Strianassa lerayi gen. et sp. nov., a new laomediid mud-shrimp from the eastern Pacific, with new records of Axianassa ngochoae Anker, 2010 and Heteroaxianassa heardi (Anker, 2011) in the western Pacific (Malacostraca: Decapoda: Gebiidea)
Author
Anker, Arthur
text
Zootaxa
2020
2020-07-29
4820
3
523
539
journal article
9177
10.11646/zootaxa.4820.3.6
566f9922-d257-41d4-acdc-2afbdcf1b495
1175-5326
4398178
21DA765A-133B-4419-B108-2E5E6AE0667D
Axianassa ngochoae
Anker, 2010
(
Fig. 8
)
Axianassa ngochoae
Anker 2010: 50
, figs. 1–8;
Ngoc-Ho 2014: 556
, fig. 5.
Material examined
.
1 female
(cl
6.2 mm
, missing left cheliped), MNHN-IU-2018-986,
New Caledonia
,
Pouébo
, near
Pouébo
estuary,
20°22’43.0”S–
164°35’01.4”E
, near-shore sand-mud flat near estuary of small river, deep nearshore pool with muddy bottom, depth at low tide:
0.3–0.5 m
, suction pump, in burrow, leg.
A. Anker
,
18 September 2018
.
Remarks
. The present specimen (
Fig. 8
) represents the first record of
A. ngochoae
from
New Caledonia
. The species was previously known from the
type
series from Moorea Island, Society Islands,
French Polynesia
(
Anker 2010
), as well as a single young male specimen from southern
Vietnam
(
Ngoc-Ho 2014
).
Axianassa ngochoae
can be easily distinguished from the other two western Pacific congeners, for instance, from
A. planioculus
Komai & Fujita, 2019
by the dagger-shaped (not distally bifid) antennal scale, and from
A. sinica
Liu & Liu, 2010
by the rounded (not pointed) rostrum and the cheliped meri unarmed on their ventromesial margins (
vs.
with a strong subdistal tooth in
A. sinica
).