CONCHY LI A— D/T/fF/? J. 1. 



rerse series in each valve under the reflected margin of the 

 hinge at the back, and which are covered when alive by a fold of 

 the animal mantle and the cardinal accessorial plates. 



Tt is subject to much variation in shape, and often distorted, 

 being sometimes as long as it is broad. When lodged in the 

 stumps of old trees covered by tlie sea, and exposed only at the 

 lowest tides, it attains a very considerable size, as some specimens 

 in our cabinet measure full two inches long and seven in breadth. 



Pholas testa ovafd, latere antico hiantisshno rostrato, mar- paiva. 

 gine supra dentes tnberculo leevi, accessor io unico cardi- 

 nali. 

 Shell oval, very open and produced into a beak at the anterior 

 end, with a smooth tubercle on the margin above the teeth, 

 and a single accessorial valve at the hinge. 

 Pholas parva. Pewnan/, Brit. Zool. iv. p. 157, tab. 4-3, fio-. 1. 



Montagu, Test. Brit. p. 22, tab. 1. fig. 7 and 8. 

 Turton, British Fauna, p. 145, 

 Jjinn. Trans, viii. p. 33. 

 Wood, Conch, p. 82. 

 DUlwt/n, Descript. Catal. p. 38. 

 Turton, Conch. Diet. p. 143. 

 Mus. nost. Plentifully in the rocks iaTorbay. 



A very elegant species, growing to about three quarters of an 

 inch in length, and an inch and a half broad, but is usually less, 

 and may be readily known by the wide and oval opening which' 

 extends into a beak, by the want of cells under the reflected mar- 

 gin at tiie back, and the round smooth tubercle placed upon tin; 



