MUSEUM OF COMPARATIVE ZOOLOGY. 177 



the surrounding parts ; its anterior margin is denticulated, with a larger spine 

 on each side. The lateral margins of the carapace are armed with ten or 

 eleven spines, the one on the antero-lateral angle being the longest. The 

 second abdominal segment is ornamented with a transverse row of eight small 

 spines. The other abdominal segments are normally destitute of spines, 

 but in a few of the many specimens before me there are two or four small 

 spinules on the third segment. The pleurae of the third, fourth, and sixth 

 abdominal segments are acute, the rest blunt. The eyes are large, and are 

 provided with rather long cilia on the edge of the cornea. The basal joint 

 of the antenna is armed with a long and sharp spine which reaches forward 

 beyond the eyes ; the second joint also has a long spine on each side. The 

 chelipeds are long and hairy ; the merus, carpus, and basal part of the pro- 

 podus are spiny, the ringers long, slender, the cutting edges straight and 

 finely spinnlose. The ambulatory appendages are setose, the upper and lower 

 edges of the merus are spinulose and there is, moreover, a row of spinules on 

 the outer surface, this external line of spinules being best developed on the 

 proximal end of the segment. The carpus is armed with small spines on the 

 upper margin, and one spine on the distal end of the lower margin ; the penul- 

 timate and terminal joints are unarmed. 



Length, 65 mm.; length of carapace, 34.5 mm.; breadth of carapace between 

 epimeral sntures, 21 mm.; length of rostrum, 11 mm., length of cheliped, 

 84 mm., merus, 26 mm., carpus, 10 mm., basal portion of chela, 18 mm., 

 dactylus, 21 mm. 



Station 3389. 210 fathoms. 2 males, 7 females. 

 " 3355. 182 " 5 young. 



Munida refulgens, sp. nov. 



In this species the setae on the ridges of the thorax and abdomen and on the 

 legs are resplendent with iridescent hues. The rostrum is long, triangular in 

 cross section, the upper surface scabrous, the lateral margins armed with two to 

 four spines which are generally placed unsymmetrically on the two sides. The 

 supra-ocular spines are short. There is a transverse line of spinules back of 

 the base of the rostrum, the two which lie on either side of the median line 

 being larger than the others. Seven marginal spines on each side of the 

 carapace, the ones at the antero-lateral angles the largest. There are no spines 

 on the abdominal segments. The abdominal pleurae are acute. The basal 

 joint of the antenna has a plate-like expansion, but is not spinose ; the second 

 joint is furnished with an external spine. Chelipeds very long, squamose, and 

 clothed with silky setae ; the merus has a row of spines on the upper margin, 

 another on the inner side, and a row of smaller ones on the outer side ; the 

 carpus is provided with three or four spinules at the distal end ; the chela 

 is slender, the outer finger flattened, ribbed above, the outer edge rather 

 convex and expanded toward the base; cutting edges of fingers finely denticu- 



