ANOMIA. 29 
A. intercostata, Zittel.!| The ornamentation in this form resembles that of A. sub- 
radiata, Reuss,” but in that species the shell appears to be less inequilateral. 
Remarks.—I have seen only two examples of this form; it appears to be quite 
distinct from the other English species, and to resemble most A. subradiata, 
Reuss, from the Plinermergel of Luschitz. 
Distribution.—Crackers of Atherfield. 
ANoMIA L&vIGATA, Sowerby, 1836. Plate V, figs. 6, 7 a, b, 8a, b, 9. 
1836. ANomiIA Levicata, J. de C. Sowerby. Trans. Geol. Soc., ser. 2, vol. iv, 
p- 338, pl. xiv, figs. 6a, b. 
? 1847. — — A. d'Orbigny. Pal. Frang. Terr. Crét., vol. iii, p. 755, 
pl. ceeelxxxix, figs. 4—6. 
1850. — — -— Prodr. de Pal., vol. 1i, p. 84. 
1854. — — J. Morris. Cat. Brit. Foss., ed. 2, p. 161. 
Description.—Shell regular, nearly orbicular ; surface smooth except for lines 
of growth. Left valve moderately convex; umbo small, at or near the margin. 
Measurements : 
(1) (2) (3) 
Length . 36 : 22 ; . 14mm. 
Height 4 : 32 F 21 tomes 
Types.—One of the types (PJ. V, fig. 6, and Sowerby’s fig. 6a), from the Hythe 
Beds of Lympne, is in the Museum of Practical Geology (No. 6414) ; I have not 
seen the other. 
Distribution.—Ferruginous Sands (upper beds) of Shanklin; Atherfield Beds 
of Peasmarsh; Hythe Beds of Lympne; Lower Greensand of Punfield. 
Anomia convexa, Sowerby, 1836. Plate V, figs. 10a, b. 
1836. Anomia convexa, J. de C. Sowerby. Trans. Geol. Soe., ser. 2, vol. iv, 
p. 338, pl. xiv, fig. 7. 
1854. — -—- J. Morris. Cat. Brit. Foss., ed. 2, p. 161. 
Description.—Shell rather small, more or less orbicular or quadrate ; surface 
smooth, or with fine ribs. Left valve very much inflated, with a rather prominent 
umbo. 
1 «Die Bivalven der Gosaugeb.,’ pt. ii (1866), p. 51, pl. xix, fig. 10. 
9 
2 «Die Verstein. der bohm. Kreideformat.,’ pt. ii (1846), p. 45, pl. xxxi, figs. 18, 19. 
