THE CANCROID CRABS OF AMERICA 395 



HEXAPANOPEUS PAULENSIS, new species 



Plate 170, Figures 5 and 6 



Type-locality. — Santos, Sao Paulo, Brazil; received from Museu 

 Paulista; male holotype (Cat. No. 61136, U.S.N.M.). 



Diagnosis. — Carapace with short transverse lines of single granules. 

 Wrists tuberculate. Fingers deeply grooved, the color of the im- 

 movable finger continued moderately back on palm. Sixth abdom- 

 inal segment of male abdomen broader than long. 



Description. — About 12 transverse granulated lines on gastric, 

 cardiac and branchial regions; epigastric and frontal lobes prominent. 

 Edge of front thin, arcuate, with a small median V-notch and a 

 small slightly projecting lobule at outer end. Supra-orbital border 

 arcuate between the two emarginations. Outer tooth small, next 

 or second tooth of antero-lateral margin larger, broad and shallow, 

 with arcuate outer margin; third tooth with nearly straight margin 

 directed inward and forward; fourth and fifth teeth acute and prom- 

 inent; there may be a small denticle in the first, second, or third 

 sinus. Inner suborbital tooth large, further advanced than the 

 supra-orbital angle but less than the outer angle of the front. On 

 the subhepatic region a raised line of granules. 



The chelipeds are distinguished from others of the genus by the 

 roughness of wrist and upper part of palm. The wrist has about 15 

 tubercles irregular in size and distribution; besides the customary 

 tooth at the inner angle, there is below it a very small but plainly 

 marked tooth or denticle; distal groove deep. Manus with a superior 

 groove, also one on the outer surface just below the upper edge; the 

 two ridges thus formed each have 4 or 5 low ill-defined tubercles. 

 Fingers deeply grooved, tips light, remainder horn color, the color 

 of the immovable finger continued a little on the palm and ending 

 in an oblique line. Of the abdominal segments of the male the last 

 two are broader than long, the terminal segment subtriangular, its 

 proximal margin arching toward the sixth segment. 



Measurements. — Male, holotype, length of carapace 7, width of same 

 9.6, fronto-orbital width 5.6, width of front 2.9 mm. 



Range. — State of Sao Paulo, Brazil. 



Material examined. — 



Villa Bella, Bha Sao Sebastiao, Sao Paulo; September 19, 1925; 

 W. L. Schmitt; 1 male, 2 ovigerous females (61137). 



Santos, Sao Paulo; 3 males, 2 females (61136) from Museu Paulista; 

 3 males, 3 females (Mus. Paulista, 1011). 



HEXAPANOPEUS NICARAGUENSIS Rathbun, new combination 



Lophopanopeus nicaraguensis Rathbun, Proc. Biol. Soc. Washington, vol. 17, 

 1904, p. 162 (type-locality, Realejo, west coast of Nicaragua; type in Copen- 

 hagen Mus.). 



