404 R. Bullen Newton — Egyptian Neiver Tertiary Shells. 



Melania tuberculata, Brot, " Die Melaniaceen (Melaniidse) " : Syst. 

 Conchyl.-Cabinet, 1874, p. 247, pi. xxvi, fig. 11. Edward 

 Hull : Mem. Geol. Palestine, etc., 1886, p. 80. 



Description. — Nerita testa subulata, cinerea, transversim striata ; 

 anfractihus nodulosis, strigisque sanguineis. (Miiller.) 



Eemarks. — The Egyptian specimens referred to this shell exhibit 

 the usual characters of the species. Numerous spiral lines ornament 

 the moderately convex whorls, these being crossed by oblique rows 

 of tubercles, which become more or less obsolete as the last whorl is 

 reached. Hull records this species as occurring in a serai-fossil 

 state in some marl terraces 20 feet high at Ain Abu Werideh, in 

 the Jordan-Arabah country, which is about 1,400 feet above the 

 level of the Dead Sea. For a further synonymy of the species 

 Dr. Brot's work should be consulted. 



Dimensions. — Length, 31 mm. ; diameter, 11 mm. 



Horizon. — Post-Pliocene (Lacustrine or Fluviatile Deposits). 



Distribution. — Tripoli, Algeria, Egypt, Madagascar, India, Ceylon, 

 Java, and Australia (Recent specimens). Palestine : Ain Abu 

 Werideh. Egypt : near Farshut, Nile Valley. Coll. Geol. Surv. 

 Egypt (No. 1,041, Box No. 53c). 



MOLLUSCA : LAMELLIBEANCHIATA. 



Genus ALECTEYONIA, Fischer (Waldheim). 

 Museum-Demidoff, vol. iii (1807), p. 269. 

 Type. — Mytilus cristagalli, Linnaeus (A. rara, Fischer). 

 Alectryonia cucullata. Born. (PI. XIX, Figs. 1-5.) 



Ostrea cucullata, Born : Mussel Csesarei Vindobonensis, 1780, p. 114^ 



pi. vi, figs. 11, 12. 

 Ostrea Forslcali and Ostrea cornucopice, Chemnitz : Conchylien- 



Cabinet, vol. viii (1785), p. 30, pi. Ixxii, figs. 671a-c ; 



p. 41, pl. Ixxiv, figs. 679a-&. 

 Ostrea Forslcali, Brocchi : Conch. Fossile Subapenniua. vol. ii (1814),. 



p. 566. 

 Ostrea undata, Lamarck: Hist. Nat. Anim. sans Yert., vol. vi (1819), 



pt. 1, p. 217. Basterot: Mem. Soc. Hist. Paris, vol. ii 



(1825), pt. 1, p. 1. Serres : Geognosie Terr. Tertiaires 



France, 1829, p. 136, pl. vi, figs. 4, 5. 

 Alectryonia cucullata, Chenu : Manuel Conchyliologie, 1862, p. 197. 

 Ostrea cucullata, and vars. comitatensis, occitania, Uuscinensis, 



Fontannes, " Moll. Pliocene Ehone et Eoussillon " : 



Invert. Bassin Tert. Sud-est France, vol. ii (1879), 



p. 228, pl. xvii, figs. 7-9 ; pl. xviii, figs. 5-7. 

 Ostrea pseudo-cucidlata, Fuchs : Palgeontographica, vol. xxx (1883), 



p. 36 (54), pl. xix (xiv), figs. 10-13. 

 Alectryonia (Ostrea) cucullata, Viguier, "Etude Pliocene Mont- 



pellier " : Bull. Soc. geol. France, ser. iii, vol. xvii 



(1889), p. 413, pl. X, figs. 2-5. 



