297 



sculpture of their shells. In gênerai form, shape, etc., they agrée with Conrad's description and 

 spécimens identified as C. (C) iostonia in the British Muséum Collections. 



MacAndrew ^) recorded Chaîna rïïppelli Reeve from the Red Sea, but Cooke ^) in his 

 valuable revision of Mac Andrew 's Red Sea Mollusca considered this species to be the same as 

 Chaîna cornucopia Reeve ^). In view of Cooke's notes, the remarks of Odhner (op. cit., p. ^']^ 

 and ToMLiN *) I hâve re-examined the niaterial in the British Muséum (Nat. Hist.), London, 

 and find that the spécimens on which the species C. rïïppelli Reeve was based belong to two 

 distinct subgenera, as now restricted. The figures 30a, b on pi. VI of "Conch. Icon." are of a 

 sinistral Chaîna or Pseudochama of Odhner, while there are other shells also from the Red Sea, 

 labelled C. rïïppelli by Reeve, which are to be referred to C. (C) iostoma Conrad. It is impossible 

 to be certain about MacAndrew's spécimens, but if thèse were dextral, they also must hâve 

 been spécimens of C. (C) iostoma. 



Distribution : — C. [C.) iostoma appears to hâve a wide range in the Indo-Pacific and 

 has also been recorded from the Red Sea. 



The "Siboga" Expédition collected shells of this species from the Wunoh Bay, North-West 

 coast of Waigeu Island (St. 152), Sanana Bay, East coast of Sula Besi (St. 193) and Anchorage 

 off Kilsuin, west coast of Kur Island (St. 250). 



3. Chaîna (Chaîna) jibitla Reeve. 



1846. Chaîna fibiila Reeve, Conch. Icon., IV, Chaîna, pi. V, fig. 27. 



1860. Chama fibula Reeve, Elem. Conch., II, p. 78. 



1880. Chaîna fibiila von Martens, Môbius Beitràge Meeresf. Mauritius, Seychel!., p. 323. 



1884. Chaîna fibitla Grasset, Ind. Test, Viv., p. 277. 



1889. Chama fibula Clessin in Martini-Chemn., Conch. -Cab. (N. F,), VIII (5), Chamiden, p. 50, 



pi. XX, fig. 4. 

 1896. Chaîna {Chaîna) fibula, Casto de Elera, Cat. Sist. Filip., p. 776. 

 1899. Chama fibula Melvill Sz: Standen, Journ. Linn. Soc. London (Zool.), XIII, p. 135. 

 1903. Chaîna fibula Hidalgo, Obras Malacol., I, p. 378. 

 1905. Chaîna fibula Hidalgo, Cat. Filip., p. 349. 

 1909. Chama fibula Melvill, Trans. Linn. Soc. London (ZooL), XIII, p, 135. 



1917. Chaîna fibula Hedley, Proc. Linn. Soc. N. S. Wales, XLI, p. 682. 



191 8. Chama fibula Hedley, Journ. Proc. Roy. Soc. N. S. Wales, LI, Supplément, p. M 17. 

 1825. Chaîna fibula Faustino, Summary Philippine Mar. Freshw. Moll., p. 51. 



1929. Chaîna fibula Dautzenberg, Faune Colon. Français., III, p. 591. 



Chaîna (Chama) fiôtila appears to be a variable species, and probably C. (C) jitkesii 

 Reeve ^) is also based on slightly différent spécimens of this variable species. 



Distribution : — C. (C) Jièula has so far not been recorded from outside the boundaries 

 of the Pacific Océan. 



The "Siboga" Expédition collected shells of this species in the Bay of Bima (St. 47), 

 the Bay of Nangamessi, Sumba (St. 53), Anchorage off North Ubian (St. 99) and at Maccasar. 



i) MacAndrew, R. — Ann. Mag. Nat. Hist., (4) VI, p. 447 (1870). 



2) Cooke, A. H. — Ann. Mag. Nat. Hist., (5) XVIII, p. 96 (1886). 



3) Reeve, L. A. — Conch. Icon., IV, CAawa, pi. VI, figs. 30a, b (1847). 



4) ToMLiN, T. R. LE B. — Trans. Zool. Soc. London, XXVI, p. 305 (1927) 



5) Reeve, L. A. — Conch. Icon., IV, Chama., pi. VII, fig. 39 (1847). 



SIBOGA-EXPEDITIE XXXIII <5. 38 



