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Show 1901.] MOTHER-OF-PEARL OYSTERS. 393 Species 34. MARGARITIFERA REENTSII. Avicula (Meleagrina) reentsii, Dunker, 1872, p. 9, tab. 2. figs. 1 & 2. Red Sea. " The following species, from Reeve's and Dunker* s Monographs, are founded upon unlocalized material. Most of the shells figured, and such of Reeve's types as are preserved, are too young to be identfied with safety. They probably all belong to the Lingah division, and are, I believe, in most cases the young of M. vulgaris and 31. radiata. Species of this kind, based upon unlocalized immature and scanty material, can have no scientific value, and only a historic interest. 31. crocata (Swainson), Dunker, 1872, p. 16. M. radula (Reeve), 1857, sp. 23. Type in B.M. M. irrasa (Reeve), 1857, sp. 30. Type not extant. 31. chamoides (Reeve), 1857, sp. 41. Type in B.M. 31. hystrix (Reeve), 1857, sp. 18. Type in B.M. M. pallida (Dunker), 1872, p. 46, tab. 15. fig. 4. 31. grisea „ „ p. 11, tab. 2. fig. 5. M. prasina „ ,, p. 52, tab. 18. fig. 2. 31. concinna ,, ,, p. 53, tab. 18. fig. 4. M. bicolor „ „ p. 70, tab. 24. fig. 7. M.fiuctuosa „ „ p. 71, tab. 25. fig. 2. [Avicula (Meleagrina) magellanica Stempell, 1899 ("Die Mu-scheln der Samm'lung Plate," Fauna Chiliensis, Bd. 2, erstes Heft, S. 230, Taf. 12. tigg. 13-15), strongly suggests the genus Philippiella (Pfeffer, 1886). Specimens in the B.M. from Punta Arenas, 9-10 fms., Dr. Coppinger, 79.10.15.-79 and 80 appear to me to be quite in agreement with Stempell's description and figure. The fact that the British Museum specimens were taken in the same locality and depth as Stempell's confirms my opinion that they are identical. I can see no grounds for placing them in the genus Pteria.] BIBLIOGRAPHY. BROWNE P., 1756. Natural History of Jamaica. CARPENTER, P. P., 1857. Cat. Coll. Mazatlan Shells in the Brit. Museum. . . CHEMNITZ, J. H., 1785. Martini und Chemnitz, Syst, Couch.- Cab Bd. 8(Nurnberg). CONRAD," T. A., 1837. Journ. Acad. Nat. Sci. Philad. vol. vii. COOKE,'A. H.^1886. Ann. Mag. Nat, Hist. (ser. 5), vol. xvii. D'ORBIGNY8 A., 1*847. Voy. dans l'Amer Meridionale tome 5. T W r v * W 1852 "Aviculacea nova, Zeitschr. f. Malakoz. D U 9 Jihrgang, 1852 : Cassel, 1853, pp- 73-80. |
