THE GBAPSOID CKABS OP AMEBICA. 221 



CTMOPOLIA GRACILIPES A. Milne Edwards. 

 Plate 52, flgs. 3 and 4. 



CymopoUa gracilipcs A. JIilne Edwards, Bull. Mus. Comp. Zool., vol. 8, 



ISSO, p. 20 (typo-localities, lat. 23° 13' N. ; Ions. SO" 10' W., 84 fathoms; 



Jlontsemit, 298 fatlioins; Grenade, 92 fathoms). 

 Palictis (jracilipcs Rathbun, Proc. Biol. Soc. Washington, vol. 11, 1897, 



p. 94. — A. Milne Edwards and Bouvier, Mem. Mus. Comp. Zoul., vol. 



27, 1902. p. 59, pi. 11, figs. 10-14 (type specified, female, lat. 23° 13' N.; 



long. 89° IC W., 84 fathoms; Cat. No. G497, M. C. Z.). 



Diagnosis. — Lateral lobes of front not developed. One antero- 

 lateral tooth. Second leg between two and one-half and three times 

 width of carapace. Inner suborbital lobe prominent, bilobed. Two 

 triangular prominences on third segment and one on fourth segment 

 of male abdomen. 



Description. — Carapace very wide behind, ornamented with few 

 but prominent tubercles; the most prominent are the two large car- 

 diac tubercles, side by side, separated by a deep furrow, and a cluster 

 of six or eight smaller tubercles on the posterior branchial area; sur- 

 face minutely granulated. Fronto-orbital margin less prominent 

 ond less deeply cut than in any other species; median sinus equi- 

 laterally triangular, median teeth tubcrculiform, lateral lobes almost 

 obsolete. Preorbital lobe little developed, concealing but a small 

 part of eyestalk. Supra-orbital lobes very shallow, rounded, inner 

 twice as wide as outer, inner and middle sinuses V-shaped, outer sinus 

 a shallow bay. Outer tooth of orbit very short, not reaching middle 

 of cornea. Only one antero-lateral tooth and that on the branchial 

 region just in front of widest part of carapace; tooth thick, obtuse, 

 prominent; behind it a groove runs parallel to postcro-lateral mar- 

 gin. Outer lobe of suborbital margin shallow, triangular, blunt, 

 separated from exorbital tooth by a broad, shallow sinus, and by a 

 deeper sinus from the long inner lobe, which has a sinuous outer 

 margin and at the extremity is divided into two subequal lobes, 

 visible from above, the inner lobe more advanced and on a higher 

 level. The rounded pterygostomian lobe does not conceal tho 

 extremity nor the outer portion of the inner orbital lobe. 



Chelipeds equal and slender in both sexes, nearly smooth; fingers 

 more filiform than usual, crossing far behind the tips; dactylus much 

 curved, exceeding the fixed finger, each armed distally on prehensile 

 edge with a few, small, distant teeth. 



The first leg reaches beyond carpus of second, the third beyond 

 propodus of second, the second is between two and one-half and 

 three times width of carapace; legs without protuberances, mcrus 

 joints strongly narrowed distally and moderately roughened, pro- 

 podal joints widening very slightly toward distal end, dactyli sinuous 

 on posterior margin. 



