' THE CANCROID CRABS OF AMERICA 329 



LOPHOPANOPEUS LOBIPES (A. Milne Edwards) 



Plate 155, Figures 3-5 



Neopanope lobipes A. Milne Edwards, Crust. Reg. Mex., 1880, p. 331, pi. 61, 



fig. 3-36 (type-locality, south af Florida, lat. 24° 43' N., long. 83° 25' W.; 



37 fathoms; type in M.C.Z.); Bull. Mus. Comp. Zool., vol. 8, 1880, p. 14 



(locality given as 24° 44' N., 83° 26' W.). 

 Lophopanopeus lobipes Rathbun, Bull. Labor. Nat. Hist. State Univ. Iowa, vol. 4, 



1898, p. 272. — A. Milne Edwards and Botjvier, Mem. Mus. Comp. Zool., 



vol. 47, 1923, p. 327. 



Diagnosis. — Lobes of front oblique. A tooth at middle of upper 

 orbital margin. First two antero-lateral teeth fused. Palms almost 

 entirely smooth to naked eye. 



Description. — Regional furrows and areolations well marked; the 

 prominent parts of the lobes are covered with very fine granulation, 

 which is lacking on the cardiac region and the urogastric lobe. Frontal 

 lobes oblique, separated by a small rounded median sinus; a slight 

 lobe at outer angles. Orbits large, having on the upper margin an 

 inner and a median tooth. Outer 

 orbital or first antero-lateral tooth 

 small, coalesced with the second, lobi- 

 form tooth, forming a single oblong 

 or truncate tooth. Remaining teeth 

 large, triangular, sharp, margin thick, 

 the third tooth broadest and further 

 from the fourth than the fourth from figure 5o.-lophopanopeus lobipes, fe- 



the fifth MALE, Key West (Mus. S. U. I.), caba- 



_^ ' , PACE 5.6 MM. WIDE 



(Jhelipeds very unequal; suriace 

 covered with fine crowded pearly granules forming reticulating ridges. 

 Major palm very swollen, rugose above, where it is marked with one 

 or two inconspicuous, longitudinal furrows; outer face almost com- 

 pletely smooth to the naked eye; fingers large and brown, color 

 encroaching but little on the palm, where it ends in an oblique, wavy 

 line. Minor chela slender and feeble; fingers comparatively much 

 longer, its color extending much further back on the palm. Fingers 

 of both chelae meeting when closed. Color of fingers in female less 

 extensive than in male. Merus of ambulatory legs feebly granulate 

 above; carpus laterally compressed, its upper border bilobed except in 

 the last leg where there is a single lobe. 



Measurements. — Ovigerous female (S.U.I. ), length of carapace 4.3, 

 width 5.6 mm. Male type, length of carapace 4, width 5 mm. 



Range. — Bahama Banks; Straits of Florida. 



Material examined. — Bahama Banks; May 18, 1893; State Univer- 

 sity of Iowa Expedition; 1 young (Mus. S.U.I. ). 



Off Key West; shallow water; station 46; State University of Iowa 

 Expedition; 1 ovigerous female (Mus. S.U.I. ). 



