284 Panama Shells. tellenid^. 



Tellina rubescens Hanley in Sowb. Thes. Conch, p. 242. No. 



38. pi. 60. f. 153. - - - 1846, 



Station. — In sandy mud ; Cuming 1 Hanley. 



Habitat — Panama and Tumbez ; Cuming ! Hanley. 



Tumbez ; Jay. 



Panama ; 0. B. A. I 

 2 specimens were found. 



470. Tellina siliqiia. Nov. sp. 



Shell elongate, subelliptic, very thin, very convex, very in- 

 equilateral ; ventral margin nearly straight ; anterior margin 

 well rounded ; anterior dorsal margin slightly excurved, mode- 

 rately sloping ; posterior dorsal margin straight or concave, 

 sloping to a small subtruncate posterior extremity; flexure 

 great : pure white : with excessively minute concentric striae : 

 beaks acute : ligament small : cardinal teeth small ; lateral teeth 

 wanting. Dr. Gould suggested the very appropriate name 

 which we have adopted. 



Length .7 inch ; height .4 inch ; breadth .3 inch. 



t 



Station. — Unknown. 



Habitat. — Panama ; C. B. A. 1 

 1 specimen was found. 



471.— Tellina simulanis. Nov. sp. 

 Synonymy. 

 Tellina punicea (pars) Hanley in Sowb. Thes. Conch. I. 239. 1846. 



Shell subovate, solid, moderately convex, nearly inequilate- 

 ral; ventral margin slightly excurved; anterior margin well 

 rounded; anterior dorsal margin slightly excurved; poste- 

 rior dorsal margin nearly straight, sloping ; posterior extremity 

 obliquely truncated ; flexure slight: white, more or less deeply 

 tinged with rose color except near the margin and around the 



