CO^GBYLIA—DITHYRA. 26. 97 



PsAMMOBiA testa oblonga, latere antico bifaridm striata, dentc altera strigilata. 



obliquo laminari. 

 Shell oblong, striate in two directions on the anterior side, with one 

 of the teeth oblique and laminar. 



Tab. nost, 6, fig. 13. 

 Solen strigilatus. Linn. Syst. Nat. p. 1115. 

 Gmelin, Syst. p. 3225. 

 Turton, Linn. Syst. iv. p. 181. 

 Chemnitz, vi. p. 57, tab. 6, fig. 41-44. 

 Wood, Conch, p. 127- tab. 30, fig. 1. 

 Dillwyn, Descript. Catal. p. 64. 

 Turton, Conch. Diet. p. 161, fig. 53. 

 Chama angusta. Lister, Conch, tab. 416, fig. 260. 

 Mus. nost. Dredged in Torbay : and we observed a small specimen 

 among the shells collected by General Bingham, in his late visit 

 to Cornwall. 



Shell an inch long and two broad, of an oblong shape becoming a 

 little narrower at the anterior extremity, yellowish-white with a 

 slight rosy tinge, but without the longitudinal stripes observed in 

 foreign specimens : the front margin running in a straight line 

 without contraction in the middle : the anterior side marked with 

 about thirty longitudinal striag radiating from the hinge in an oblique 

 direction so as to cover three fourths of the surface, and becoming 

 gradually more distant as they recede towards the opposite extrem- 

 ity ; and at the termination of the striated side are other raised 

 oblique striae passing in an opposite direction : hinge central, with 

 two teeth in each valve, one of which is very oblique and laminar, 







