STALK-EYED CRUSTACEA 149 



wide; the two orbital teeth are prominent. There is a 

 tooth upon the subhepatic region, immediately below the 

 first tooth of the antero-lateral margin. 



The legs of the first pair are short, robust, and spotted 

 with red ; the fourth joint is spiny above. The fingers 

 are short and strong. The three last joints of the walking 

 legs are very spiny and hairy above. 



Range. — West Indies. 



B. TJie endostome zvith distinct longitudinal ridges 

 defining the apertures of the efferent branchial channels. 

 c. The antenna; fiot excluded from the orbit : — 



14. Eurytium. 



Eurytiuni , . . Stimpson, A. Milne Edwards, Miers. 

 Panopeus (part) , H. Milne Edwards. 



Carapace broadly transverse, nearly smooth, and not 

 lobulated on the dorsal surface ; convex longitudinally 

 not transversely. There is a sternal canal through which 

 the deferent canal from the basal joint of the last pair of 

 legs passes to the copulatory appendages. 



Range. — Eastern Atlantic, California. 



I. Eurytium limosum. 



Eurytium limosum . Say, Stimpson, Miers, A. Milne 



Edwards. 

 Cancer limosus . . Say. 

 Panopeus limosus . . H. Milne Edwards, Dekay, 



Gibbes. 



The greatest breadth of carapace is at a level with 

 the last lateral tooth. The regions are very slightly 



