252 



l882. Vemis toreuma Dunker, Ind. Moll. Mar. Japon., p. 196. 



1884. Venus toreuma Grasset, Ind. Test. Viv., p. 263. 



1884. Venus toreuma Smith, Rept. Voy. „Alert", p. 93. 



1890. Chione {Charnelaea) Jukesi and Chione [Omphaloclathrum] toreuma Paetel, Cat. Conch. 



Samm., III, pp. 86, 88. 



1899. Venus toreuma Hedley, Mem. Austral. Mus., III, pp. 501, 529. 



1899. Cluone [Omphaloclathrum) toreuma Melvill & Standen, Journ. Linn. Soc. London (Zool.), 



XXVII, p. 196. 



1903. Venus toreuma Smith, Faun. Geogr. Maldive Laccadive Archipel., II, p. 625. 



1903. Venus tourema (sic) Hidalgo, Obras Malacol., II, p. 288. 



1905. Venus tourema (sic) Hidalgo. Cat. Filip., p. 337. 



1906. Chione toreuma Hedley, Proc. Linn. Soc. N. S. Wales, XXXI, p. 466. 

 1905. Venus toreuma Owston, Japan. Loochooan Shells, p. 38. 



1909. Venus [Ventricola) toreuma Lynge, D. Kgl. Dansk. Vidensk. Selsk. Skr. Nat. Math., 

 (7) V, p. 247. 



1909. Venus [Omphaloclathrutn] toreuma Melvill, Trans. Linn. Soc. London (Zool.), XIII, p. 133- 



1910. Cytherea toreuma Hedley, Austral. Ass. Adv. Sci., XII, p. 349. 



191 1. Venus toreuma Pelseneer, "Siboga" Lamellibranches (Anat.), pp. 52, 53, pi. XIX, fig. 5- 

 1916. Antigona toreuma Hedley, Journ. Proc. Roy. Soc. West Australia, I, p. 165. 



1928. Venus jukesi and V. toreuma Laustino, Summary Philippine Mar. Freshvv. Moll., pp. 69, 70. 

 1929 Chione toreuma Dautzenberg, Faun. Colon. Français., III, p. 603. 



I hâve examined the types of Vernis jukesi Deshayes, and can find no différences between 

 thèse and typical shells of A. (C) toreuma. 



Distribution : — A. (C) toreuma is a wide spread Indo-Pacific species. A list of previous 

 records of this form was published by Lynge. 



In the "Siboga" collection it is represented by a few young shells from the Bay of Badjo, 

 west coast of Flores (St. 50), Bank between the islands of Bahuluwang and Tambolungan, south 

 of Saleyer (St. 66), St. 164 (i°42'.5 S., i30°47'.5 E.) and Ruma Kuda Bay, Roma Island (St. 279). 



Genus Chione Megerle. 



181 1. Chione Megerle, Mag. Ges. Naturf. Freunde Berlin, V, p. 51. 



1857. Chione Adams, H. & A., Gen. Rec. Moll., II, p. 420. 



1857. Anaitis Romer, (ex parte), Krit. Untersuch., p. 16. 



1902. Chione Dali, Proc. U. S. Nat. Mus., XXVI, p. 357. 



1903. Chione Dali, Trans. Wagner Free Inst. Sci. Philadelphia, III, p. 1286. 

 1914. Chione Jukes-Browne, Proc. Malacol. Soc. London, XI, p. 79. 



1925. Chione Woodring, Miocène Mollusks from Bowden, Jamaica, Pelecypods etc., p. 159. 

 1930. Chione Stewart, Spécial Publication Acad. Nat. Sci. Philadelphia, IV, p. 220. 



The genus Chione Megerle has been well defined recently by Woodring, and Stewart 

 has discussed the question of its génotype; I agrée with him that it is Chione cancellata (Linn.) 

 based on Venus dysira Chemnitz. 



Chione s. 5., is not represented in the "Siboga" collection, but there are species of the 

 subgenera Timoclea Brown ^), type — Chione [Timoclea) ovata (Pennant) and Clausinella Gray"), 

 type — Chione {Clausinella^ fasciata Da Costa. 



1) Brown, t. — lUustr. Conch. Great Britain Iieland, Explanation, pi. XIX, fig. ii (1827). 



2) Gray, J. E. — List. Brit. Anim. Brit. Mus., pt. 7, p. 12 (1851). See also Dai.i,, W. H., op. cit., p. 1288 (1903). 



