9S 



Doftor PaLTEN'EY confiders this to be the Piperata 

 Chama of the Latins, Madrapiperata, Gmel. Syjl. p. 3261. 

 a fliell well known in the Mediterranean, and greatly re- 

 liflied as food. It is not eaten in any part of England 

 that we know of: and indeed, thofe we have tafled were 

 extremely bitter. 



The animal has two (lender tubes of a yellowifii colour, 

 placed near together at the anterior end ; one, about three 

 inches long, is thrown about in fearch of food, fuch as 

 infefts ; which may be feen pafTmg up this tranfparent 

 fyphon, with the current of water it is continually taking 

 in, and difcharging at the fhorter tube, placed nearer to 

 the hinge; retaining only the nutritious matter: but it 

 occafionally ejefts the fuperabundant water with confide- 

 rable velocity from both tubes, particularly the longeft. 



6. 

 Bqys,,^ MaO-ra Alba. Lin. Trans, vi. t, 16. f. 9. to 12. (Wood.) 



Tab. 3. i. 7. y^^ ^j^]^ ^^ q^^j^ f]^j.^ \\\\v\, pellucid, gloffy, white 

 fliell, almoft fmooth, or with a few diftant, obfolete, con- 

 centric flrias: uriibo placed neareft to the leffer end, very 

 fmall, and a little turned at the apex: primary teeth one 

 in each valve, fmall ; cartilage cavity broad; lateral teeth 

 in one valve only, broad, elevated. Inflde fmooth, glofly, 

 white; cicatrix nearly obfolete, large, running from the 

 Imaller end two thirds acrofs the fliell, parallel with the 

 margin. Length rather more than half an inch ; breadth 



exceeds three-quarters. 



This 



