STALK-EYED CRUSTACEA 401 



thin, compressed, and armed with small spines upon the 

 fourth and fifth joint. 



Range. — Barbados, St. Lucia, St. Vincent, east side 

 of Atlantic. 



2. Munida. 



Munida . . Leach, Desmarest, Dana, Bell, Stimpson, 

 Heller, Miers, Henderson, A. Milne 

 Edwards and Bouvier. 



Rostrum slender and styliform, with a well-developed 

 supraorbital spine on either side of its base. Carapace 

 with the surface usually spinulose ; the cardiac area as a 

 rule distinctly circumscribed. First pair and walking legs 

 elongated and slender. One or more of the abdominal 

 segments usually with a series of spinules on the anterior 

 dorsal margin. 



Range. — Tropical and temperate seas ; in shallow 

 and deep water. 



Synopsis of the Species. 



L Eyes large. 



A. No spines on dorsal surface of abdomen. 



a. Lateral spines of rostrum exceed the eyes. — 

 {M. I'ris.) 



b. Lateral spines of rostrum do not exceed the eyes. — 

 i^M. caribcra) 



B. Dorsal surface of abdomen has spines. 



c. Second and third abdominal segments have small 

 spines. Lateral spines of rostrum nearly as long as 

 eyes. — {M. vtiles.) 



d. Second and third abdominal segment have spines, 

 and the first segment has four spines. Lateral spines of 

 rostrum exceed the eye. — (^M. constricta?) 



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