314 STALK-EYED CRUSTACEA 



spines, middle one largest, curved upwards ; lateral ones 

 flattened, triangular. Hepatic regions swollen ; margin of 

 carapace distinct and acute on hepatic region, and on the 

 anterior part of branchial regions. First pair of legs, in 

 female, two and a half times as long as carapace, including 

 the spine, granulated ; fingers very slender, longer than 

 palm, and have three needle-like teeth. Walking legs 

 slender, smooth, those of first pair reaching to the middle 

 of palm ; fourth joint as long as the three terminal joints. 

 Range. — Montserrat, Dominica, Barbados. 



3. Myropsis. 



Myropsis . . . Stimpson. 



The carapace has five posterior spines. There is no 

 median hepatic ridge. Basal joint of external antennae 

 indurated and crested. The anterior extremity of the 

 pterygostomian channels do not reach beyond the orbits. 

 The fingers of the first pair of legs open in a horizontal 

 plane. The outer margin of the external appendage of 

 the external maxillipedes straight. The abdomen of the 

 male is seven-jointed, and all seven segments may be 

 soldered together (Stimpson) ; or only the third to the 

 sixth segments, all included, may be joined together. — 

 (A. Milne Edwards.) 



Range. — West Indian Sea ; in deep water. 



Synopsis of the Species. 



A. Carapace subglobular. — (yM. qninquespinosa.) 



B. Carapace contracted in front. — {M. constricta.) 



I. Myropsis quinquespinosa. 



Myropsis qiiinqiiespinosa . . . Stimpson. 



Body and first pair of legs granulated above and 

 below. Carapace subglobular, regularly convex ; in- 



