mOCERAMUS. 



283 



D'Orbigny identified this species with /. prohlematicits, von Schlotheini, which 

 comes from the Senoniai:, and has been shown by Bolim to be distinct from the 

 Tiu'onian form.^ 



lieniarks. — This species is mainly characteristic of the zone of lih[/nch<jiicUa 

 Cavieri. In the zone of Terehratuliua lata it is not common, and the shell is 

 nsually relatively longer than in typical forms of the species. 



TijiK-s. — The type came from the Turonian of I'irna. The sjiecimens figured by 

 Man tell from the zone of Blujuclionella Cavieri of Pliimpton are in the British 

 ]\fnseum. The large specimen figm-od by Sowerl)y fi'om AVarminster cannot 1k> 

 found. 



Diiitribiitlon. — Zone of Bh//urJtoncll(t Cavieri of the Devon and Dorset coasts, the 

 Isle of Wight, AVinchester, Eastbourne, Lewes, Plumpton, Dover, Blue Bell Hill 

 (Burham), Betchworth, Watlington (Berkshire), Hitchin, Cherrj' llinton. South 

 Thoresl)y, South Ferriby (Lincolnshire), antl the Yorkshire coast. Zone of 

 Tcrehratnlhiii lain of the Devon and Dorset coasts, Winchester, Eastl)ourne, and 

 Dover. 



Recorded by Jukes-Browne from the zone of Holaster sub(jlohosas of Cambridge- 



FiG. 37. 



Fio. 38. 



•i^-. 



:^ 



Via. til.—Inoceramus laiialus (Schloth). Tlio typo of Inoceramus mylilnides, MautfU, ' Foas. S. Downs,' 

 p. 215, pi. xxviii, fig. 2. Zone of K/nyiic/ioiicHu t'lii-icrt. Plumpton. Ui-itish Miisfum. Nntunil size. 



ipton 

 Fio. 38. — Inoceramus labia/us vjir. hihis, Sow. Zoiio of lli>hisf,i- iilnnns, ruik-y Junctioa Station. 



Musuuni, No. L211'J1. Natiu-.il sizf. 



1 J. Bolini, ' Moiiatsber. d. d.;utsch. gwl. Gesellsch.' (ll}Oi>), p. 117. 



British 



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