New records of spongicolid shrimps (Crustacea, Decapoda, Stenopodidea) from Taiwan
Author
Chen, Chien-Lin
Institute of Marine Biology, National Taiwan Ocean University, Keelung 20224, Taiwan
Author
Chan, Tin-Yam
Institute of Marine Biology, National Taiwan Ocean University, Keelung 20224, Taiwan & Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 20224, Taiwan
text
Zootaxa
2022
2022-09-23
5189
1
255
266
journal article
152801
10.11646/zootaxa.5189.1.23
a1995811-5650-4761-8146-4acebd91801a
1175-5326
7119561
039ABC5F-1799-424F-8E7F-F21E1ECBFD80
Engystenopus palmipes
Alcock & Anderson, 1894
(
Fig. 1
)
Engystenopus palmipes
Alcock & Anderson, 1894: 149
, pl. 9-fig. 1. (
Type
locality: Trincomalee,
Sri Lanka
).—
Alcock 1901: 144
, pl. 2-fig. 3.—A.
Milne-Edwards & Bouvier 1909: 264
.—
Holthuis 1946: 45
;
1955: 144
, fig. 103; 1993: 313, fig. 308.—de
Saint Laurent & Cleva 1981: 161
, figs. 4–6.—
Goy 2010b: 274
, fig. 6.—
Chen
et al
. 2016: 482
—
Bochini
et al
. 2020: 6
.—
Schnabel
et al
. 2021: 61
.
Material examined.
Donggang
fishing port,
Pingtung County
, commercial trawler,
3 Mar 2001
, about
200 m
,
1 male
cl
9.2 mm
(
NTOU
M02475
)
.
Diagnosis.
Rostrum reaching middle of second segment of antennular peduncle; dorsal margin slightly concave, with 10 teeth; ventral margin bearing 1 tooth subdistally. Carapace with large acuminate rostral basal spine; antennal and hepatic spines absent, anterolateral margin with 3 teeth; cervical groove distinct. Cornea narrower than eyestalk and darkly pigmented. First 2 pairs of pereiopods slender; grooming apparatus of first pereiopod well-developed. Dactyli of fourth and fifth pereiopods uniunguiculate, slender. Pleon smooth, first plenoite divided into 2 sections by distinct transverse carina. Second to fifth pleura armed with minute spines on ventral margins. Sixth pleonite widened posteriorly, with 2 minute spines on posteroventral margin. Telson lance-shaped; with 2 longitudinal dorsal ridges, each with 5 large spines; 2 pairs of basal spinules present. Uropods with lateral margin of endopod unarmed, that of exopod serrated with 6 teeth.
Coloration.
Body generally reddish, covered with whitish spots (
Goy 2010b
).
Distribution.
Indo-West Pacific:
Madagascar
, Sri-Lanka,
Australia
,
Philippines
,
Indonesia
,
Australia
, and now
Taiwan
, at depths from
174–
640 m
.
Remarks.
The single Taiwanese specimen, though lacking the third pereiopods, fits well with the descriptions of this species provided by de
Saint Laurent & Cleva (1981)
and
Goy (2010b)
. The genus
Engystenopus
is now restricted only to
E. palmipes
(
Goy 2010b
)
. The present record slightly extends the northern-most distribution of this monotypic genus to
Taiwan
.