234 

 diverging towards the bases of the penultimate pair of legs. The posterior margin is strongly 



sinuous towards both ends. 



An epistome is present; its free edge is slightly thickened, but does not project. Basal 

 joint of antennulae small, not inflated (fig. 3«), each of the two next joints cylindrical, as long 

 as the eye-stalk. Antennae small, flagellum consisting of about 8 joints, nearly hairless, reaching 

 a little way beyond the orbit. Lateral margins of buccal cavity subparallel. External maxillipeds 

 narrow, widely gaping; ischium longer than merus, the latter oblong, with the antero-external 

 angle not at all produced, palp very strong, carpus and propodus cylindrical and much longer 

 than the short terminal joint; exognath about one-third as broad as ischium, with some long 

 hairs along outer margin. 



In my specimen the right cheliped is unfortunately absent; the length of the left 

 exceeds that of the carapace. Meropodite rather slender, unarmed at upper border-, wrist 

 short, quadrate, but with the inner angle strongly produced; chela low, palm nearly 

 as lono- as fingers, pubescent, not flattened at lower border, but in the distal half and along 

 lower finger sharply carinate and hairy; fingers long, compressed, fixed finger nearly straight, 

 with four or five minute teeth, placed at large intervals along inner margin, movable finger 

 somewhat curved, with a row of hairs along the back and unarmed at opposite margin. 



Ambulatory legs slender, middle pairs about twice as long as carapace, last three joints 

 heavily fringed, especially at posterior (inner) border. Meropodites unarmed, propodites elongate 

 (except in the last pair of legs), dactyli long, straight, but in the last pair of legs, in which 

 they are . longer than the preceding joints, curved backward. 



The only 9 does not bear any eggs. It is of a bluish-white appearance, but the pubescence 

 is of a dusky -brown. 



This species, which seems to me to be readily distinguishable by its proportionately 

 broad carapace, is also remarkable by its living in very shallow water (depth i8 metres). 



Dimensions in mm. : 



Fronto-orbital di.stance. . 2.75 



Length of eye-stalk. . . 0.75 



Breadth of carapace. . . 5.25 



Length of carapace • . ■ 3-5 



Camatopsis Alcock. 



1899. Camatopsis Alcock. Deep Sea Brachyura "Investigator", p. 75. 



The body in this genus, as in the preceding, is very deep, cubical, and in most respects 

 Camatopsis is very nearly allied to Hephthopelta, but the eyes, if present at all, are 

 greatly reduced, the eye-stalks are thicker, movable only to a slight degree, the inner 

 angle of the wrist of the chelipeds is not produced, and the abdominal segments of the c/ are 

 partly coalesced. 



The only known species is in the "Siboga" collection represented by a whole series 

 of specimens. 



86 



