New records of Bodotriidae (Crustacea: Cumacea) from Puerto Rico with descriptions of three new species
Author
Petrescu, Iorgu
Author
Chatterjee, Tapas
Author
Schizas, Nikolaos V.
text
Zootaxa
2014
3873
5
526
540
journal article
42359
10.11646/zootaxa.3873.5.4
927c05e8-88e5-4c00-9666-ec8a681f0ee1
1175-5326
226432
09072508-9A7C-401E-BD12-81A0721D4CDC
Vaunthompsonia cristata
Bate, 1858
(
Figs. 4
,
5
)
Material examined
. 1 immature ♀, Tourmaline North Buoy,
Puerto Rico
,
18°10' 31"N
,
67°19' 38"W
, 29. 0 4. 2012, 52 m,
MGAB
CUM
1703; 1 immature ♀, east
St. John
,
18°13'18"N
,
64°40'33"W
, 8.05.2012, 24–
30 m
,
MGAB
CUM
1704; 1 immature ♀, St. Croix,
17°50' 03"N
,
64° 28'33"W
, 4. 0 5. 2012, 68 m,
MGAB
CUM
1705; 2 immature ♀♀, Lang Bank, St. Croix,
17°50' 03"N
,
64° 28'33"W
55 m
, 6. 0 5. 2012,
MGAB
CUM
1706; 5 manca, east
St. John
, 8. 0 5. 2012, 53 m,
MGAB
CUM
1707; 1 manca, Cane Bay, St. Croix,
17°6'26" N
,
64°48'50" W
,
60 m
, 30. 0 4. 2011,
MGAB
CUM
1698. GPS coordinates for these locations are provided in
Sherman
et al.
(2013)
.
Diagnosis.
Elongated body, female with double spiny keel. Pereopod 1 basis with 2 stout long setae on medial margin. Uropodal peduncle as long as exopod, endopod with 2 articles, proximal longer.
Immature female
Description.
A detailed description can be found in
Sars (1879)
and
Petrescu (2002)
.
Body (
Fig. 4
A) size:
2.75 mm
.
Carapace (
Fig. 4
A, B). Antenna 1 (
Fig. 4
C) and labium (
Fig. 4
D) as drawn in respective figures.
Mandible (
Fig. 4
E).
Pars incisiva
with four teeth and robust
pars molaris
.
Maxilla 1 (
Fig. 4
F). Outer endite with five simple setae and three serrate ones, inner endite with five setae, palpus with two unequal filaments.
Maxilla 2 (
Fig. 4
G). Apical ending articles with simple and pectinated curved setae, simple, pappose and pectinated ones on top of protopod, numerous simple stout setae on medial margin.
Maxilliped 1 (
Fig. 4
H). Several hand-like setae on medial margin of carpus.
Maxilliped 2 (
Fig. 5
A). In present collections, the immature female specimens with short merus, with 1 plumose seta on medial margin, carpus with 2 pappose setae on outer margin, propodus with 3 pappose setae on medial margin, dactylus with a strong terminal seta.
Maxilliped 3 (
Fig. 5
B). Basis with setules on proximal half and plumose setae on distal serrate one.
Pereopod 1 (
Fig. 5
C). Basis 0.45 times rest of articles combined length, 10 simple short setae and 2 stout longer ones on medial margin, merus 2.18 times ischium length, 1 simple seta on medial margin of ischium, 1 seta on each margin of merus, serrate medial margin, carpus 1.70 times merus length, serrate medial margin, 2 medial setae and 1 outer seta, propodus 1.18 times carpus length, 4 simple setae on medial margin, 3 on outer one, dactylus 0.66 times propodus length, 2 simple setae on both margins, 5 subterminal setae and 1 stout terminal seta; small exopod.
Pereopod 2 (
Fig. 5
D). Basis 0.63 times rest of articles of articles combined length, 4 simple setae and 1 stout one on medial margin, 1 simple seta on outer margin, merus 2.50 times ischium length, 1 simple and 1 stout seta on medial margin of ischium, 2 simple setae on medial margin and 1 on outer one, carpus as long as merus, 3 simple setae on medial margin, 1 on outer one, dactylus 3 times as long as propodus, 1 seta on medial margin of propodus, 4 on medial margin of dactylus, 2 on outer one, 4 subterminal setae and 1 terminal 0.73 times dactylus length; small exopod.
Pereopod 3 (
Fig. 5
E). Basis 1.13 times as long as rest of articles combined length, 2 simple setae on medial margin, merus as long as ischium, 2 simple setae on merus, carpus 1.33 times merus length, 3 simple setae and 2 annulate ones, propodus 0.62 times carpus length, 1 annulate seta on medial margin, dactylus 0.8 times propodus length; slender exopod.
Pereopods 4 and 5 (
Fig. 5
F, G). Very similar to those in
Sars (1879)
and
Petrescu (2002)
.
Uropod (
Fig. 5
H). Uropodal peduncle 0.91 times pleonite 6 length, 0.84 times endopod length, 6 setae on medial margin, exopod 0.86 times endopod length, distal article 2 times as long as proximal one, 2 simple setae on outer margin, 3 on medial one, terminal stout seta 0.9 times distal article of exopod, distal article of endopod 0.66 times proximal article length, 6 setae on medial margin of proximal article, 2 setae on distal one, terminal stout seta 1.1 times distal article length.
FIGURE 4.
Vaunthompsonia cristata
Bate, 1858
female A, body, lateral view; B, carapace, dorsal view; C, antenna 1; D, labium; E, mandible; F, maxilla 1; G, maxilla 2; H, maxilliped 1. Scales in mm: A, 1; B, 0.5; C, 0.2; D, E, H, 0.1; F, G, 0.05.
Remarks.
Maxilliped 3 basis with setules on proximal half, not plumose setae like in
Sars, 1879
and
Petrescu, 2002
and plumose setae on whole margin similar to
Gamô, 1962
and
Kang & Lee, 1995
, propodus with characteristic two setae backwardly projected (absent in
Kang & Lee, 1995
and
Petrescu, 2002
). Pereopod 1 with longer dactylus than in
Petrescu (2002)
. Pereopod 2 with fewer setae on dactylus than in Sars’ specimens, but with more setae than in Belizean specimens. Pereopod 3 with fewer setae than in Sars' (1879) description. Pereopods 4 and 5 without the plumose setae of the Atlantic specimens. Specimens from
Puerto Rico
with segment 6 of pleon longer than in European specimens, uropodal peduncle also longer than females from Atlantic and
Belize
and longer exopod than in Sars and Petrescu (op. cit.); peduncle and rami with fewer setae than in females from Atlantic and
Belize
.
FIGURE 5.
Vaunthompsonia cristata
Bate, 1858
female A, maxilliped 2; B, maxilliped 3; C, pereopod 1; D, pereopod 2; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, uropod. Scales in mm: A, 0.1; B–H, 0.2.
Distribution
. Initially described from the Atlantic waters of Europe (
Bate, 1858
,
Jones, 1976
), but also from the Mediterranean Sea (
Sars, 1879
),
South Africa
(
Day, 1975
), SE Asia,
Annam
,
Fage, 1951
),
Japan
(
Gamô. 1962
,
1967
),
Korea
(
Kang & Lee, 1995
),
Indonesia
(
Petrescu, 1997
). The species was first mentioned from the western Atlantic by
Calman (1907)
from Cruz Bay, St. Jan (
Danish West Indies
),
6/1/96
, about
20 specimens
, all males. Other reports from the western Atlantic are from
Belize
(
Petrescu, 2002, females
) and Exuma Islands (
Bahamas
) (
Petrescu, 2003, males and females
).