ADDITIONS. 433 



1865. Tellina gracilis, F. J. Pictet and G. Campiche. Foss. Terr. Cret. Sie. 



Croix (Mak'r Pal. Suisse, 

 ser. 4), p. 138. 

 ? 1868. — A. Biiart and F. L. Cornet. Meule de Bracquegnies 



(Mem. cour. et Mem. des Sav. 

 etrangers, vol. xxxiv), p. 80, 

 pi. vii, fig. 19, 20. 

 1870. F. Stolicska. Palseont. Indica, Cret. Fauna S. India, 



vol. iii, p. 123. 



Description. — Shell elongate-oval, moderately convex, slightly ineqnivalve and 

 inequilateral. Anterior margin rounded. Ventral margin slightly or moderately 

 convex, and forming an acute angle with obliquely truncated posterior margin. 

 Umbones incurved. A sharp carina extends in a curve from the umbo to the 

 postero-ventral angle, and cuts off a flat or slightly concave postero-dorsal area. 

 Ornamentation consists of concentric ribs, which are less numerous but stronger on 

 the anterior part of the shell and the postero-dorsal area than elsewhere. 

 Measurements : 



(i) (2) 



Length .... 14 . 8 mm. 



Height .... C . 4 „ 



(1, 2) Blackdown. 

 Affinities. — This species resembles Thracia elegans (d'Orbigny) 1 but possesses 

 stronger concentric ribs. Its generic position cannot be determined definitely 

 since only a few specimens have been seen, none of which shows the hinge or 

 interior. 



Type. — The type from Blackdown cannot be found. 



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



INOCEKAMUS TUBEOCULATUS, Woods. [See Vol. II, p. 302.] 



An example of this species has been found in the zone of Aetinocamax 

 quadratus of East Harnham, Salisbury, by Dr. Blackmore. 



Inoceramus intermedius, Soicerby. 



[Loudon's ' Mag. Nat. Hist.,' vol. ii (1829), p. 296, fig. 83.] 



The figure given by Sowerby of a specimen from Norfolk appears to have 

 been overlooked by previous writers ; it probably represents a large form of 

 I. Lamarclci var. apicalis. 



1 ' Pal. Franc. Terr. Cret.,' vol. iii (1845),^p. 386, pi. ecclxxiii, figs. 3—5. 



