BULLETIN OF THE 
Uroptychus nitidus occidentalis, subsp. nov. 
Differs from the typical Uroptychus nitidus (A. M. Edw.)! as follows: the 
branchial regions are more swollen, giving to the posterior half of the carapace 
a more convex lateral outline; the rostrum is shorter, the chelipeds shorter 
and more robust, the fingers shorter in proportion to the length of the basal 
part of the propodus ; the branchial regions are more distinctly margined. 
It approaches in some respects U. uncifer (A. M. Edw.), in which the rostrum 
and chelipeds are still shorter. In some specimens of occidentalis there are a 
few low tubercles on the inner side of the proximal end of the merus and 
ischium of the chelipeds, — a condition similar to that in U. australis Hend. 
which may be considered a variety of U. nitidus. U. politus Hend., another 
closely related form, is distinguished by its short antennal acicle. 
Length of body of a female, 29 mm. ; length of carapace, 15 mm. ; length 
of rostrum, 4 mm. ; breadth of carapace between antero-lateral spines, 5 mm. ; 
breadth across the branchial region, 10 mm. ; length of cheliped, 44.5 mm. ; 
merus, 11 mm. ; carpus, 12.5 mm. ; chela, 17.5 mm. ; dactylus, 6 mm. 
Station 3384. 458 fathoms. 2 males, 2 females ovig. 
Uroptychus pubescens, sp. nov. 
Carapace, without including rostrum, broader than long, pubescent; a 
transverse row of spines across the gastric region from one side of the carapace 
to the other; lateral border of carapace spinulose ; the anterior margin has a 
deep concavity above the eye, outer angle of the concavity armed with a spine. 
Rostrum one half as long as the rest of the carapace, bent downward a little, 
acute, with entire setiferous margins. Eye small, not broader than the eye- 
stalk, with brown pigment, Abdomen naked, smooth, pleure subacute, 
Antenne equal in length to the carapace with the rostrum ; acicle shorter than 
the peduncle. Chelipeds long, all the joints as far as the fingers spinulose, the 
spinules with broad bases; propodus not broader than the carpus ; carpus 
equal in length to the basal portion of the propodus ; fingers straight, a slight 
tooth near the base of the dactylus ; the tips of the fingers cross. Meri of am- 
bulatory legs minutely spinulose on the superior margin, distal end of propo- 
dus spiniform on the hind margin, whole hind margin of dactylus armed with 
spines; all the joints of the ambulatory limbs are furnished with long sete. 
Length (female), 44 mm. ; breadth, 17.5 mm. ; length of carapace, 21 mm. ; 
length of rostrum, 7.5 mm.; length of cheliped, 57 mm. ; merus, 12 mm. ; 
carpus, 15 mm. ; chela, 24 mm.; dactylus, 9.3 mm. 
Station 3354. 322 fathoms. 2 females ovig. 
o H80DD- Tags ut 1 female ovig. 
This species is. more nearly related to U. insignis Hend. than to any other 
described snecies. 
1 Bull. Mus. Comp. Zoöl., VIII. 62, 1880, 
