149 



Remarks : — G. stoliczkana resembles G. obessa Reeve, in shape, but the shell of the 

 new species is much smaller, and more délicate, its anterior side is more produced, and the 

 posterior ridge is sharper and better developed. The sculpture of G. stoliczkana is also much 



more regular. 



Family Isocardiidae. 

 Genus Isocardia Lamarck. 



1799. Isocardia Lamarck, Mém. Soc. Hist. Nat. Paris, p. 86. 



1807. Isocardium Link, Beschreib. Nat. Samm. Univ. Rostock, p. 153. 



181 1. Bucardmiii Megerle, Mag. Ges. Naturf. Freunde Berlin, V, p. 52. 



1845. Isocardia Reeve, Conch. Icon., II, Isocardia, pi. I, (explanation). 



1857. Bucardia Adams, H. & A., Gen. Rec. MolL, II, p. 461. 



1868. Tychocardia Rômer in Martini-Chemn. Conch. -Cab. (N. F.), X (2), Cardiacea, p. 5. 



1887. Isocardia Fischer, P., Man. Conchyliol., p. 1073. 



1900. Isocardia Dali, Trans. Wagner Free Inst. Sci. Philadelphia, III, p. 1064. 



1920. Isocardia Lamy, Journ. Conchyliol., LXIV, p. 290. 



For a detailed description of the genus Isocardia Lam. référence may be made to Lamy's 

 work cited above. The génotype Isocardia cor (Linn.) = Isocardia humana (Linn.), was selected 

 by Children ^). Isocardia s. s., is not represented in the "Siboga" collection, but the other 

 subgenus Meiocardia H. & A. Adams ^) — type Isocardia [Meiocardicc] lamarckii Reeve is 

 represented by four species. 



I. Isocardia {Meiocardia^ moltkiana Spengler. 



1783. Isocardia Moltkiana Spengler, Schr. Berlin Ges. Naturf. IV, p. 321, pi. XIV, figs. i — 4. 



1784. Chaîna Moltkiana etc., Chemnitz, Conch. -Cab., VII, p. 105, pi. XLVIII, figs. 484 — 487. 

 1788. Chaîna Moltkiana^ Schroter, Conch,-Cab. Namen Reg., p. 21. 



1790. Chaîna Moltkiana Gmelin, Syst. Nat., (éd. XIII), p. 3303. 



1^02} Car dita Moltkiana Bosc, Hist. Nat. Coq., III, p. 87. 



1845. Isocardia Moltkiana Reeve, Conch. Icon., II, Isocardia, pi. I, fig. i. 



1847. Isocardia Moltkiana Gray, Proc. Zool. Soc. London, p. 195. 



1850. Isocardia Moltkiana Adams & Reeve, "Samarang" MolL, p. jj, pi. XXII, fig. 3. 



1857. Bucardia [Meiocardia) Moltkiana Adams, H. & A., Gen. Rec. MolL, II, p. 461. 



1860. Isocardia Moltkiana Reeve, Elem. Conch., II, p. 104. 



1868. Isocardia {Meiocardia) Moltkiana Rômer in Martini-Chemn. Conch. -Cab. (N. F.) X (2), 



Carditacea, p. 8, pi. I, figs. 4 — 7. 



1869. Meiocardia Moltkiana Frauenfeld, Verhandl. Zool. -Bot. Ges. Wien. XIX, p. 884. 

 1878. Isocardia [Meiocardia) Moltkiana Kobelt, lUustr. Conchylienbuch, p. 347. 



1881. Meiocardia Moltkiana de Rochebrune, Bull. Soc. Philomat. Paris, (7) VI, p. 13. 



1882. Isocardia Moltkiana Dunker, Ind. MolL Mar. Japon., p. 213. 



1887. Isocardia [Meiocardia) Moltkiana Fischer, P., Man. Conchyliol., p. 1074. 



1890. Isocardia [Meiocardia) Moltkiana Paetel, Cat. Conch. Samm., III, p. 120. 



1891. Isocardia [Meiocardia) Moltkiana Fischer, P., Bull. Soc. Hist. Nat. d'Autun, IV, p. 230. 

 1895. Isocardia moltkiana Pilsbry, Cat. Mar. MolL Japan, p. 130. 



1903. Isocardia Moltkiana Hidalgo, Obras MalacoL, II, p. 363. 



i) Children, J. G. — Quart. Jouin. Sci. Lit. Art., XIV. p. 317 (1822). 

 2) Adams, H. & A. — Gen. Rec. MoU., II, p. 461 (1857). 



