INOCERAMUS. 



265 



I. amilicus also resembles /. Ewaldl, Scliliiter,' l)iit is ivliitively lii.ulici-, iiinrc 

 inequilateral, and the ribs are more strongly curved. 



li'riiiarJcs. — This species has been usually ideutified as /. (■(Diceiifricns, I'arkinsun, 

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



,-<*<"' 



Fig. 29. — Inoceramus angliais, sp. nov. Red Limestone, Hunstanton. Sedgwick Museum, 

 Cambridge. Part of right valve. Natural size. 



that species. An example from Hunstanton was figureil l)y Wiltshire as /. CrUpii 

 (= Crippsi), Mantell. 



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

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

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



liNouiiKAMUs coxciiNTiucus, Pd rlcinxitii, 181'.l. Plate XLV, fig. 11; Plate XLVI, 



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



1819. iNOCERAMtrs coNCENTRicus, J. ParJii iinon . Trans. Geo!. Soc, ser. 1, vol. v, 



p. 68, 1)1. i, &g. 4. 



1821. — — J. Sowerhij. Miu. Couch., vol. iii, p. 183, pi. 



cccv, figs. 1 — 6. 



1822. — — G. Manlell. Foss. S. Downs, p. 95. pi. xix, 



fi-s. 15, 19. 

 — — — A. Broiignlart in Curler. Ossemens Foss., 



vol. ii, pt. 2, pp. 333, 33(5. 

 609, pi. vi. fij,'. 11. 

 1828. — ORTPH.«:oiDES, J. de C. Sowerby. Jliu. Coneb , vol. vi, p. 161, 



pi. illwxiv. fijx. 1. 



1 See footnoU' on p. 267. 



