124 STALK-EYED CRUSTACEA 



I. Medaeus spinimanus. 



Medians spinimanus . . A. Milne Edwards, Miers. 

 Cancer miniatiis .... Desbonne and Schramm. 

 Cancer spininiauus . . . II. Milne Edwards. 



The carapace is smooth, slightly swollen, subhexagonal, 

 strongly lobulated, especially in front ; all the projecting 

 parts are granular ; the grooves are smooth. The front is 

 less advanced upon the sides than in the middle line, 

 where it is traversed by a straight fissure, very visible 

 below where it terminates at the epistomian point. The 

 orbits are circular ; their inferior internal angle exceeds 

 the basal antennal joint. The antero-lateral border is cut 

 into four triangular teeth, joined the one to the other by 

 a small granular or spinous ridge ; the first tooth is the 

 smallest, it is placed below the external orbital angle. 



The pterygostomian regions, the external maxillipedes, 

 and the sternal plastron are granular. The legs of the 

 first pair are short; the fourth joint does not exceed the 

 edge of the carapace ; it is covered below with granulations. 

 The fifth joint has a few tubercles at its internal angle ; it 

 is rough and granular above and outside. The hand is 

 surmounted by a crest cut into five large teeth ; it has on 

 the outside raspberry-like tubercles, with numerous con- 

 fluent and irregular granulations between the tubercles ; 

 the movable finger has above an elevated ridge not toothed. 

 The walking legs are long, covered with granulations or 

 spines, and with a i^w hairs on the last joint. 



The abdomen of the male is narrow ; its first segments 

 are granular, the last are smooth. 



The colour is yellow-grey spotted with red ; the first 

 pair of legs vermilion-red, and the fingers of the pincers 

 brown. 



Range. — Barbados, Guadaloupe. 



