TELLINAD^. 



59 



Animal with very long siphons; palps large, 

 triangular. 



S. piperata. Fig. 81 ; l- n. s. 



Syndosmya (Recluz). Shell small, oval, white, 

 shining ; hinder side the shorter ; beaks directed 

 backward ; hinge-teeth wanting or minute, laterals 

 distinct ; pallial sinus wide, shallow. 



S. alba. Fig. 82 ; 71. s., and hinge ma^. 

 intermedia, 

 prismatica. 

 tenuis. 



Psammohia (Lamk.). Shell oblong, smooth, or 

 striated radiately ; covered with a thin epidermis ; 

 hinge-teeth f ; pallial sinus deep, reducing the 

 front to a line. 



P. vespertina. 



Ferroensis. Fig. 83 ; | «. 5. 



tellinella. 



costulata. 



^^^ 



83 



84 



Diodonta (Deshajes). Shell convex, with scale- 

 like lines of growth ; no epidermis ; hinge-teeth f? 

 the single tooth cleft. Animal with a small foot ; 

 siphons long, fringed. 



D, fragilis. Fig. 84 ; n. s. 



TelUna (Linn.). Shell rounded in front, angu- 

 lar, and slightly folded behind ; teeth hh\', the 



