24 CONCHYLIA— l>/rJir/2^. 5. 



inimita. HiATELLA testd latere postico truncato areold impressd, angulis 

 hinis transversis spinosis, margine supero hiante. 

 Shell truncate with an impression at the hinder end, with two 

 transverse spinous angles, and open at the upper margin. 

 Tab. nost. 2, fig. 12. 

 Solen minutus. Linn. Syst. Nat. p. 1115. 

 Gmelin, Syst. p. 3226. 

 Turton, Linn. Syst. iv. p. 182. 

 Chemnitz, vi. p. 67, tab. 6, fig. 51 and 52. 

 Montagu, Test. Brit. p. 53, tab. 1, fig. 4. 

 Pennant, Brit. Zool. iv. p. 175. 

 hinn. l^rans. viii. p. 47. 

 Turton, British Fauna, p. 148. 

 Wood, Conc\i. p. 139, tab. 34, fig. 5 and 6. 

 DiUwyn, Descript. Catal. p. 69. 

 Turton, Conch. Diet. p. 161. 

 Mytilus praecisus. Montagu, Test. p. 165, tab. 4, fig. 2. 

 Mus. nost. From oysters and the roots of Fuci. 



Shell from a quarter to half an inch long, and nearly twice as 

 broad, dull white covered with a brown skin, irregularly striate 

 transversely, with one of the valves generally extending beyond the 

 other at the anterior margin : hinge close to one end, behind 

 which is a deep impression; the other end angular and truncate : 

 from the beaks to the anterior end run two transverse angles which 

 are mostly rough with vaulted spines, one along the margin at the 

 base, and another obliquely to the angle of the upper margin : 

 hinge with a conic tooth in one valve, and in the other a deep 

 cavity, with an obscure tooth on each side of it. 



