48 CONCHOLOGY. 



FAMILY VIII. 



NxMPHACEA. Ten Genera. 



This family is divided into N. Solenaria and N. Tellinaria, 

 from their resemblance to the Solen arid Teliina. 



N. Solenaria. Three genera. 



1. Genus Sanguinolaria. PI. VII. 

 Jlnimal. Unknown. 



Shell. Oval, compressed, a little elongated, gaping but little, 

 equivalve, subequilateral, rounded at both extremities; no mark 

 of posterior keel ; summits feebly marked ; hinge formed by one 

 or two contiguous cardinal teeth upon each valve ; ligament pro- 

 jecting, two round muscular impressions, distant and joined by a 

 narrow palleal impression strongly sinuous behind. Inhabits the 

 sea at Jamaica and shores of America. Nine species. 



Sanguinolaria occidens. Sanguinolaria livida. 



S. rosea. S. rugosa. 



S. alba. 



S. fusca.* S. Nuttallii.* 



S. lusoria.* S. Californiana.* 



2. Genus Psammohia. PI. VII. 



Animal. Unknown. 



Resembling the Teliina, from which it was taken, but not 

 having an irregular plait on the anterior part. 



Shell. Transverse, oblong-ovate, or elliptical, flattened, slightly 

 gaping at one side; summits projecting; hinge formed by two 

 primary teeth in the left valve, and one in the opposite one 

 Inhabits the European and American seas. Twenty-one species.' 

 Psammobia virgata. Psammobia alba. 



P. ferroensis. P. Cayennensis. 



P. vespnrtina. P. Isevigata. 



P. muculosa. P. Tellinella. 



