218 



BULLETIN 97, UNITED STATES NATIONAL MUSEUM. 



N^ NNJ .N!n' .NSJtS! 



C<-> dcJaodzddu 



Noi - - . . . ^ . . =2 • • - 

 I - -y. oi cr 'ST — :c C — • *^ " 'O o> '^ 



•-1 — ««i-e><o>— wrtHtoesi- 



is 



oo 



00*•oO♦^^JJ^ 



t; :;?C5 



■g^'O'O'O'O'O'o-o'o 



r-rj •OMOOCN- 



<0-P • 1-1 ^ »H m CM 04 N e>» N c< 



ol 



I 00 00 '0000 '00 



oci-^-r :oor ;uf 



:a 





•OX! 



22m 



«3 tctcCOCO'oM'O'O 

 •C o o o in • ej 

 ^ C c c g ; C 



r>.Nooc^o>oa)coooa>o>oi55 



•-I<-|<-IOCS|CS<N<-ICMC>401C4C>4C^ 



.^ OO 'OM WCCIMC ooooo 

 » coco -OOi-l -tOC OMNMCO 



CON . •-* 00 *t- O 't* ^ <-" CD CO CO O 

 C0*0 • C** rr *0 rr Cvl -^ T CO CO ro CO 



1/5U5 •O)iONeM^05O>O5a)05<3> 



1^00 •oci^cocccou7tr:)to*o»o*o 



t-iCO 



oioo 



cmccc^oooooooo 



Ci0C0f-<C^OOi0»0»r3v 



Oi»0<Mr-t^NC«QOO-f 

 C3iO«i-^i-H»-«f-^000*0 



CO OS t~.- 1"^ *0 CO CO CO CO CO c^ 



O C9 



i; K 2 03 c9 s 

 S a " -^ w 

 o ag 



£•£ 





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 pracilis Smith, Proc. 

 U. S. Nat Mus., vol. 6, 18S3, 

 p. 20 (type-locality, off Mar- 

 thas Vineyard, Massachusetts, 

 142 fathoms, station 878, 

 Fish Hawk; Cat. No. 18453, 

 U.S.N.M.). 



I'aUcus gracilis Rathbun, Proc. 

 Biol. Soc. Washington, vol. 11, 

 1807, p. 95. 



Diagnosis. — One lateral tooth. 

 Second leg three and one-half 

 times as long as width of cara- 

 pace. Inner suborbital lobe spini- 

 form, 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 antero- 

 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 



