TELLINA. 173 



1805. Tellina striatula, F. J. Pictet and G. Campiche. Foss. Terr. Cret. Ste. 



Croix (Mater. Pal. Suisse, ser. 

 4), p. 139. 

 1870. (Tellinella) stkiatuloides, F. Stuliczka. Pakeont. Indica, Cret. 



Fauna S. India, vol. 

 iii, p. 123. 



Description. — Shell elongate-oval, compressed, inequilateral ; length equal to 

 about twice the height ; the anterior part longer than the posterior part. Anterior 

 margin rounded. Ventral margin slightly curved, making an angle with the 

 posterior margin. Posterior margin oblique, curved near the postero- ventral 

 angle, and forming an obtuse angle with the postero-dorsal margin. Umbones 

 inconspicuous, only slightly curved. A rounded carina extends in a nearly straight 

 line from the umbo to the postero-ventral angle, and cuts off a flattened postero- 

 dorsal area. Ornamentation consists of small radial ribs on the postero-dorsal area 

 and on the part just in front of the carina ; also on a small part of the shell near 

 the anterior margin. Fine concentric lines are also present, and are more 

 distinct on the anterior and posterior parts of the shell than elsewhere. Pallial 

 sinus relatively small, somewhat angular. 



Measurements : 



(i) (2) 



Length . 30 . 27 mm. 



Height . 14-5 . 13-2 „ 



(1—2) Blackdown. 



Affinities. — Stoliczka placed this species in the sub-genus Tellinella, with which 

 it agrees closely in external form, but the oblique cardinal teeth resemble more 

 closely those of the sub-genus Palseomcera. 



Type. — From Blackdown ; in the British Museum. 



Distribution. — Upper Greensand (zone of Schloenbachia rostrata) of Blackdown 

 and Haldon. Recorded by Jukes-Browne from the higher part of the zone of 

 Pecten asper in North Dorset. 



Section — Pal.eom(ERA, F. Stoliczlca, 1870. 

 ('Palseont. Indica, Cret. Fauna S. India,' vol. iii, p. 110.) 



Tellina (PALiEOMuiRA) in.eqtjalis, Sowerby, 1824. Plate XXVII, figs. 2—8. 



1824. Tellina in.equalis, /. de 0. Sowerby. Mm. Conch., vol. v, p. 80, pi. 



cccclvi, fig. 2. 

 1850. Arcopagia A. d'Orbigwj. Prodr. de Pal., vol. ii, p. 158 (partim). 



1854. Tellina J. Morris. Cat. Brit. Foss., ed. 2, p. 226. 



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