2 14 



1868, Cytherea lusoria, C. iiieretrix, C. iiiipudica and C. petecliialis Pfeiffer in Martini-Chemn., 



Conch.-Cab. (N. F.), XI, (i) Veneracea, p. 13, pi. I, fig. 6; p. 15, pi. III, figs. 4 — 6, 

 8, 9; p. 17, pi. III, fig. 7; pi. IV, fig. 1—4. 

 l86g. Meretrix castanea, M. impudica, M. morphina and M. petechialis Frauenfeld, Verhandl. 

 Zool. Bot. Ges. Wien, XIX, p. 882. 



1869. Cytherea meretrix Lischke, Japan. Meeresconch., I, p. 122, 



1869. Meretrix niorpliina and M. zonaria Adams, A., Ann. Mag. Nat. Hist. (4) III, p. 231. 



1871. Cytherea meretrix Lischke, Japan. Meeresconch., II, p. 108. 



1878. Cytherea [Meretrix) meretrix and C. [M.) petechialis Y^o\)ç\\., IlJustr. Conchylienbuch, p. 334, 



pi. XCVIII, fig. I. 

 1882. Cytherea [Meretrix) lusoria, C. [M.) meretrix and C. [M.) morpliina Dunker, Ind. Moll. 



Mar. Japon., p. 199. 

 1884. Cytherea petechialis Tryon, Struct. Syst., Conch., III, p. 177, pi. CXIII, fig. 20. 

 1887. Cytherea petechialis Dautzenberg & d'Hamonville, Journ. Conchyliol., XXXV, p. 225. 



1889. Meretrix petechialis Morlet, Journ. Conchyliol., XXXVII, p. 169. 



1890. Meretrix petechialis Grosse & Fischer, P., Journ. Conchyliol., XXXVIII, p. 18. 



1891. Meretrix petechialis, M. lusoria, M. zonaria and M. impudica Fischer, P., Bull. Soc. Nat. 



Hist. d'Autun, IV, p. 232. 



1892. Cytherea [Meretrix) meretrix Bottger, O., Nachrichtsbl. Deutsch. Malakozool. Ges., XXIV, 



p. 168. 



1893. Meretrix morphina and vars. castanea, petechialis and impudica Melvill & Abercrombie, 



Mem. Proc. Manchester Lit. Phil. Soc, (4) VII, p. 29. 



1895. Meretrix meretrix, M. morphina and M. lusoria Pilsbry, Cat. Mar. Moll. Japan, pp. 126, 127. 



1896. Meretrix petecliialis, M. impudica, M. morphina, M. graphica and M. castanea Casto de 



Elera, Cat. Sist. Filip., pp. 737 — 739. 



1897. Cytherea meretrix von Martens, Weber's Zool. Ergebn. Reise Ost-Ind., IV, Sùss.-Brackw. 



Moll., p. 291. 



1898. Meretrix castanea Melvill & Standen, Journ. Conch., IX, p. 82. 



1903. Meretrix petechialis, M. Meretrix, M. impudica, M. morphina and M. graphica Hidalgo, 



Obras Malacol., II, pp. 178, 179, 184, 187, 188. 

 1905. Meretrix petechialis, M. Meretrix, M. impudica, M. morphina and M. graphica Hidalgo, 



Cat. Filip., pp. 324, 325. 



1905. Meretrix meretrix Dautzenberg, P. & Fischer, H., Journ. Conchyliol., LUI, pp. 216, 461. 



1906. Meretrix 7neretrix Dautzenberg, P. & Fischer, H., Journ. Conchyliol., LIV, p. 216. 

 1906. Meretrix impudica and vars. castanea^ morphina, M. petechialis and M. zonaria Melvill & 



Standen, Proc. Zool. Soc. London, p. 829. 

 1906. Meretrix meretrix, M. morphina and M. lusoria vdiV. petecliialis Owston, Japan. Loochooan 



Shells, p. 38. 

 1909. Meretrix lusoria Lamy, Bull. Mus. d'Hist. Nat. Paris, XV, p. 468. 

 1909. Cytherea [Meretrix) meretrix Lynge, D. Kgl. Dansk. Vidensk. Selsk. Skr. Nat. Math., 



(7) V, p. 169. 



1916. Meretrix 7neretrix Annandale & Kemp, Mem. Ind. Mus., V, pp. 333, 351. 



1917. Meretrix meretrix and vars. impudica, castanea, aurora, zonaria and morphina Hornell, 



Rec. Ind. Mus., XIII, pp. 155 — 163, pi. V, figs. 13; 14 — 18; pi. VII, figs. 39 — 40; 



pi. IV, fig. 12; pi. IV, figs. 9— II; pi. IV, figs. 5—8. 

 1925. Meretrix meretrix Oostingh, Geol. Comm. Agr. Univ. Wageningen, N" 9, p. 281. 

 1928. Meretrix graphica, M. impudica, M. lusoria, M. meretrix, M. morpliina and M. petechialis 



Faustino, Sunrimary Philippine Mar. Freshw. Moll., p. 72. 



Meretrix meretrix is probably one of the most variable bivalves and shells slightly 

 varying in colour and form hâve been described as distinct species. Dautzenberg and Fischer 

 critically studied the différent variations of M. meretrix^ and shortly described the distinguishing 

 characters of the colour varieties typica^ castanea^ graphica and petechialis. Hornell later 

 published a useful revision of the Indian species of Meretrix. 



