lOO 



1869. Meleagrina Margaritifera Issel (nec Linn.), Malacol. Mar. Rosso, p. 95. 



1872. Avicula [Meleagrina) hadia, A. (M.) varia, A. [M.) occa, A. [M.) aerata, A. (M.) fiicata 

 and A. [M.) perviridis Dunker, in Martini Chemn. Conch.-Cab. (N. F.), VII (3), Avicula^ 

 p. 12, pi. II, fig. 7, p. 17, pi. IV, fig. 6, p. 42, pi. XIII, fig. 5, p. 46, pi. XV, fig. 3. 

 p. 49. Pl- XVII, fig. 2. p. 53, pi. XVIII, fig. 5. 



1878. Meleagrina Savignyi Monterosato, Enum. Sinon, etc., p. 5. 



1887. Meleagrina miiricata [^ fucata), Cooke, Ann. Mag. Nat. Hist., (5) XVII, p. 136. 



1896. Avicula [Meleagrina) albina var. Vaillanti Vassel, Assoc. Français. Avan. Sci., p. 10. 



1897. Meleagrina radiata Bavay, Bull. Soc. Zool. France, XXII, p. 199. 

 1899. Meleagrina Savignyi Monterosato, Journ. Conchyliol., XLVII, p. 392. 

 1901. Alargaritifera vulgaris Jameson, Proc. Zool. Soc. London, p. 384. 

 1904. Meleagrina occa Giard, Compt. Rend. Soc. Biol. Paris, p. 255. 



1904. Margaritifera vulgaris Herdman, Ceylon Pearl Oyster Rept., II, pp. 37 — "j^, pis. I — IX. 



1905. Meleagrina radiata Tillier & Bavay, Bull. Soc. Zool. France, XXX, p. 177. 



1906. Margaritifera vulgaris Standen & Leicester, Ceylon Pearl Oyster Rept., V, p. 289. 



1907. Margaritifera vulgaris Melvill & Standen, Proc. Zool. Soc. London, p. 803. 



1909. Pteria [Margaritifera) vulgaris Lynge, D. Kgl. Dansk. Vidensk. Selsk. Skr. Nat. Math., 



(7) V, p. 142. 

 191 2. Meleagrina occa Pallary, Mém. Inst. Egypt., VII, p. 154, pi. XVIII, figs. 13, 23. 



1918. Pinctada vulgaris Hedley, Journ. Proc. Roy. Soc. N. S. Wales, LI, Suppl.. p. M. 7. 



1919. Pteria [Meleagrina) vulgaris Odhner, Arkiv Zool., XII, n". 6, p. 4, 



1926. Meleagrina albina Pallary, Mém. Inst. Egypt., XI, p. 117, pi. XV, figs. 8, 9. 



1927. Pinctada vulgaris Tomlin, Trans. Zool. Soc. London, XXVI, 301. 



1929. Meleagrina vulgaris Dautzenberg, Faun. Colon. Français., III, p. 563. 



1930. Pteria [Margaritifera) vulgaris Thiele, Faun. Sùdvvest. Austral., V, p. 590. 



My remarks on P. margaritifera are equally applicable to this species. It bas been 

 recorded under various names by différent authors, and several ordinary variations from différent 

 localities bave been described as distinct species. 



Distribution : — P. vulgaris bas a wide range in tbe Indo-Pacific, the Persian Gulf and 

 tbe Red Sea. Since the opening of the Suez Canal it bas spread into the Mediterranean ; it bas 

 been recorded from several localities in the Mediterranean littoral of Egypt and from Malta. 



Tbe "Siboga" Expédition collected two rather worn sbells from the Ambon Reef and 

 Dobo, Aru Islands (St. 272). 



3. Pinctada anomioides (Reeve). (Plate III, figs. 5 — 8). 



1857. Avicula Anomioides Reeve, Conch. Icon., X, Avicula, pi. IX, fig. 26. 



1872. Avicula [Meleagrina) anomides (sic) Dunker, in Martini-Chemn. Conch.-Cab. (N. F.), VII (3), 



Avicula, p. 54, pi. XVIII, fig. 6. 

 190 1. Margaritifera anomioides Jameson, Proc. Zool. Soc. London, p. 384. 



Two young sbells in the "Siboga" collection are probably the young of P. anomioides, 

 but it is not possible to be quite definite, as very little is known about this species of unknown 

 habitat. Thèse two shells resemble the sbells from Bazaruto Island from the Ponsonby collection 

 in the British Muséum (Nat. Hist.), London. I figure thèse shells. 



The "Siboga" shells were collected in the Bay of Nangamessi Sumba (St. 53). 



4. Pinctada scheepmakeri (Dunker). (Plate III, figs. 9 — 12). 



1872. Avicula [Meleagrina) Scheepmakeri Dunker, in Martini-Chemn. Conch.-Cab. (N. F.), VII (3), 

 Avicula, p. 6, pi. I, fig. l. 



