46 CEABS OF THE FAMILY INACHIDJi—M. J, RATH BUN. vol.xvii. 



tubercle, and there is a granule in front of the angle of the buccal 

 cavity. The rostrum bears four or five slender spines, which jjroject 

 outwardly in an alternate series irom the opposite sides of the lower 

 surface; they are not always apf)arent in small si^ecimens; two of these 

 spines are near together close to the extremity, and sometimes give the 

 rostrum the appearance of being trifld at the extremity. The basal 

 antenual joint has a spine below midway of its length and another at 

 its outer distal angle. The two last segments of the abdomen in the 

 male are coalesced; on the sternum, in front of the abdomen, are 

 two or three spines on either side, which form converging lines parallel 

 to the terminal segment of the abdomen. The second, third, and fourth 

 segments in the female abdomen are very short and about eipial in 

 length; the last three segments are coalesced. The merus of tlie 

 maxilli[)ed is longer and less deeply cut than in A. Milne-Edwards's 

 figure of j\[. forjiculafus ; the first joint of the palpus is also nuich 

 longer. 



Chelipeds in the male stout. The ischium and merus have sharp 

 spines on the outer margin which become obsolete near tlie carpus; 

 they have snuill spines on the inner lower margin, and the merus has 

 one long spine at the end of its upi)er surface. The carpus has a series 

 of sharp spines on its inner and outer margins, and one near each 

 extremity Of its upi)er surface. The manus is broad and inflated, with 

 long spines above, and short ones below interspersed with long hairs. 

 Fingers about as long as the palm; the i)i"ehensile edges are furnished 

 with truncate denticulate teeth except at the extremities, where they 

 become closely fitting triangular teeth. The chelipeds of the female 

 are nuich feebler, the fingers much longer and more gaping, with sharp 

 spines on the prehensile edges. 



Measuretni'iiU (of adult male): — Length of carapace and rostrum, 

 19.5 mm.; length of rostrum, 11 : width, 8.13; length ofcheliped about 21.5. 



Localities. 



Off Cape Hatteras, N. C, hit. 35^^ 08' 30" IS., long. 75' 10' W., 4!) fathoms, gray 



sand, station 25!16; IT. S. Fish Coniinission steamer Albatross, 188.5; 1 female 



with eggs (18068). 

 Off Cape Fear, N. C, lat. 33^ 37' 30" N., long. 77"^ 36' 30" W., 14 lathoms, coarse 



yellow sanil, broken shells, station 2617; 1 male (18069). 

 Middle Sound, near Wilmington, N. C; U. S. Fish Commission, K. E. Earll, 



April 18, 1880; 1 male (4384). 

 Key West, Fla.; U. S. Fish Commission steamer AlbatrosSf Mar. 27, 1886; 1 male 



(11385). 

 Marco, P"'la. ; U. S. Fish Commission schooner Grampus, Feb. 25, 1889; 1 I'emale 



Avith eggs (15323); H. Hemphill, 1885; 1 female with eggs (18070). 

 Charlotte Harbor, Fla.; Union College collection (767) 1 female. 

 Sarasota Bay, Fla. ; Union College collection (687) 4 males, 3 females. 

 West Florida; Henderson and Simpson; Imale, 2 females, 2 yonng (18071). 

 Off Mobile Bay, Ala., lat. 29" 24' 30" N., long. 88° 01' W., 35 fathoms, yellow 



sand, black sjiecks, station 2388; U. S. Fish Commission steamer AlhatroHs, 



1885; 1 male (9695). 



W 



