Ethusina dilobotus Chen, 1993

Ng, Peter K. L. & Ho, P. - H., 2003, On The Deep-Water Dorippid Crabs Of The Genus Ethusina Smith, 1884 (Crustacea: Decapoda: Brachyura) From Taiwan, Raffles Bulletin of Zoology 51 (1), pp. 71-85 : 72

Ethusina dilobotus Chen, 1993

( Fig. 1 )

Material examined. – 1 male, 8.0 by 8.2 mm ( NTOU), Station CD 129, 22 5.89’N, 121 5.21’E, 1271-1275 m, coll. TAIWAN 2001, R. V. “Ocean Researcher 1”, 21 Aug.2001 .

Remarks. – The present male specimen (especially the pereoipod proportions and form of the G1) agree best with the description and figures of E. dilobotus by Chen (1993: 338, Fig. 17), although it was described (and only known) on the basis of one specimen from New Caledonia. The carapace of the present specimen, however, seems to have the lateral carapace margin less distinctly convex compared to that figured by Chen (1993: Fig. 17a) and the median frontal tooth also appears to be relatively stronger. The significance of these differences is difficult to assess; and will require more material.

Figures

Fig. 1. Ethusina dilobotus Chen, 1993. Male, 8.0 by 8.2 mm (NTOU). A, overall view; B, carapace.