MUSEUM OF COMPARATIVE ZOOLOGY, 173 
legs differs from the posterior pair in having the dactylus and propodus a little 
shorter, and the lower edge of the merus more hairy and minutely spinulose. 
The telson is deeply cut by a broad median notch in its hind margin into two 
lobes, the left of which is the larger. The margins of both lobes are spinose. 
There is (in the alcoholic specimens) a narrow red ring around both fingers 
near their tips, a broader band of the same color around the base of the fingers, 
and a red patch on the inner side of the anterior face of the hand. 
Length of carapace, 6.5 mm. ; greatest breadth of carapace, 6 mm. ; length of 
ocular peduncles, 2.3 mm, 
Station 3368. 66 fathoms. 1 male. 
Ihamadt dus Bit 1 male. 
This species, like S. ris A. M. Edw., is characterized by the spiny armature 
of the chelipeds. It differs from S. imis by having a smaller number of spines 
upon the anterior face of the chela, and in their arrangement in a few definite 
longitudinal rows, the surface between the rows being spineless and reticu- 
lated. The chela does not display the lively iridescence so striking in Milne 
Edwards’s species, nor are the ophthalmic scales bidentate at the end. The 
merus of the third maxilliped is not armed with a distal spine, as in S. iris. 
Paguristes fecundus, sp. nov. 
The anterior or gastric section of the carapace is smooth in the central and 
hinder parts, rugose near the front, and tuberculose in the antero-lateral region, 
where a few of the tubercles assume a spiny form; from the tubercular surface 
spring long slender sete. The anterior margin of the carapace is produced in 
the median line so as to form an acute triangular rostrum, which projects be- 
yond the subacute lateral processes ; between the rostrum and the lateral pro- 
cesses the anterior border is concave and thickened so as to form a rim. The 
anterior gastric lobes are clearly defined anteriorly. 
The ocular peduncles are long and cylindrical, reaching considerably beyond 
the antennal peduncle, but not quite so far as the antennulary peduncle. The 
ophthalmic scales are of moderate size and bidentate at the tip, the external tooth 
very minute. The antennal acicle reaches almost to the end of the peduncle ; 
it is setose, and armed with six spines, two of which form a terminal fork, 
the others being marginal. The external prolongation of the second antennal 
segment is narrow, setose, and minutely spinulose; there is, moreover, a 
spinule on the upper face of this segment behind the base of the acicle ; the 
antennal flagellum is very short (about equal in length to the anterior section 
of the carapace). The third pair of maxillipeds are closely approximated at the 
base; their merus joints are armed with three or four denticles on the lower 
margin, and one at the distal end of the upper margin. 
The chelipeds are short and of like size and shape; the merus is smooth 
within, rugose without; the two inferior margins are armed with minute 
black-tipped spinules. The carpus is tomentose and spinulose, the largest 
