface of head and trunk yellowish white. Jaws and nasal barbel brownish grey, maxillary and rictal barbels light grey. Fins hyaline, with faint brown spots on basal portion of unpaired and pectoral fins. + + + + + +Distribution + + + + +Trichomycterus +( +Psammocambeva +) +fabioheppi + +is presently only known from the +type +locality, a small stream tributary to the Rio Preto, Rio Itabapoana Basin, at Serra das Torres, which is part of the Serra do Mar ( +Fig. 3 +). + + +Key to the identification of trichomycterine catfishes from the Rio Itabapoana Basin + + + + + + +1. Flank with minute dark brown dots on its entire surface, never forming large spots or broad stripes; seven pectoral-fin rays ...................................................................................................................... 2 + + +– Flank with large spots or broad stripes; eight pectoral-fin rays ........................................................ 3 + + + + + +2. Nasal barbel posteriorly area anterior to opercular patch of odontodes; pectoral-fin filament about 10% of pectoral-fin length or less;dorsal procurrent caudal-fin rays20or21;flank with sparse dark brown dots that are separated among themselves by large interspaces + + +T. +( +Cryptocambeva +) +berthalutzae + + +sp. nov. + + + + +– Nasal barbel posteriorly reaching opercular patch of odontodes; pectoral-fin filament about 20–25% of pectoral-fin length; dorsal procurrent caudal-fin rays 17–19; flank with highly overlapped dots. .......................................................................... + + +T. +( +Cryptocambeva +) +brunoi + +Barbosa & Costa, 2010 + + + + + + + +3. Flank with broad longitudinal dark brown stripe on midline; caudal fin rounded, asymmetrical, with dorsal portion longer than ventral portion; paired s6 pore + + +T. +( +Psammocambeva +) +fabioheppi + + +sp. nov. + + + +– Flank with longitudinal rows of dark brown blotches; caudal fin subtruncate, symmetrical; single median s6 pore .................................................................................................................................. 4 + + + + + +4. Maxillary barbel reaching between interopercle and pectoral-fin base; pectoral-fin filament about 40–50% of pectoral-fin length; premaxillary teeth 30–34, dentary teeth 38–41 ................................ .......................................................... + + +T. +( +Psammocambeva +) +caudofasciatus + +Alencar & Costa, 2004 + + + + + +– Maxillary barbel reaching interopercle; pectoral-fin filament about 10–20% of pectoral-fin length; premaxillary teeth 43–46, dentary teeth 51–54 .. + + +T. +( +Psammocambeva +) +mimosensis + +Barbosa, 2013 + + + + + + + + \ No newline at end of file