LIMA. 47 



he has seen from the Lower Greensand of Atherfield and Blackgang belong to 

 L. semisulcata. L. Tombechiana also resembles L. suprajurensis, Contejean, 1 found 

 in the Upper Jurassic. 



Types. — D'Orbigny does not give the locality of the type, but says that he 

 obtained specimens from the Neocomian of Neuchatel, Auxerre, Saint Sauveur, etc. 



Distribution. — Hythe Beds of Court-at-Street near Lympne. Lower Greensand 

 of Brickhill. Tealby Limestone (zone of B. brunsvicensis) of North Willingham. 



Lima (Ltmatula) Dupiniana, d'Orbigny, 1847. Plate VII, figs. 11 a—c. 



? 1845. Lima semisulcata, E. Forbes. Quart. Journ. Geo]. Soc, vol. i, p. 248 



(non semisulcata, Nilsson). 

 1847. Lima Dupiniana, A. iVOrbigny. Pal. Franc. Terr. Cret., vol. iii, p. 535, 



pi. ccecxv, figs. 18—22. 

 1850. d'Orbigny. Prodr. de Pal., vol. ii, p. 81. 



1854. — J. Morris. Cat. Brit. Foss., ed. 2, p. 171. 



1855. G. Cotteau. Moll. Foss. de l'Tonne, p. 100. 

 1865. — ■ H. Coquand. Mon. Aptien de l'Espagne, p. 151. 

 1869. F. J. Pictet and G. Camjjiche. Foss. Terr. Cret. Ste. 



Croix (Mater. Pal. Suisse, 

 ser. 5), p. 150. 

 1871. Radula (Limatula) Dupiniana, F. Stoliczka. Palaeont. Indica, Cret. 



Fauna S. India, vol. iii, p. 414. 



Non 1883. Lima Dupiniana, A. Fritsch. Stud, im Gebiete der bohm. Kreideformat. : 



III, Iserschichten, p. 112, fig. 81. 



Description. — Shell oval, moderately convex, much higher than long, nearly 

 equilateral, with the posterior margin more convex than the anterior. Umbones 

 very small, pointed, close together. Ears unequal. 



Ornamentation consists of from ten to fourteen very narrow radial ribs, 

 usually with sharp summits, separated by broad rounded grooves. The anterior 

 and posterior parts of the shell are without ribs, and the posterior part is con- 

 siderably larger than the anterior. Very fine concentric ridges are present. 



Measurements : 



(1) (2) 



Length . 11 . 8 mm. 



Height . 21 . 14-5 „ 



(1) Tealby Limestone, North Willingham. 



(2) Ferruginous Sands, Shanldin. 



1 'Kimmerid. de Montbeliard ' (1859), p. 351, pi. xxvii, fig. 9 ; de Loriol and Cotteau, ' Portland, 

 de l'Yonne ' (1868), p. 205, pi. xiv, figs. 1, 2. 



