110 BULLETIN OF THE 



Pyromaia cuspidata nov. sp. 



Body and feet naked. Carapax granulated, with the regions well 

 defined, tumid, and armed with short spines. Rostrum trigonal, with the 

 three edges (the superior and two lateral) armed with minute spines. 

 Basal joint of external antennae with a slender spine in front, and a 

 smaller one beneath; the latter pointing directly downward. Chelipeds 

 with the meros-joint spinous below and with a spine at the summit ; carpus 

 with one spine on the outer side at the articulation of the hand; hand 

 inconspicuously spinulose, fingers longer than the palm, not gaping, 

 serrated, and acuminate. Ambulatory feet with cylindrical joints; in the 

 adult female smooth and naked ; in the young male sparsely and incon- 

 spicuously hairy; dactyli two thirds as long as the penult joint, and flat- 

 tened toward the extremities. 



The dimensions of the largest specimen, a female, are as follows: 

 Length of the carapax, 1.2 inch; greatest breadth, 94 inch; proportion 

 of breadth to length, 1 : l."28. Length of ambulatory feet of the first pair. 

 3.05 inch. 



This species lives in deep water, with a range of from 82 to 125 fathoms, 

 as shown by the following table of localities, etc., taken from the notes of 

 the expedition. 



Off Sand Key, May 11,1 868. 



Off Alligator Reef, May 8,1809. 

 Off the Samboes, May 9,1868. 

 Off the Samboes, May 9,1868. 

 S. W. of Sand Key, February 17, 1869. Cast No. 2. 125 " 



Subfamily ITSINAE. 

 Pisa antilocapra nov. sp. 

 Carapax subovate, rather narrow, pubescent, and spinous, with a strong, 

 acute spine on the hepatic region, seven to ten smaller, subequal ones on 

 the branchial, and four, forming a rhomb, on the intestinal region. A few 

 sharp tubercles on the cardiac and gastric regions. Rostrum horizontal, 

 equalling in length more than one third the post-frontal length of the 

 carapax; horns diverging from the basal third, rather slender, acute, and 

 straight, or slightly curved inward near the extremities. Prseorbital spine 

 slender, less than one third as long as the rostrum. On the superior mar- 

 gin of the orbit there are two spiniform teeth between the base of the 

 praeorbital spine and the external angle, which is also acute. Spine of the 

 basal joint of the external antenna? much smaller than the prseorbital 

 spine. Feet pubescent, with the. meros-joint s sparsely Bpinose above. 

 Dactyli of the ambulatory feet unarmed on the inferior edge. 



