IN0(1KRAI\IUS. 



337 



Inoceramus digitatus, Sowerby, 1829. Text-fig. 05. 



1829. Inockramtts digitatus, J. cle C. Sowerbtj. Miu. Conch., vol. vi, p. 215, 



pi. dciv, fig. 2. 

 1854. — — /. Mf,rn>'. Cat. Brit. Foss , e.l. 2, p. 169. 



? 1875. — — C. Di'cocq. Assoc. Fran9. Avanc. Sci. (Lille, 



1874), p. 368. 



Remarlis.- — This species attains a large size, but is known only Ijy small 



Fio. 95. — Inoceramus di'jitnlus, Sow. The typt-. Fi-oin tlie Drift (JerivuU from tlie Ciialk). Uritish 



MuseKiii, No. 43273. x J. 



portions of the shell of which the exact horizon cannot be determined. The 

 ornamentation consists of broad, rounded, radial folds, which diverge very 

 gradually and are separated by broad rounded interspaces. Small concentric 

 ribs occur, and at distant intervals, broad, gentle, concentric folds can be traced. 

 The form referred to /. (Jiijiiatus by Schli'iter differs from that species in having 



