] lii CRETACEOUS LAMELLIBRANCHIA. 



(derived from the Upper Greensand) of Aller Vale near Torquay. They have 

 been identified with C. Ivjerieusis, d'Orbigny, 1 by Mr. Jukes-Browne, who has 

 compared them with examples of that species from the Cenomanian of Vimoutiers 

 and Orbiquet, and states that the agreement is very close. The English specimens 

 also resemble G. Noueliana, d'Orbigny, 2 of which a cast only is figured by 

 d'Orbigny, and was at first regarded as 0. ligeriensis. An example from 

 Wilmington is in the Sedgwick Museum. Others from Aller Vale are in the 

 Torquay Museum and in the Sedgwick Museum. 



Cyhjina (Ventlioardia ?) quadrata, d'Orbigny, 1844. Plate XXIII, figs. 6 — 9. 



1840. Isocardia cretacea, H. B. Geinitz. Char. d. Schicht. u. Petref. des siichs. 



Kreidegeb., pt. 2, p. 53, pi. xi, 

 figs. 6, 7 (rum Goldfuss). 

 1844. Cyprina quadrata, A. d'Orbigny. Pal. Franc. Terr. Cret,, vol. iii, p. 104, 



pi. cclxxvi. 

 1850. Proclr. de Pal., vol. ii, p. 161. 



II. B. Geinitz. Das Quadersandst, oder Kreidegeb. in 

 Deutschland, p. 156. 

 1865. F. J. Pietct and G. Campiche. Foss. Terr. Cret. Ste. 



Croix (Mater. Pal. Suisse, ser. 4), 

 p. 225, pi. cxv, figs. 3 — 5. 

 1870. F. Stoliczka. Palaeont, Indica, Cret. Fauna S. India, 



vol. iii, p. 193. 

 1873. H. B. Geinitz. Das Elbthalgeb. in Saclisen (Palseonto- 



grapbica, vol. xx, pt. 2), p. 62, pi. xvii, 

 figs. 14 — 16. 

 ? 1877. A. Fritsch. Stud, im Gebiete der bohm. Kreideformat. 



II Weissenberg. u. Malnitz. Schicht., 

 p. 116, fig. 76. 

 ? 1883. — Ibid., Ill Iserschicht,, p. 100, fig. 65. 



1895. Fj. Tiessen. Zeitschr. d. deutsch. geol. Gesellsch., 



vol. xlvii, p. 486. 

 1897. Arctica II. Woods. Quart. Journ. Geol. Soc., vol. liii, p. 390, 



pi. xxvii, fig. 25, pi. xxviii, fig. 1. 



Description. — Shell sub-rhomboidal, much inflated, rather strongly carinate, 

 very inequilateral ; length somewhat greater than height. Anterior margin 

 rounded, passing gradually into the slightly curved ventral margin. Posterior 



1 ' Pal. Franc. Terr. Cret,,' vol. iii (1844), p. 103, pi. eclxxv, figs. 1, 2; ' Prodr. do Pal.,' vol. ii 

 (1850), p. 161 ; Gueranger, 'Album Paloont. We la Sarthe,' 1867, p. 13, pi. xvii, figs. 1. 5. 

 Op. cit. (1844), pi. eclxxv, figs. 3, 4; op. cit. (1850), p. 195. 



