196 BULLETIN OF THB 



Section Euciboa DalL 

 Verticordia (Euciroa) clegantlaslma DalL 



Subgenus PECCHIOLIA Meneghini. 

 Peochiolia argentca MaritL* 



Subgenus HALIRIS DalL 



Hallria Fisoheriana Dall. 



MYTILIMERIA Conrad. 

 Mytilimeria Nuttallii Conrad • 



LYONSIELLA Saw. 

 Lyonsiella insctUpta Jeffreys.* 



Family CUSPIDARIID^. 



CUSPIDARIA Nardr.. 



Subgenus CUSPIDARIA s. s. 



Cnspidarla rostrata Spengler. 



Cuspidaria roatrata (? var.) microrhina Dall. 



Cuapidauia JeSreyal Dall. 



Cuapidarla obeaa Loven. 



Cuspidaria? arouata DalL 



Subgenus CARDIOMYA A. Adams. 



Cardiomya caUfortiica DalL* 

 Cardiomya perroatrata DalL 

 Cardiomya costellata Deshayes. 

 Cardiomya coatellata. var. curta Jeffreys. 

 Cardiomya coatellata, var. corpulenta DalL 

 Cardiomya striata Jeffreys. 



Subgenus LEIOMYA A.Adams. 

 Leiomya adnnoa Ciould.* 



Section Yulcanomta Dali* 

 (? Leiomya) Vnloanomya Smithli Dall.* 



Section Plectodon Carpenter. 

 Iieiomya (Plectodon) scaber Carpenter.* 

 Leiomya (Plectodon) granulata Dall. 

 Leiomya (l^leotodon) granulata, var. velvetina Dall. 



