THE SPIDER CRABS OF AMERICA 



275 



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genus but from all other spider 

 crabs. The outer angle of the 

 merus of the third maxilliped is 

 more arcuate than in coarctatus. 

 The tubercles of the chelipeds 

 are stronger than in coarctatus 

 and the manus has the upper 

 margin tuberculate for two-thirds 

 of its length. The manus of well 

 developed males is longer in pro- 

 portion to its width than in the 

 preceding species. 



Color. — Dull pinkish red. 



Measurements. — Male (5872), 

 length of carapace 105, width 80 

 mm. 



Range. — Bering Sea, from a line 

 connecting Bering Island, Com- 

 mander Islands, Siberia, with 

 Pribilof Islands and Bristol Bay, 

 Alaska (greatest lat. 58° 38' 30" 

 N.), southward along the shores 

 of the Aleutian Islands, thence 

 eastward and southward to Ad- 

 "miralty Inlet, Washington (about 

 lat. 48° N.). Depth, 5 to 350 

 fathoms. 



Material examined. — See table, 

 pages 271-275. 



Genus PELIA Bell 



Pelia Bell, Proc. Zool. Soc. 



London, vol. 3, 1835 (1836), p. 



170; type, P. pulchella Bell; 



Trans. Zool. Soc. London, vol. 2, 



1836, p. 44. 

 Carapace pyriform, swollen, 

 especially the gastric and cardiac 

 regions, smooth or nearly so, and 

 covered with a thin coating of 

 short, soft hair; lateral margins 

 entire. Hostrum well developed, 

 divided for half or more of its 

 length into two acute diver- 

 gent horns. The outer margins 

 of the supraocular eaves 

 converge anteriorlv and 



