86 CRUSTACEA FROM THE BAHAMAS 



peculiar scutellar area on the third abdominal segment. This feature 

 seems to correspond to a triangular but less prominent area on the 

 similar segment in S. hispidus which is prolonged into a smooth dorsal 

 ridge on the next segment. 



Telson lance-shaped, with a double row of spines between which is 

 a longitudinal groove about as long as the uropodal lamellae, which are 

 finely serrated on their margins, and, as the telson, fringed with stiff 

 hairs. 



Eyes on short peduncles which are armed above with three short 

 spines projecting over the cornea, and with a few spines at the anterior 

 margin. Cornea (in alcoholic specimen) bluish black. Inner anten- 

 nas ; peduncle with a few weak spines at distal end of segments. Outer 

 antennas; peduncles with strong, forwardly projecting spines. Scale 

 lined on inner margin with long closely set hairs and prolonged into a 

 ciliated bristle. Flagella more than twice the length of body. Third 

 maxillipedes, when extended, reach a little farther than extremity of 

 rostrum; the three distal segments about equal in length. 



First pair pereiopods wanting in my specimen. Second pair 

 slender, chelate, segments of equal length. Third pair of similar pro- 

 portions to those in S. hispidus; chelae 7 mm. long; propodos laterally 

 compressed and somewhat triangular in cross section, broad above; 

 on the dorsal margin a double row of eleven spines each, on the ventral 

 margin a single row of nine spines ; two or three rows of minute spines 

 on lateral surfaces. A number of long soft hairs over the fingers, 

 especially at the tips. Hands of the two chelapods similar in size. Car- 

 pus and ischium together about equal to propodos, each armed with 

 rows of spines. Fourth pair long and slender ; dactyl us bifid ; propodos 

 slightly spiny, one-half length of carpus. Carpus and propodos ob- 

 scurely articulated. Fifth pair pereiopods undeveloped. Pleopods 

 biramous, except first, with two or three spines each on the protopodite. 



From the single specimen at my disposal I would compare this 

 species with S. hispidus as follows: rostrum proportionately longer, 

 nearly one-half length of cephalo-thorax, in n.sp. (J in hispidus), longer 

 than peduncle of inner antennae. Six ventral teeth (hispidus none), no 

 lateral teeth, single dorsal row of ten teeth (hispidus six). Flagella 

 of outer antennae fully twice the length of body; proportion 2 : 1 for 

 n. sp., 7:5 for hispidus. Tergum of third abdominal segment with 

 shield-shaped area. Third maxillipedes proportionately shorter than 



