II* 



Jfcbn*r ^ Jourru ... P . r : * enn g ..sjaL-Arts , XLII. July,-!t$W^ — 



188 S. I. Smith on new Crustacea from N. America. 



No. ll--Descriptions of a new genus ^.nd two new 

 species of Scyllaridae and & new species of /ethra 

 from North America; by Sidney I. Smith. 



Evibacus, gen. nov. 

 Carapax very broad; lateral border expanded, inci- 

 sion at the cervical suture closed, and the margin 

 behind it not incised. Rostrum broader than long, 

 very slightly bilobed. Eyes situ- 



