3894. rROCEEDINGS OF THE NATIONAL MUSEUM. 481 



SO large and swollen as in the Atlantic species. Tlie rostrum is of the 

 same character as in L. goodei. The chelipeds are much the same, but 

 the fingers are a little more slender and the tubercles on the ijrehensile 

 edges of the right hand are much smaller. The ambulatory feet have 

 a few spines twelve mm. in length on the carpal and propodal segments. 

 One of the largest spines of the ambulatory feet projects from the 

 ischium, while the spines of the coxal Joints alone are sufficient to dis- 

 tinguish this species from any other species of Lithodes that I have seen. 

 These spines project from the distal lower margin and vary from eight 

 t) eleven mm. in length. 



The numerous young taken at station 2788 are similar to the adult, 

 except that where spines are barely indicated in the adult there are 

 short sliarp spines in the young. 



LITHODKS .E(.,)UISPINUS, new species. 



Carapace, rostrum, chelipeds, and ambulatory legs with conical 

 spines subequal in length. The range in length is from about four to 

 six ram. The longest spines of the carai)ace are scattered along the 

 lateral margins; the longest spines of thecheliped are at the inner distal 

 margin of the merus and the spines on the middle point of the inner 

 margin of the cai-pal segment. The areolations of the carapace are 

 well marked, but not so bold as in some species. The rostrum is on a 

 line continuous with the gastric region, and consequently a little 

 depressed. A line of seven spines runs along the median line of the 

 gastric region to near the bifurcate ti^) of the rostrum. The two spines 

 on the rostrum are larger than those of the gastric region. The ros- 

 trum is armed with nine spines, arranged as follows: Two on each side, 

 two above, two at the end forming the bifurcate tip, and the lower spine 

 or horn, which is the largest spine on the species. 



Locality. — Bering >Sea, stations 333li, 3480, and 3502; 184 to 406 

 fathoms. 



Type.—lso. 18528, U.S.N.M.; station 3332; 400 iathoms. . 



LITHODES COUESI, new species. 



This species reminds one of L. maia. The largest spines of the cara- 

 pace are arranged about the margin ; they are slender and sharp. The 

 longest are situated at the outer orbital angles, the antennal angles, 

 the hepatic regions, and three on the margin of the branchial regions. 

 The spines on the intervening spaces of the margin are more numerous 

 and much smaller. The surftice of the carapace is set with short, sharp, 

 conical spines. The gastric region is swollen and well defined. Tlie 

 cardiac region is barely indicated between the contluent branchial 

 regions. The depression between the gastric and cardiac regions is 

 very deep. The rostrum is 20 mm. long, and made up as in L. maia, 

 but the terminal porti(Ui beyond the distal lateral branches is slender 

 and bifid rather than bifurcate, as in L. maia; the basal branches are 

 Proc, N. M, 94 31 



