BARBATIA. 35 
Type.—From the Valangian of Sainte Croix. 
Distribution.—Lower Greensand of Upware. Atherfield Beds of East Shal- 
ford. 
2. Upper Cretaceous Species. 
Arca PHOLADIFORMIS, d’Orbigny, 1844. 
1844, Arca pHonapirorais, A. d’Orbigny. Pal. Frang. Terr. Crét., vol. iii, 
p. 219, pl. ecexv, figs. 1—3. 
L850, — — — Prodr. de Pal., vol. ii, p. 164. 
1866. — -- F. J. Pictet and G. Campiche. Foss. du Terr. 
Crét. Ste. Croix (Mater. Pal. Suisse, ser. 4), 
pt. 3, p. 473. 
1867. — — E. Guéranger. Album Paléont. Sarthe, p. 16, pl. 
xxi, ffgs. 5, 11. 
171.0 — ~ F. Stoliczka. Paleont. Indica, Cret. Fauna S. 
India, vel. iii, p. 343. 
P?1883. — ef. — A. Fritsch. Stud. im Geb. der bébm. Kreide- 
format. iii. Die Iser Schichten, p. 104, fig. 69. 
Remaris.—An internal mould of a right valve from the Upper Greensand of 
Devizes, which almost certainly belongs to this species, is preserved in the 
Museum of Practical Geology (No. 6454); its length is 28 mm., and its height 
11 mm. I have seen no other specimen. The hinge is apparently unknown. 
Genus—Barpatia, J. H. Gray, 1847. 
[‘Syn. Brit. Mus.,’ 1840, p. 151 (nom. nud.) ; ‘Proc. Zool. Soc.,’ 1847, p. 197.] 
1. Lower Cretaceous Species. 
Barpatta aptiensis (Pictet and Campiche), 1866. Plate VI, figs. 8 a—e, 9a, b. 
1845. Arca Ravuini, FE. Forbes. Quart. Journ. Geol. Soc., vol. i, p. 245 
(partim). 
1850. — — A. d’Orbigny. Prodr. de Pal., vol. ii, p. 80 (partim). 
1854. — — J. Morris. Cat. Brit. Foss., ed. 2, p. 185. 
1857. — — F. J. Pictet and E. Renevier. Foss. du Terr. Aptien 
(Matér. Pal. Suisse, ser. 1), p. 106, pl. xv, figs. 1—3. 
£1865. — crymopocr, H. Coguand. Mon. de l’étage Aptien de 1'’Espagne, 
p- 140, pl. xii, figs. 7. 8, 
