209 



for some distance on the palm, gradually passing to its outer surface towards the articulation 

 with the wrist; fingers compressed, sharp, crenulate at inner margins. 



Ambulatory legs moderately elongate, the penultimate pair measuring three times the 

 length of the carapace. Meropodites unarmed near distal end, four times as long as broad, 

 nearly hairless, except in the last pair; carpo- and especially propodite elongate, fringed along 

 anterior margin and along posterior margin of propodite, but nearly hairless in the case of the 

 penultimate pair; dactyli slender, falciform, little curved, hairy, and as long as preceding joints, 

 those of the last pair are strongly bent upward and somewhat backward. 



The first abdominal segment of the cT (fig. ló) is very short, linear, and broader than 

 the third segment, which is little produced laterally; from the third segment to the terminal 

 one the abdomen is regularly tapering. 



This species has been originally recorded from Hongkong, Alcock examined specimens 

 from several British Indian localities (Karachi, coast of Mekran and Madras, Sandheads and 

 Andamans) and Miss Rathbun from Singapore and the Gulf of Siam. 



Dimensions in mm.: 



Fronto-orbital breadth . 

 Greatest width of carapace 



Breadth of front 



Length of carapace .... 



2. TypJilocarcmiis vil/os2is Stimpson. PI. 13, Fig. 2. 



Literature: Alcock, 1. c, p. 322. 



Rathbun, K. Dansk. Vid. Selsk. Skr., 7. Raekke, Afd. 5, n° 4, 1910, p. 343, 

 textfig. 28. 



Stat. 53. Bay of Nangamessi, north coast of Sumba. Depth down to 36 m. i 9- 

 Stat. 285. South-east coast of Timor. Depth 34 m. i (ƒ. 



This species is readily distinguished by means of the following particulars : 



i" The carapace is much narrower, its breadth being only i^j^ times the length; the margins 

 are fringed, but e n t i r e in my specimens, not notched ; and the surface is almost entirely 

 glabrous. According to Alcock, however, the margins are notched, and the surface is 

 pubescent and here and there granulate. 



2" The longitudinal furrow on the surface of the front bifurcates further backward, and this is 

 almost the only tracé of a subdivision of the carapace. 



3" The lateral margins of the buccal cavity are subparallel; the antero-external angle of the merus 

 of the external maxillipeds (fig. 2a) is very much rounded off ("well marked" according to 

 Alcock), so that the lateral margin passes regularly into the anterior one, as in Miss Rathbun's 

 figure; the exognath is broader, and about one-third of the width of the ischium. 



4" The chelipeds are more hairy; at least in the apparently adult cf the left (smaller) chela 

 is thickly covered with club-shaped hairs, whereas the right is smooth and glabrous; the 

 wrist is fringed at both margins with similar hairs. 



5'^ The ambulatory legs are much more hairy than in the preceding species; the hairs are 



61 



