158 CRETACEOUS LAMELLIBRANCHIA. 



1854. Pecten striato-punctatus, J. Morris. Cat. Brit. Foss., od. 2, p. 177. 

 1868. — ARZiEEENSis, P. iU Loriol. Valangien d'Arzier, j). 47. pi. iv, 



figs. 3—5. 



1870. — STEiATO-PUNCTATUS, F. J. Pictet and G. Campiclie. Foss. Terr. 



Crct. Ste. Croix (Mater. Pal. Suisse, 

 ser. 5), pp. 196, 211, pi. clxxi, figs. 

 4,5. 

 — — AviziERET^sis, Pictet and Campiche. Ibid., pp. 195, 211, pi. clxxi, 



fig. 3. 



1871, — (Camptonectes) STRiATO-PtrNCTATUs, F. StoUczlca. Palasont. 



Indica, Cret. Fauna S. 

 Iiidia, vol. iii, p. 428. 

 1877. — STEIATO-PUNCTATUS, G. Bijlim. Zeitschr. d. deutscli. geol. Gesellsch., 



vol. xxix, p. 233. 

 1884. — — 0. WeertJi. Die Fauna des Neocom. im Teuto- 



burg.Walde (Palaeout. Abliandl., 

 vol. ii), p. 53. 

 1888. — ARZIEEENSIS, 6'. Nilcitin. Les Vest, de la Per. Cn't. dans la Euss. 



centrale (Mem. Com. Geol., vol. v), 

 p. 73, pi. ii, fig. 12. 

 1889'. — LENS, var. morini, G. W. LatujiJiKjh. Quart. Journ. Geol. Soc., 



vol. xlv, 2^. 615. 



1895. — (Camptonectes) steiato-punctatus, F. Voijel. Holland. Kreide., 



p. 54. 



1896. — striato-punctatus, A. Wolhmann. Zeitschr. d. deutscli. geol. 



Gesellsch., vol. xlviii, p. 840. 

 190O. — — — Die Biv. u. Gastrop. d. dcutsch. 



u. hoUiind. Neocoms (Ab- 

 liandl. d. k. preussisch. geol. 

 Land., N. F., pt. 31), p. 49. 

 ? 1900. — — G. MilUer. Verstein. d. Jura u. d. Kreide. In 



W. Bernhardt, Zur Oberflachenu. 



Geol. Deutsch-Afrikas (Deutsch- 



Ost-Afrika, vol. vii), p. 550, pi. 



xxiv, fig. 7. 



Dcscfi/iflov. — Sliell ovate, a little liig-lior than loiii^-, nearly e(|uilatei"al, convexity 

 small, niai-o-ins rounded, dorsal portion pointed. Ears nnecpial. 



Riglit valve flattened, anterior ear Avitli a deep sinns. Left valve rather more 

 convex, anterior ear with the outer angle nearly rectangular, posterior ear with 

 obtuse outer angle. 



Both valves ornamented with numerous flattened radial ribs, which curve out- 

 Avards from the median part of the valves, and sometimes Ihfiircate, or have new 

 ribs intercalated. Ribs separated by narrow, sharply mai'ked punctate grooves. 

 At intervals a few distinct gi'owth-liues occui-. l^]ars with radial ribs crossed by 

 concentric growth-ridges. 



