Crabs (Crustacea, Decapoda) from the Sea off East and Southeast Asia Collected by the RV Hakuhō Maru (KH- 72 - 1 Cruise) 2. Timor Sea
Author
Islam, Atikul
Author
Banerjee, Abhishek
Author
Wati, Sisca Meida
Author
Banerjee, Sumita
Author
Shrivastava, Deepti
Author
Srivastava, Kumar Chandan
text
Bulletin of the National Museum of Nature and Science. Series A, Zoology
2022
2022-02-22
48
1
5
24
http://dx.doi.org/10.4103/jpbs.jpbs_1287_23
journal article
299034
10.50826/bnmnszool.48.1_5
75026286-ffe2-4545-be4b-6212ec4f0964
2434-091X
12571350
Laubierinia carinata
(Griffin and Tranter, 1986)
(
Fig. 6A–B
)
Material examined
. RV
Hakuhō Maru
KH-72-1 cruise, sta. 28 (Timor Sea;
09°34.4′S
,
128°06.0′E
–
09°33.5′S
,
128°03.4′E
,
295–296 m
depth);
3 m
beam trawl;
June 24, 1972
; 2 ♀♀ (NSMT-Cr 29265: CB
11.1 mm
excluding branchial plate, CL
17.2 mm
excluding pseudorostral spine; CB
9.7 mm
, CL
15.2 mm
).
Remarks
. This species, originally described in the genus
Rochinia
A. Milne-Edwards, 1875
, was transferred to the genus
Laubierinia
established by
Richer de Forges and Ng (2009)
, as the
type
species. The other congeners are
L. globulifera
(Wood-Mason, in
Wood-Mason and Alcock, 1891
) and
L. nodosa
(
Rathbun, 1916
)
.
Laubierinia carinata
is characteristic in having seven large circular islets on the hepatic, mesogastric, cardiac, epibranchial and intestinal regions; the epibranchial islets are replaced by large nodular projections in
L. nodosa
, and strong spines in
L. globulifera
.
Two females
agree well with the description by
Griffin and Tranter (1986a
, as
Rochinia
) and the figures and photographs by
Richer de Forges and Poore (2008
, as
Rochinia
) and
Richer de Forges and Ng (2009)
. However, it should be noted that there is possibly sexual difference in the development of the intestinal islet; the intestinal region is slightly protuberant, with a distinct tubercle apically in a full-grown male from the
Solomon Islands
(
Richer de Forges and Ng, 2009
, fig. 9A–B) and probably in the
holotype
(
Griffin and Tranter, 1986a
, pl. 12), whereas it is replaced by a large circular islet in the females examined (
Fig. 6A–B
).
Fig. 6. A–B:
Laubierinia carinata
(Griffin and Tranter)
, female (NSMT-Cr 29265: CB 11.1 mm×CL 17.2 mm excluding pseudorostral spines) from sta. 28 (Timor Sea, 295–296m depth). C:
Samadinia boucheti
(Richer de Forges and Ng)
, female (NSMT-Cr 29266: CB 12.4 mm×CL 18.3mm including pseudorostral spines) from sta. 27 (Timor Sea, 465–490 m depth). D–E:
Samadinia soela
(Griffin and Tranter)
, female (NSMT-Cr 29267: CB 6.0 mm excluding branchial spines×CL 9.7 mm excluding pseudorostral spines) from sta. 26 (Timor Sea, 610–690 m deep).
Distribution
. Western Australia, Timor Sea,
Kai Islands
,
Papua New Guinea
,
Solomon Islands
,
New Caledonia
, and Norfolk Ridge seamounts,
173–411 m
depth.