STALK-EYED CRUSTACEA 303 



Range. — Mediterranean Sea, Seas of India, Seas of 

 Australia, Mexico, California, West Indies, West Africa, 

 Cape of Good Hope. 



Synopsis of the Species. 



A. Latero-posterior expansions of the carapace hardly 

 extend beyond the antero-lateral border. — {C. angustata.) 



B. Latero-posterior expansions of the carapace extend 

 beyond the antero-lateral border. 



a. Front entire and triangular. — {C. gallus^ 



b. Front deeply notched in the middle. — <yC. 

 marmorata^ 



I. Calappa angustata. 



Calappa angustata .... A. Milne Edwards. 



The carapace is straight behind ; the latero-posterior 

 expansions scarcely extend farther outwards than the 

 latero-anterior border. The edges are finely granular ; 

 the expansions are toothed, and they are united to the 

 posterior border by a slightly cut oblique line. The front 

 is deeply notched in the middle line, and when viewed 

 from above looks two-lobed. The surface of the carapace 

 is covered with protuberances. 



Range. — Grenada, Barbados, Santa Cruz ; in deep 

 water. 



2. Calappa gallus. 



Calappa gallus . . H. Milne Edwards, Dana, Miers, 



Capello. 

 Calappa galloides . Stimpson. 

 Gallus gallus . . . De Haan. 

 Cancer gallus , . . Herbst. 



Carapace very elevated, and covered with large un- 

 equal tubercles. Front entire and triangular. Teeth of 



