INOCERAMUS. 



:',(»:, 



referred to I. undulato-plicatus by Whiteaves, 1 but White 2 doubts the "correctness 

 of the identification. I. diuersus, Stoliczka, 3 is another allied form. 



Michael does not accept Schmidt's and Schli'iter's identification of the 

 specimens from Saghalien and North Germany with Romer's I. undulato-plicatus, 

 but regards them as belonging to a distinct species for which he proposes the 

 name I. Schmidti. He, however, regards I. diversus, Stoliczka, as an example of 



F.g. 01. 



Fig. 60. 



Fig. 60. — Inoceramus undulato-plicatus, Rom. Senonian, Haldon. British Museum, No. L17371. Flint 



cast of part of right valve. Natural size. 



Fig. 61. — Inoceramus undulato-plicatus, Rom. Senonian, Haldon. British Museum, No. L17369. x |. 



this species, consequently it was unnecessary to introduce a new name. The 

 English specimens show a good deal of variation, and after comparing them with 

 Romer's and other figures I do not feel able to accept Michael's view. 



Type. — From the Chalk of Texas. 



Distribution. — Senonian of Haldon. 



1 ' G-eol. Surv. Canada, Mesoz. Fos.«.,' vol. i (1879), p. 168, pi. xx, fig. 2, and I. digitatus (ibid., 

 1903), p. 395 ; also ' Trans. Roy. Soc. Canada,' ser. 2, vol. i (1895), p. 121. 



2 'Bull. TJ. S. Geol. Suit.,' no. 51 (1889), p. 37. 



3 'Palajont, Iudica, Civt, Fauna S. India,' vol. iii (1871), p. 407, pi. xxvii, fig. 6. 



