354 BULLETIN 152, UNITED STATES NATIONAL MUSEUM 



margin arcuate. Last three teeth curved, tips usually all sharp 

 pointed; in the largest specimen the third tooth is rectangular, not 

 pointed. A narrow, subcorneal spine at lower inner angle of orbit, 

 more advanced than upper nner angle but less advanced than front. 

 Adjoining tooth arcuate, more advanced than corresponding lobe 

 above. Outer hiatus V-shaped, of good size. Subhepatic tooth large, 

 elongate, paralleling the antero-lateral border. The outer maxillipeds, 

 as well as the lower surface of carapace and the sternum, are coarsely 

 granulate; the lengthwise groove on the ischium is unusually wide. 



Chelipeds densely granulate. The massive merus has a sharp sub- 

 distal spine. The carpus is very rough, having beside the granulation, 

 numerous lumps of various shapes scattered over its surface; inner 

 spine sharp, conical, sometimes curved. Chelae in old females (we 

 have at hand no old males) moderately unequal. Palm increasing 

 shghtly in height toward the fingers, upper and lower margins a little 

 convex. A gutter runs along the upper surface and is accented by 

 rough granulated tubercles along its edges. Among the closely 

 crowded granules of the outer surface, three raised lines run length- 

 wise through the middle portion from the proximal toward the distal 

 end. The surface in half grown specimens is especially fuzzy, becom- 

 ing less so in the old. Fingers very deeply grooved, light brown in 

 preserved specimens, color not continued on palm; prehensile teeth 

 moderate. Ambulatory legs long and narrow, especially the last two 

 articles. 



Abdomen smooth or nearly so. In the male the sixth segment is 

 broader than long, sides parallel, terminal segment subtriangular. 



Measurements. — Female (17715), total length of carapace 39.3, 

 width of same 57, fronto-orbital width 23.3, width of front 12 mm. 



Variation. — In the very young (7-10 mm. wide) from Florida and 

 Cuba which I refer to this species, although with some reserve, the 

 following characters differ from those of the adult: The median 

 sinus of the front is minute, the first two lateral teeth are similar, 

 subequal, small and triangular, the epigastric crests are longer and 

 more prominent, and the whole surface less hairy. The smallest 

 adult (Santa Catharina) is 19 mm. wide. 



Range. — From Gulf of Mexico to the State of Santa Catharina, 

 Brazil. . 



Material examined. — 



FLORIDA.— North Key section; December 9, 1901; Fish Hawk: 

 Lat. 28° 55' 30" N.; long. 83° 02' 00" W.; 4 fathoms; rky.; tempera- 

 ture 15.3° C; station 7208; 1 female (59953). Lat. 28° 52' 45" N.; 

 long. 83° 07' 00" W.; 5% fathoms; rky.; temp. 16° C; station 7209; 

 1 male (59954). 



Off Charlotte Harbor; lat. 26° 33' N.; long. 83° 10' W.; 28 fathoms; 

 sdy.; April 2, 1901; station 7123, Fish Hawk; 1 very young female 

 (25612). 



