I. '21. 6 



The anterior part of the carapace is strongly calcified; behind 

 tlie cervical groove it is much softer. The rostrum and the 

 lateral frontal projections are of about equal length, but the 

 former is slightly more rounded than the latter. In front of 

 the rostrum and lying between the ophthalmic scales there is 

 a narrow pointed movable process attached to the ophthalmic 

 segment. It does not reach the tip of the scales, and ends in 

 a sharp point. There are tufts of short setae on the dorsal 

 surface of the carapace especially behind the lateral frontal 

 projections. At the antero-lateral angles of the carapace there 

 are two or three small teeth and from these, along each lateral 

 margin to the cervical groove, there is a row of stronger teeth, 

 eight or nine in number, separated from the upper ^rface by a 

 deep groove, the linea anomurica. 



The telson is markedly asymmetrical and concave on its 

 posterior margin, which bears a row of small sharp teeth. 



The eyestalks are of almost uniform length throughout, 

 tapering very slightly distally. The corneal area is large, 

 deeply and narrowly emarginate on its posterior border. The 

 ophthalmic scales are very large and broad, triangular in out- 

 line, and strongly calcified. The anterior margin of each slopes 

 at an angle of forty-five degrees from its outer to its inner 

 margin and is divided into strong teeth, which increase in size 

 anteriorly. The scales lie on the same level as the dorsal sur- 

 face of the carapace. 



The second joint of the antennular peduncle reaches just to 

 the tip of the cornea. The upper flagellum is very slightly 

 longer than the third joint of the peduncle. 



The second joint of the antennal peduncle has a strong spine 

 at the outer and a small tooth at the inner distal angle. The 

 acicle or scale is broad, flat, and strongly calcified. It tapers 

 to a sharp point and on its inner edge there is a row of four or 

 five strong teeth. The tip of the acicle does not reach the 

 distal end of the fourth joint. As usual the third is scarcely 

 visible from above. The fourth joint is slender compared with 

 the second and is cylindrical. The fifth is slightly longer than 

 the fourth and is still more slender. The flagellum bears a fringe 

 of long setae. Setae are also present on all peduncular joints, 

 most plentifully on the second. They are also present in 

 tufts on the acicle. The cornea reaches just beyond the tip of 

 the fourth peduncular j oint . 



The third maxillipedes are contiguous at the base, not separate 

 as in Eupagurus, 



The left cheliped is enormously larger than the right, 

 the disparity in size being very much greater than is usual in 

 Eupagurus. The fingers of the left cheliped move in a plane 

 inclined to the horizontal. The merus is flattened on the outer 

 side and covered with small pointed tubercles ; there is a row 

 of small pointed teeth at the distal upper end, and a shght 

 ridge, lined with tubercles, on the upper inner edge. The 

 carpus has a similar ridge which bears a row of sharp teeth ; 



