MAZATLAN BIVALVES 36 



54. TELLINA PUNICEA, Born. 



'Test. Mus. Gas. Vind. p. 33, pi. 2, f. 2. Dorset Cat, p. 30> pi. 7, 

 f. 5. Linn. Trans, vol. 8, p. 50. Brit. Mar. Conch, p. 66. 

 Brown Hlustr. Conch. Gr. Br. p. 100. Gmel. Syst. Nat. 

 p. 3239. Wood, Ind. Conch, p. 20, no. til Dill. Descr. 

 Oat. p. 90. Lam. ed. Desk, vol. 6, p. 196. Schroeler Einl. 

 t. 3. p. 22, no. 79Des7i. Enc. Meth. vers. t. 3, p. 1011. no. 12. 

 Hani, in Sow. Thes. Conch, vol. I/ p. 239, pi. 58, f. 89, and 

 pi. 60, f. 154^. M. Cat. Moll. DOrb. p. 61, no. 433. 

 Forbes fyHanl. Br. Moll. vol. 1, p. 314. 

 =Donax Martinicensis, Lam. teste Gray. 

 = Tellina alternata, Sow. teste Gray. 

 = angulosa, Gmel. teste Desk. 

 = sinmlans, C. B. Ad. Pan. Shells, p. 284. 

 ?=striata, Chemn. Conch, t. 10, tab. 170, f. 1654-5 ; teste 

 Dillioyn <$f Desk. : noil Forbes fy Hanley, Br. Moll., nee 

 Hani, in Thes. 



The late respected and very accurate Prof. Adams made his 

 T. sinmlans out of a valve he found of this species on what was 

 (to him) the wrong coast. Unfortunately for his theory, the 

 very slight differences he relied on (deeper furrows continued 

 over the flexure, interspaces less flattened, and lateral teeth 

 nearly obsolete) are not constant in the Pacific waters : and if 

 one shell is common to the two oceans, which he is obliged to 

 allow in the case of Crepidula unguiformis, why may not this 

 be ? The shell is known at once by its regular Tellinides shape, 

 solid texture, pink colour variously banded with white, and 

 deeply channelled furrows, some of which generally coalesce 

 on one side before they reach the flexure. The angle of the 

 ligamental area is more or less developed : the passage of the 

 sulcations over the fold varies not only in different specimens, 

 but in the same shell, in the opposite valves, or from young to 

 old. The closeness and flattening of the ribs, the colour and 

 the size of the lateral teeth also vary considerably, though I 

 have only had an opportunity of examining about 40 specimens. 

 Long. 1*15, lat.1'9, alt. *47. 



Hab. [Coasts of Britain, Pulteney, Wood, &c] "A West 

 Indian Shell, introduced into our Fauna through having 

 been figured in the Dorset Catalogue as identical with striata 

 Chemn." Forbes fy Hanley. Mediterranean, Lam. edDesh. 

 Cuba, Sagra in B. M. Cat. p. 36 Brazils, D'Orb. in B. M. 

 Cat. p. 61. St. Domingo, Sir. E. Schomberg, in B. M. 

 Trinidad, Hani. This, like many other West Indian shells, 



