CONCHYLIA— D/THFi?^. 56. 251 



Tab.nost. 11, fig. 15. 



Gmelin, Syst. p. 3242. 



Turton, Linn. Syst. iv. p. 197. 



Chemnitz, vi. p. l3S, tab. 13, fig. 134. 



Pennant, Brit. Zool. iv. p. 185. 



Linn. Trans, viii. p. 60. 



Dorset. Catal. p. 31, tab. 7, fig. 2. a. 



Wood, Conch, p. 153, tab. 47, fig. 6. 



Dillwyn, Descript. Catal. p. 105. 



Turton, Conch. Diet. p. 168. 

 Tellina rivalis. Linn. Trans, iii. p. 44, tab. 13, fig. 27, 28. 



Donovan, British Shells, ii. tab. 64, fig. 2. 

 Cardium amnicum. Montagu, Test. Brit. p. 86. 



Turton, British Fauna, p 154. 

 Mus. nost. In slow rivers and streams. 



Shell about a quarter of an inch long, and three eights of an inch 

 broad, of a brownish or blueish horn-color, thin and semi-transparent, 

 sometimes yellowish towards the margin, a little produced and 

 narrower at one end, with regular transverse grooves ; inside blue- 

 ish : beaks prominent, obtuse, nearer one end. 



CyCLAS testa obliqud tumidd ineequilaterali transversim striolatd, um- pusilla. 



bonibus depressis. 

 Shell oblique tumid inequilateral and obscurely striate transversely, 

 with the beaks depressed. 



Tab. nost. 11, fig. 16, 17. 

 Tellina pusilla. Gmelin, Syst. p. 3231. 



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