THE CANCROID CRABS OF AMERICA 



539 



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Merus of outer maxillipeds pro- 

 duced obliquely forward and out- 

 ward. Outer aspect of chelipeds 

 densely hairy, hairs longer than 

 the pubescence of the carapace 

 and extending over the base of the 

 dactylus and all but the tip of the 

 propodal finger. When the hairs 

 are removed, four or five rows of 

 tubercles are visible but less regu- 

 lar than in the above species and 

 interspersed on the distal portion 

 including bases of fingers with 

 closely placed tubercles. No large 

 tubercle on outside of propodal 

 finger. Three large tubercles on 

 upper margin of palm, the first two 

 subequal and subacute, the third 

 or most distal very much larger, 

 broadly rounded, domelike. Last 

 three articles of ambulatory legs 

 as well as sternum and abdomen 

 densely haiiy. 



Measurements. — Male, station 

 30, length of carapace 14.8, width 

 of same 17.4 mm. 



Range. — Florida Straits; Barba- 

 dos (A. Milne Edwards). 70 to 

 304 fathoms. 



Material examined. — See table 

 on this page. 



Genus OZIUS Milne Edwards 



Ozius Milne Edwards, Hist. Nat. 

 Crust., vol. 1, 1834, p. 404; type, 0. 

 tuberculosus Milne Edwards. 



Carapace broad, transversely 

 oblate-oval, moderately convex 

 fore and aft, slightly convex or 

 nearly flat from side to side; the 

 regions, except gastric, little de- 

 fined; the surface smooth or 

 granular, often rugose anteiiorly. 

 Antero-lateral borders of good 

 length, strongly arched, usually 



