84 CRABS FROM THE ANTILLE AN REGION— M. J. RATH BUN. Vol xvii. 



verse linear sulcus. The hepatic region is outlined by a series of 

 depressions. The ridges of the surface are elevated at intervals into 

 rough acute tubercles. Kostrum very broad, arcuate as seen from 

 above, produced downwards at the middle in a small, triangular, dentic- 

 ulate tooth which extends backward to the antennular cavities. Orbits 

 small, circular; eye-peduncles covered with stellar granules, and with 

 a row of 3 or 4 spinules next the cornea on the upper side. Hepatic 

 region with a triangular marginal tooth. Lateral margin of the bran- 

 chial region with about 7 small granulate teeth. Teeth of posterior 

 margin very shallow. Antero-internal angle of the basal antennal joint 

 barely touching the front. Exognathof maxilliped slender; endognath 

 with a longitudinal row of 3 spinules. The pterygostomian groove is 

 continued on the subbranchial regions. The sternum in the male has 

 3 i^rominent ridges on either side of the abdomen, and is deeply hol- 

 lowed at the anterior end. 



Merus of cheliped thick, with short spines on the anterior and upper 

 surfaces. Carpus with 3 spinules on inner margin. The spines of 

 the propodus and dactylus number 5 or C in the lower series and G 

 or 7 in the upper. They are curved inward and directed toward the 

 extremity of the fingers. The fingers are slender, curved imvard, their 

 tips prolonged in sharp spines; the stellar granules are arranged longi- 

 tudinally; prehensile edges armed with fine sharp irregular teeth or 

 spines. The ambulatory legs are. very rough. The meral joints have 

 1 crest above and 2 below. Dactyli short and slender, armed with, sharp 

 spines, and terminating in an acuminate horny tip. 



Measurements. — Length of female, IG mm.; width, 23*5; thickness at 

 epistome, 6; length of cheliped, about 32; length of merus, below, 11; 

 length of propodus, 14. Length of male, 14; width, 20; length of 

 cheliped, about 34; of merus, 12; of propodus, 15. 



Locality.— Of^ Havana, Cuba, in lat. 23^ 10' 42" N., long. 82° 18' 24" 

 W., 67 fathoms, white coral, 2 females (No. 9507, U. S. N. M.) ; and in lat. 

 230 10' 40" N., long. 82° 20' 15" W., 189 fathoms, coral, 1 male (No. 

 9515, U. S. N. M.). 



SOLENOLAMBRUS DECEMSPINOSUS, uew species. 



Closely allied to S.fypicus, Stimpson. Antero-lateral margin convex, 

 area between the gastric ridges narrower than in S. typicus, gastric and 

 cardiac prominences slender spines. There are 8 additional dorsal 

 spines: 2 on each branchial ridge, of which the marginal is the longer, 

 1 at each posterior angle, and 1 on the posterolateral margin midway 

 between the last and the branchial spine. The punctures of the cara- 

 pace are very fine and scattered; in »S'. typicus they are coarse and 

 anteriorly crowded. The sternum (in the male) is smooth in front of 

 the abdomen. The terminal segment of the abdomen is much longer 

 and narrower distally than in S. typicus, its sides deeply concave. The 

 merus of the maxillipeds is narrower and more produced at the antero- 

 external angle than in S. typicus. 



