FROM THE MONTE BELLO ISLANDS. 659 
behind the angle of the orbit; they are widely separated by a 
granular rim ; all these teeth except the posterior one are above 
the true margin, which inclines downward toward the angle of 
the buccal cavity, as in all the members of this genus. The 
frontal lobes are obliquely truncate, and separated by a broad, 
shallow V. 
The upper-outer surface of the carpus and the upper surface 
of the manus are occupied by deep, more or less rounded cavities, 
with rims which are microscopically granulated but appear smooth 
in relation to the general granulation of the body. The blackish- 
brown colour of the fingers runs far back on the lower part of the 
palm in the male, but is confined to the digits in the female; 
their granules are set in a felt-like background. 
The ambulatory legs are remarkable in having the upper 
surface of the carpal and propodal segments each occupied by a 
deep cavity bordered on the posterior margin by a thin rim, 
somewhat resembling a longitudinal section of a serpulid tube, 
and on the anterior margin by a thick band of pointed granules 
irregularly placed. 
Lower surface of crab hairy, the hairs of two kinds, one fine, 
the other coarse, but both soft. 
Glyptoxanthus has hitherto been known only from the coasts 
of middle America, West Africa, and the Cape Verde Islands. 
G. erosus (Stimpson) from the West Indian region attains a 
width of about 4em. When small, about the size of these spe- 
cimens of G. cymbifer, it has a granulated surface; with age 
the granules wear down smooth, giving it a much more eroded 
appearance. 
Our species differs from all the other described species in the 
curious hollows or cups on the chelipeds and legs. 
XANTHIAS ATROMANUS (Haswell). 
Aanthodes atromanus Haswell, Catal. Austral. Crust. 1882, 
joe AS), alle ie cies, I 
Home Lagoon, Hermite; June 1912; No. 106: 3 2 ovig., 
varying from 8°7 mm. to 13°6 mm. in width. 
PHYMODIUS UNGULATUS (Milne-Edwards). 
For variations, see Phymodius wngulatus Rathbun, Mem. Mus. Comp. Zool. 
vol. xxxv. 1907, p. 46, pls. iti. & iv. 
Monte Bello Islands: 1 9 immature. 
Length of carapace 8 mm., width 11 mm.; width of front, orbital 
angle excluded, 4 mm. 
In this specimen the areoles of the carapace are very much 
subdivided, the lateral marginal lobules obtuse except the last 
which has a very short spinule at the tip, the chelipeds are sub- 
equal, the palms have subparallel margins and acute tubercles, 
the fingers are slightly curved and have a narrow gape. 
