157 



iSqi. Lucina [Codakia] exasperata Smith, Proc. Zool. Soc. London, p. 42g. 

 1893. Lucina exasperata Dautzenberg, Bull. Soc. Zool. France, XVIII, p. 84. 



1896. Lucina [Codakia] exasperata Casto de Elera, Cat. Sist. Filip., p. 779. 



1897. Lncina exasperata Sowerby, Mar. Shells S. Africa, Supplément, p. 26. 



1898. Lancina [Codakia] exasperata Melvill & Sykes, Froc. Zool. Soc. London, p. 46. 



1899. Lxicina [Codakia] exasperata Melvill & Standen, Journ. Linn. Soc. London (Zool.), XXVII, 



p. 200. 



1899. Lucina exasperata Hedley, Mem. Austral. Mus., III, p. 496. 



1900. Codakia exasperata Newton, Geol. Mag., VII. p. 552. 



190 1. Lucina tigerina Dali, Proc. U. S. Nat. Mus., XXIII, p. 798. 



1902. Lucina exasperata Shopland, Proc. Malacol. Soc. London, V, p. 178. 



1905. Lîicina exasperata Hidalgo, Cat. Filip., p. 353. 



1906. Codakia exasperata Hedley, Proc. Linn. Soc. N. S. Wales, XXXI, p. 465. 

 1906. Loripes [Codokia] exasperata Lamy, Bull. Mus. d'Hist. Nat. Paris, XII, p. 212. 

 1906. Lucina exasperata Owston, Japan. Loochooan Shells, p. 36. 



1906. Lucina [Codakia] exasperata Melvill & Standen, Proc. Zool. Soc. London, p. 815. 



1909. Lucina [Codokia] exasperata Lamy, Mém. Soc. Zool. France, XXII, p. 344. 



1910. Codakia exasperata Hedley, Austral. Ass. Adv. Sci., XII, p. 347. 



191 5. Cytlierea tigerina Lamy (ex parte), Bull. Mus. d'Hist. Nat. Paris, XXI, p. 159. 



1916. Codokia tigerina and C. Gaulterii Lamy, Bull. Mus. d'Hist. Nat. Paris, XXII, p. 183. 

 1921. Codokia tigerina Lamy, Journ. Conchyliol., LXV, p. 239. 



1928. Lncina exasperata Faustino, Summary Philippine Mar. Freshw. MolL, p. 53. 



1929. Codokia tigerina Dautzenberg, Faun. Colon. Français., III, p. 623. 



The common Indo-Pacific species which was figured and described as Litcina exasperata 

 by Reeve, is, as bas been rightly pointed out by Dall and Lamy, synonymous with Codakia 

 tigerina (Linn.). Reeve's C. tigerina (op. cit., pi. I, fig. 3) is, however, C. orbicularis (Linn.). 



The suborbicular and somewhat svvollen shell of this species is much more curved along 

 the anterior than the posterior dorsal margin. The surface of the valves is covered by moderately 

 raised concentric and radial ridges, which produce a decussated pattern and at their points of 

 intersection small, elongated nodular areas. 



Distribution: — C. tigerina is a widely distributed species of the Indo-Pacific Région. 



In the "Siboga" collection there is a single shell of the species collected at the Anchorage 

 off Kilsuin, v^est coast of Kur Island (St. 250). 



3. Codakia divergens (Philippi). 



1850. Lucina divergens Philippi, Abbild. Beschreib. Conch., III, p. 103, Lucina, pi. II, fig. 4. 



1850. Lucina fibula Reeve, (ex parte), Conch. Icon., VI, Lucina, pi. VII, figs. 37, 38. 



1850. Lucina fibula Adams & Reeve, Zool. Voy. "Samarang", MolL, p. 80, pi. XXIV, fig. 5- 



1850. Lucina ramulosa Gould, Proc. Boston Soc. Nat. Hist., III, p. 255. 



1852. L?icma ramulosa Gonld, U.S. Explor. Exped., MolL, p. 415, pi. XXXVI, figs. 523, 523^,(5. 



1856. Lucina [Codakia] viunda Adams, A., Proc. Zool, Soc' London (vol. for 1855), p. 225. 



1857. Lucina [Codakia] fibula Adams, H. & A., Gen. Rec. MolL, II, p. 468. 



1858. Lucina fibula Fischer, P., Journ. Conchyliol., VII, p. 337. 



1860. Lucina fibula Reeve, Elem. Conch., II, p. 123. 



1861. Lucina fibula Dunker, MolL Japon., p. 28. 



1862. Lucina [Codakia] ramulosa, Gould, Otia Conch.. pp. 82, 246. 



1863. LMcina Reevei, L. minuata and L. fibida Deshayes, Cat. MolL Réunion, p. 19, pi. III, 



figs. 8, 9, p. 20, pi. III, figs. 4—7. 

 1869. Lucina Reevei Issel, Malacol. Mar. Rosso, pp. 83, 225. 

 1869. Lucina [Codakia] fibula Dunker, Cat. Mus. Godeffroy, IV, p. 113. 



