STALK-EYED CRUSTACEA 27 



partition, the two lateral being on the extremity of the 

 basal antennal joint. — {E. rasteliifeya.) 



B. Rostrum appears to be composed of four spines, 

 there being no central spine from interantennular 

 partition. 



a. Median and branchial spines present on carapace. 

 — (E. gracilipes.) 



b. No median and branchial spines present on cara- 

 pace, only elevations. — {^E. inennis.) 



I. Euprognatha rastellifera. 



EuprogiiatJia rastellifera . . Stimpson, A. Milne 



Edwards. 



Carapace naked, with the regions well defined, and 

 minutely and irregularly granulated. There are three 

 spines in the middle line : one on the gastric, one on the 

 cardiac, and one on the first ring of the abdomen; there 

 is one similar spine on each branchial region, making a 

 transverse row with the spine on the cardiac region. 

 There are a few small spines on the sides of the 

 branchial, hepatic, and pterygostomian regions. The 

 rostrum has besides its own two horns, a central spine 

 from the interantennular partition, and one on each 

 side from the extremity of the basal joint of external 

 antenna.\ 



The first pair of legs is nearly twice as long as the 

 carapace ; hands swollen ; fingers not gaping. The 

 walking legs have the first pair nearly one-third longer 

 than the legs in front. 



The sternum is regularly granulated, except the 

 concave portion between the first pairs of legs. 



Range. — Martinique, St. Vincent, Grenada, Barba- 

 dos, Santa Cruz ; in deep water. 



