Redescription of Neocypridella fossulata (Daday, 1910) (Crustacea: Ostracoda) and description of a new subfamily
Author
Savatenalinton, Sukonthip
text
Zootaxa
2022
2022-01-25
5093
1
83
93
journal article
2422
10.11646/zootaxa.5093.1.6
ddac9238-6485-42b8-9977-329e8e9563cf
1175-5326
5901122
78CA9E85-64B7-4B4B-B691-63881F63B829
Genus
Neocypridella
Hartmann & Puri, 1974
Nom.nov. pro
Cypridella
Vavra, 1895
, nec DeKoninck, 1841
Diagnosis (modified from
Vávra 1895
,
Daday 1910
).
Cp of medium size (c. 750–950 μm), in lateral view subglobular, valve surface smooth, set with shallow pits or weakly sculptured, LV overlapping RV along all free margins.
Valves without marginal septa; LV with short anteroventral inner list; RV without inwardly displaced anterior selvage; anterior calcified inner lamella narrow, slightly wider in LV than in RV; posterior calcified inner lamella narrow in LV, almost absent in RV.
A1 seven-segmented. A2 with divided penultimate segment. β-seta on Md-palp markedly large. Terminal segment of Mx1-palp subquadrate. T1 with a-, b-, d-setae. Both d1 and d2 setae on T2 present and long; T2 with penultimate segment divided. T3 with apical pincer organ. CR slender with two claws (Ga and Gp) and two setae (Sa and Sp), Sa seta very short or absent; CR attachment slender with slim db and vb. Terminal segment of right prehensile palp broad, triangular, terminal segment of left prehensile palp hook-like, hemipenis with broad, subtriangular medial shield, lateral shield elongated with blunt tip, testis tubes starting in anterior half of Cp and forming parallel semicircles in posterior half of Cp.
Species included:
Neocypridella lemurensis
(
Vávra, 1895
)
(
type
species),
N. dartevellei
(
Brehm, 1939
)
,
N. devexa
(
Daday, 1910
)
,
N. fossulata
(
Daday, 1910
)
.
Remarks
. No males could be found in the
type
material of
Daday (1910)
. However,
Vávra (1895)
illustrated a male, which shows prehensile palps, hemipenis and peculiar patterns of testis tubes (see also
Martens 1984
). Apart from the published papers on the genus
Neocypridella
, several samples of
Neocypridella
spp.
from the African ostracod collection of Prof. Koen Martens (RBINS) were observed to confirm the characters and the absence of a Triebel’s loop on the CR attachment of the genus.