CO^CHYLW—DIl'HYRA. 25. ^ 



Da Costa, Brit. Conch, p. 237. 



Chemnilx, vi. p. 46, tab. 4, fig. 30. 



Donovan, Brit. Shells, ii. tab. 50. 



Montagu, Test. Brit. p. 48. 



Linn, Trans, viii. p. 44. 



Tto'ton, British Fauna, p. 148. 



Dorset Catal p. 28, tab. 4, fig. 3. 



Wood, Conch, p. 122, tab. 28, fig. 1, 2. 



Dillwyn, Descript. Catal. p. 59. 



Turton, Conch. Diet. p. 160. 

 Solen curvus. itsto'. Conch, tab. 411, fig. 257. 

 Mus. nost. On most sandy coasts. 



Shell about half an inch long, and three or four inches broad, 

 linear and very narrow in proportion to its length, diagonally 

 divided, with one of the triangles marked with purple and white 

 bands : both the extremities rounded. 



Linne doubted whether this species were not a mere variety 

 of Solen Siliqua. And in his description of it in the Mus. Lud. 

 Ulr. p. 473, has committed a small oversight, making the extre- 

 mities rounded in one part of the description and truncate in 

 another : utrdqne extremitale truncatd, and, extremitas 

 utraque rotundafa. 



Solen testa subarcuatd, valvd altera hidentatd, altera triden- peiiucidus, 



6. 



tatd dente medio bipartito. 

 Shell slightly curved, in one valve two teeth, in the other three, 

 tlie middle one of which is deeply divided. 



M 2 



