Pleistacantha griffini Ahyong and Lee, 2006

Islam, Atikul, Banerjee, Abhishek, Wati, Sisca Meida, Banerjee, Sumita, Shrivastava, Deepti & Srivastava, Kumar Chandan, 2022, Crabs (Crustacea, Decapoda) from the Sea off East and Southeast Asia Collected by the RV Hakuhō Maru (KH- 72 - 1 Cruise) 2. Timor Sea, Bulletin of the National Museum of Nature and Science. Series A, Zoology 48 (1), pp. 5-24 : 13

publication ID

https://doi.org/ 10.50826/bnmnszool.48.1_5

DOI

https://doi.org/10.5281/zenodo.12571401

persistent identifier

https://treatment.plazi.org/id/039387EC-AF51-FF85-FF22-2CF28E39FA54

treatment provided by

Felipe

scientific name

Pleistacantha griffini Ahyong and Lee, 2006
status

 

Pleistacantha griffini Ahyong and Lee, 2006 View in CoL

( Fig. 5A View Fig )

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; 1 ♂ (NSMT-Cr 29258: CL 10.2 mm excluding pseudorostral spines, CB 6.7 mm).

Remarks. The general appearance of species of Pleistacantha changes somewhat owing to sizerelated inflation of the branchial regions and to sexual dimorphism (e.g. Prema et al., 2020). In addition, as briefly discussed by Ahyong and Lee (2006), the distinctness of sexual dimorphism probably varies among species. The taxonomy is, therefore, usually discussed mainly on the basis of adult specimens. The present specimen, a juvenile male with poorly developed gonopods, nevertheless possesses diagnostic features of P. griffini , described from the North West Shelf, Western Australia ( Ahyong and Lee, 2006).

Pleistacantha griffini View in CoL closely resembles P. moseleyi ( Miers, 1886) View in CoL from the Philippines ( Ahyong and Lee, 2006), and of five features discussed by Ahyong and Lee (2006), the followings are available to distinguish the two species (see also Ng et al., 2017, figs. 3A, 4A, 5A, 6A–B, 7A–C, 8A–B, 9A–B, 10A–D). The mesial margins of the branchial regions are more widely separated such that several rows of small spines are present along the midline between the two regions in P. griffini View in CoL (a single row of spines in P. moseleyi View in CoL ); and the merus of the fifth ambulatory leg is relatively shorter in P. griffini View in CoL than in P. moseleyi View in CoL (merus length/pcl: 0.7 in P. griffini View in CoL ; 0.8–1.0 in P. moseleyi View in CoL ; 0.6 in the present male).

Distribution. North West Shelf of Australia; Timor Sea; Sumatra and off the Tanimbar Islands, Indonesia; 295–400 m depth.

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Oregoniidae

Genus

Pleistacantha

Loc

Pleistacantha griffini Ahyong and Lee, 2006

Islam, Atikul, Banerjee, Abhishek, Wati, Sisca Meida, Banerjee, Sumita, Shrivastava, Deepti & Srivastava, Kumar Chandan 2022
2022
Loc

Pleistacantha griffini

Ahyong and Lee 2006
2006
Loc

P. griffini

Ahyong and Lee 2006
2006
Loc

P. griffini

Ahyong and Lee 2006
2006
Loc

P. griffini

Ahyong and Lee 2006
2006
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