V,' 



IXOCE RAMUS. 307 



Inoceramvs VKDii.ATo-i'i.K Alls ntv. iMciTAns, Srliliitrr, 1877. Text-fig. G2. 



1873. Inoceramus dioitatus, F. Sclmidt. Mini. Acad. Imp. Sci. de St. Pt'tersb., 



sei'. 7, vol. xi.\, no. 3, p. 2.5 {2iartim), 

 ]il. vi, fi^-.s. 3, 5. 



1877. — — C. Schliiter. Palseoutograpljica, vol. .xxiv, p. 267, 



jil. xx.wi. 



1878. — — C. Barniis. Ann. Soc. fjcul. du Nord, vol. v, 



p. 475. 

 1902. — — A. Wdlli'iiiinni. Li'meburg. Kreide (Abliandl. d. 



k. preuss. geol. Landesanst., 

 N.K., 37), p. 70. 



Revuirl-s. — As was pointtMl out liy Scliliiter, this form is very closely allied to, and 

 perhaps not separable from, /. n whilato-plicatii s ; it differs from the latter mainly 

 in that the posterior ribs are strony-er and fewer in nunilier than the anterior ribs, 

 but the early parts of the shell are very similar in the two forms. Until more 

 specimens have been obtained the exact relationships of the two forms cannot be 

 determined, and for the present it seems best to r(>o-ard /. digitittuH of Schliitcr 

 {non Sowerby) as a variety of I. nndiihitu-jtUcatiis. 



Distribafion. — Zone of Micratttev cor-anr/niiiitm of Charlton, Snowdown Colliery 

 Hliaft, Xonington near Dover, I'reston near Faversham, and Salisbury. Zone of 

 Actinocamax quailratun of Salisbury. 



Inoceuaml's L\si\\ivKi, Furli-iitson, 1819. Plate Lll, figs. 1- — G; Plate LIII, figs. 



1—7. Text-figs. 63—85. 



17(i8. OsTREOPiNNiTES, J. E. I. Walch. Naturtfesc-liiclite d. Verstelu., vol. ii, 



p. 142, pi. Di*», figs. 1—5. 

 1819. Inoceramus Lamarckii, J. Parkinson. Trans. Geol. Soc, ser. 1, vol. v, 



p. .5.5, pi. i, fig. 3. 

 1822. — CuviEKi, J. ::>oirt'rhi/. Trans. Linn. Soc, vol. xiii, p. 453, 



Jll. XXV. 



— — Lamarckii, G. Mantell. Foss. S. Downs, p. 214, pi. xxvii, 



fig. 1. 



— — CnviERi, Mantell. Ibid., p. 213, pi. xxvii, fig. 4, pi. xxviii, 



figs. 1, 4. 



— — IIkononiakti, ^fantell. Ibid , p. 214, pi. xxvii, fig. 8. 



— — Websteki, MiiiilfH. Ibid., p. 21»), pi. xxvii, fig. 2. 



— — vvDVLJiTVS, Mantell. Ibid., p. 217, jd. .xxvii, fig. 6. 



— — LATUs, Mtnil-ll. Ibid., p. 21(), pi. xxvii, fig. 10. 



— Catillus Cuvikki. .1. ISronyniart. lu Cuvier's Ossemens Foss., vol. ii, 



p. 601, pi. iv., fig. 10. 



