INOCERAMUS. 



265 



I. angllcus also resembles I. Ewaldl, Scliliiter/ bat is relatively higher, more 

 inequilateral, and the ribs are more strongly carved. 



Uemarks. — This species has been usaally identified as I. coiicentricus, Parkinson, 

 but the equal size of the valves and other characters readily distinguish it from 



Fig. 29. — Inoceramus angliats, sp. nov. Eed Limestone, Hunstanton. Sedgwick Museum, 

 Cambridge. Part of right valve. Natural size. 



that species. An example from Hunstanton was figured by Wiltshire as /. Grispil 

 {— Ciippsi), Mantell. 



Distribution. — Red Limestone of Hunstanton. Grault of Folkestone. Cam- 

 bridge Greensand (derived from the Grault). Marl in the Gault of Roydon, West 

 Norfolk. Upper Greensand of Haldon, the Isle of Wight, and Devizes. 



Inoceramus coNChiNTRicus, ParJiinson, 1819. Plate XLV, fig. 11 ; Plate XLVI, 



figs. 1 — 10 ; Plate XLVII, figs. 1, 2. 



1819. Inoceramus concentricus, J. ParJcinson. Trans. Geol. Soc, ser. 1, vol. v, 



p. 58, pi. i, fig. 4. 



1821. — — /. Sowerby. Miu. Concli., vol. iii, p. 183, pi. 



cccv, figs. 1 — 6. 



1822. — —a. Mantell. Foss. S. Downs, p. 95, pi. xix, 



figs. 15, 19. 

 — — — A. Brongniart iu Cui;ier. Ossemens Foss., 



vol. ii, pt. 2, pp. 333, 336, 

 609, pi. vi, fig. 11. 

 1828. - — GRTPH^oiDES, /. (le C. Sowerhy. Min. Couch , vol. vi, p. 161, 



pi. dlxxxiv, fig. 1. 



1 See footnote on p. 267. 



