LIMA. 25 



T i/2)es. —WOvhigny's specimens came from the Lower Senonian of Dordogne, 

 Charente-Liferieure, Cambrai, and Aube. 



Distrlhution. — Zone of Belemnitella mucronata of Norwich. 



Suh-gcnus — Acesta, II. and A. Adants, 1858. 

 (' Genera of Keceut Mollusca,' vol. ii, p. 558.) 

 Lima (Acesta) longa, Burner, 184L Phite V, figs. 8(i,h, 9 — 11, \2a,b. 



1836. Lima elongata, F. A. Bonier. Die Versteiu. d. nurd-deutscli. Oolith.-geb., 



p. 79, pi. xiii, fig. 11 (nou elongata, 

 Sowerby). 



1841. — LONGA, Romer. Die Versteiu. d. uord-deutsch. Kreidegeb., p. 57. 



1847. — —A. d'OrhUjny. Pal. Frau9. Terr. Cret., vol. iii, p. 529, pi. 



ccccxiv, figs. 13 — 16. 



1850. — — — Prodr. de Pal., vol. ii, p. 81. 



1865. — — H. Coquand. Mou. Aptien de I'Espagne, p. 149. 



1868. — — P. de Loriol. Valaugieu d'Arzier. (Mater. Pal. Suisse, ser. 4), 



p. 41, pi. iii, fig. 11. 



1869. — —F.J. Pictet and G. Camjnche. Foss. Terr. Crct. Ste. Croix 



(Mater. Pal. Suisse, ser. 5), p. 128, 

 pi. clxi, figs. 6, 7. 

 1871. — — W. A. Ouster. Protozoe Helvetica, vol. ii, pp. 104, 123. ^ 



1877. — — G. Biihm. Zeitsclir. d. deutsch. geol. Gesellscli., vol. xxix, 



p. 235. 



1883. — — W. Keeping. Foss., etc., Neoc. Upware and Brickhill, p. 112, 



pi. v, fig. 6. 



1884. — n. sp., 0. Weerth. Die Fauna des Neocom. iui Teutoburg. Waldo 



(Palajout. Abliandl., vol. ii), p. 51. 

 ? 1895. — (Plagiostoma) cf. Eobinaldina, F. Vogel. HoUiind. Kreide, p. 56. 

 1896. — LONOA, A. Wollemann. ZeitscLr. der deutscb. geol. GesellscL., 



vol. xlviii, p. 836. 

 1900. — — — Die Biv. u. Gastrop. d. deutscb. u. bolliiud. 



Neocoms (Abhandl. d. k. preussiscb. geol. 

 Land., N. F., pt. 31), p. 27. 



Description. — Shell compressed, sub-triangular, rounded, considerably higher 

 than long, of small obliquity. Posterior and ventral margins convex; anterior 

 margin straight. Umbones pointed, close together. Apical angle small — about 70°. 

 Posterior ear large, not separated from the rest of the valve by a depression, 

 ornamentoil with radial ribs. Anterior ear smaller, nuich higher than long. 



4 



