44 CRKTACKOUS LAiMEM J HI! AXCIl I A. 



Types. — From the Senonian of Macstricht. D'Orbigny's specimens came 

 from the Cenomanian of Lc Maus and from the Senonian of Tours and Loir-et- 

 Cher. 



Distribiifion. — Cenomanian (Bed 11) of Dunsconibe. 



Lima (CrjiNoiDHs) luvauicata, Dajardin, 1837. Plate V'll, figs. 4« — d, 5, <Jn, b. 



1837. Lima divaricata, F. Bujardiii. Mcin. Soc. gcol. Je France, vol. ii, p. 227, 



pi. xvi, fig. 7. 



1840. — ARCUATA, //. B. Geinitz. Cbai". d. Scliirht. u. Petrcf. dos siichs. 



KroiJegeb., jjt. 2, p. 57, pi. ix, fig. 7. 



1841. — DIVARICATA, i^. J. iSiimec. Die Verstein. d. uorJ-deutsch. Kreidegeb., 



p. 58. 

 1850. — — .1. d'Oi-hujtnj. Prodr. de Pal , vdI. ii, p. 248. 



— — GRANOSA, /. de C. Sowciiii/ ill F. Dixon. Geol. Sussex, p. 347 (p. 382, 



ed. 2), pi. xxviii, figs. 24, 25. 

 1854. — _ /. Mon-ig. Cat. Brit. Foss., ed. 2, p. 171. 



1859. Mytilus':' spectabilis, J. Mailer. Petivf. der Aacheu. Ivroidcf., supple- 

 ment., p. 10, pi. vii, tig. 10. 



1870. Lima granosa, F. J. Pirfef and G. Campiche. Foss. Terr. Crct. Ste. Croix. 



(Mater. Pal. Suisse, ser. 5), p. 169. 



— — divaricata, Fidel and Caitipichc. Ibid., pp. 171, 173. 



1871. Kadula (Ctenoides) geanosa, F. Stoliczka. Palieout. ludiea, Cret. 



Fauna S. India, vol. iii, p. 415. 



— — — divaricata, Stuliczlca. Ibid., p. 415. 



1872. Lima divaricata, II. B. Geinitz. Das Elbtbalgeb. in Sacliscn (Pal- 



leontograpbica, vol. xx, i>t. 1), 

 p. 205, pi. xlii, tig. 18. 

 1889. — — A. Ftitseli. Stud, iin Gebiete der biJhni. Kreidefoiniiil. : 



IV, Teplitz. Scliicht., p. 83, fig. 77. 



— — — E. Holzapfel. Die MoUusk. Aachen Kreide (Paloeon- 



tograpliiea, vol. xxxv), p. 241, 

 pi. xxvii, fig. 7. 



1897. — granosa, //. Woodn. Quart Jouru. Geol. Soc, vol. liii, p. 383. 



1902. — divaricata, M. p. Fi'tl/ij. MKtbeil. Jahrb. d. lc. uiigarisch. geol. 



Austalt, vol. xiii, p. 274, pi. xx, fig. 4. 



De.^cript'wn. — Shell convex, flattened, the anterior marginal part sloping 

 steeply, the posterior part more gradually ; outline rather variable, more or less 

 ovate or aj)proaching to oblong, considerably higher than long, only slightly 

 unsymmetrical. Umbones rather small, not much incurved. Ears relatively 

 short and high, not sharply limited; the antei-ior larger than the posterior. 



Ornamentation consists of numerous small radial ribs which diverge from a 

 median or nearly median line or sometimes in part from two lines forming an 



