THE GEAPSOID CHADS OP AMEKICA. 



213 



t 



2 



I 



ward the mcrus; merus of ambulatory legs 

 with scarcely a trace of distal tooth; carpus 

 with anterior lobes obsolescent. The antero- 

 lateral teeth are broader, thinner, and more 

 acute than in sica; the areolations of the 

 carapace are more sharply marked and the 

 furrows between them almost smooth; intes- 

 tinal region finely and evenly granulate, not 

 irregularly, as in sica. 



Measurements. Female (station 293) 

 greatest length of carapace 7, width of same 

 9.4, length of second leg 18.7 mm. Ratio of 

 length to width varies from 1 : 1.26 to 1.34. 



Range. Lesser Antilles ; 5G to 138 fathoms. 



Material examined. See table. 



CYMOPOLIA FRAGILIS Rathbun. 



Plate 51, figs. 2 and 3. 



Cvmopolia f ragUis' KATHEUX, Proc. U. S. Nat 

 Mus.. vol. 1C, 1S93, p. 2.19 (type-localities, 

 off Lower California, 58 and 71 fathoms, 

 stations 20S3 and 3011, Albatross; holotype, 

 Cat. No. 17485, U.S.N.M.). FAXOX, Mem. 

 Mus. Cornp. Zoul., vol. IS, 1S95, p. 40, pi. 0, 

 figs. 4, 4o. 



Diagnosis. Four subequal antero-lateral 

 teeth. Carapace half again as wide as long. 

 First ambulatory not reaching beyond merus 

 of second. 



Description. Carapace very broad and not 

 very convex, with four thin-edged antero- 

 lateral teeth besides orbital tooth. Tubercles 

 of carapace very well marked, high, trending 

 forward, and definitely placed (see fig. 129a). 

 Intervening space scantily filled with small 

 inconspicuous granules and short hairs. Two 

 median frontal teeth rownded and separated 

 by a triangular sinus tvith rounded base; 

 lateral sinuses shallower, equally wide, ob- 

 lique; lateral teeth triangular, subacute. 

 Sinuses of supraorbital margin triangular, 

 the outer one rounded behind; middle tooth 

 broad, obliquely truncate; ntxt tooth nar- 

 rower, rounded. Outer orbital teth inclined 

 forward and inward, Outer marg:n convex. 



