Note 202 — APPENDIX II
Reading edition
For figures see Woods, Mon. Cret. Lamell. England, Vol. II., 1905, p. 64, Pl. IX., Figs. 2–4. Compare also d’Orbigny, Pal. Franç. Terr. Crét., Vol. III., 1846, p. 478, Pl. CCCXCII., Figs. 1–3. When describing this species I overlooked Guéranger’s statement that he had seen specimens showing ligament pits; from the presence of those pits it is evident that this species cannot belong to Pteria. It seems probable that Pseudoptera should be regarded as a sub-genus of Gervillia. Guéranger, Album Paléont. de la Sarthe, 1867, pp. 17, 20, Pl. XXII., Figs. 9, 10; Pl. XXV., Figs. 10, 11.