218 



BULLETIN 97, UNITED STATES NATIONAL MUSEUM. 



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Variations. Individuals di fTer 

 in the prominence of the tu- 

 bercles of the carapace, in the 

 bluntness of the lateral teeth, 

 and the distinctness of the lon- 

 gitudinal arrangement of spines 

 on the merus of legs. 



Range. Off Cape Hatteras, 

 North Carolina; from Gulf of 

 Mexico to Florida Straits and 

 Barbados; 107 to 290 fathoms. 



Material examined. See table. 



CYMOPOLIA GRACILIS Smith. 



Plate 50; plate 51, fig. 1. 



Cymopolia {iracilis SMITH, Proc. 

 U. S. Nat Mus., vol. G, 1883, 

 p. 20 (type-locality, off Mar- 

 tlias Vineyard, Massachusetts, 

 142 fathoms, station 878, 

 Fish Haick; Cat. No. 18453, 

 U.S.N.M.). 



Palicus gracilis UATHBUN, Proc. 

 Biol. Soc. Washington, vol. 11, 

 1897, p. 95. 



Diagnosis. One lateral tooth. 

 Second leg three and one-half 

 times as long as width of cara- 

 pace. Inner suborbital lobe spini- 

 i'orm, not visible from above. 



Description. Near C. cursor. 

 Carapace more convex and ante- 

 ro-lateral margins more oblique. 

 Front narrower posteriorly, the 

 upper margin of orbit, therefore, 

 wider; frontal teeth of outer pair 

 shorter, the sinuses between them 

 and the median teeth very shal- 

 low. Upper sinuses of orbit 

 U-shaped, the inner much the 

 widest, the two teeth of subequal 

 size, rounded. Only one anterq- 

 lateral tooth, and that on the 

 branchial region, small and blunt ; 

 a tubercle on hepatic margin. 

 Ridge above posterior margin 

 more irregular and composed of 

 fewer and smaller tubercles. The 



