i87 



1896. Tellina [Acropagia sic) capsoides Casto de Elera, Cat. Sist. Filip., p. 724. 



1898. Tellina capsoides Melvill & Sykes, Proc. Malacol. Soc. London, III, p. 47. 



1903. Tellina Capsoides Hidalgo, Obras Malacol., II, p. 114. 



1905. Tellina Capsoides Hidalgo, Cat. Filip,, p. 313. 



1906. Tellina [Arcopagid) capsoides Melvill & Standen, Proc. Zool. Soc. London, p. 821. 



1909. Tellina [Arcopagia) capsoides Lynge, D. Kgl. Dansk. Vidensk. Selsk. Skr. Nat. Math., 



(7) V, p. 189. 



1910. Tellina capsoides Hedley, Austral. Ass. Adv. Sci., XII, p. 349. 



1928. Tellina capsoides Faustino, Summary Philippine Mar. Freshw. MolL, p. 84. 



1929. Tellina capsoides Dautzenberg, Faun. Colon. Français., III, p. 625. 



Tellina [Arcopagia) capsoides appears to be a highly variable species. The outline of the 

 shell is very variable and the sculpture also differs a great deal in shells of différent âges. 

 With the séries of shells of this species, which I hâve been able to examine, I hâve no doubt 

 that Tellina denticulata Deshayes ^) and Tellina thymares Melvill ") are synonyms of T. [A.) 

 capsoides. Lynge (op. cit., p. 189) has suggested that Tellina negrosiensisV . Bertin "'') scarcely 

 differs specifically from T. (A.) capsoides, and with larger séries of shells it may be possible to 

 unité T. {A.) p7^islis Lam. *) and T. [A.) siamensis von Martens ^) also with this species*^). 



Distribution: — T. {A.) capsoides has a very wide range in the Indo-Pacific, and has 

 also been recorded from the Red Sea. 



The "Siboga" Expédition collected a single shell from the Anchorage off Dongala, Palos 

 Bay, Celebes (St. 86). 



14. Tellina [Arcopagid) subelliptica Sowerby. 



1867. Tellina subelliptica Sowerby in Reeve, Conch. Icon., XVII, Tellina, pi. XXXIX, figs. 220a, b. 



1867. Tellhia subelliptica Angas, Proc. Zool. Soc. London, p. 918. 



1868. Macoina subelliptica Tryon, Amer. Journ. Conch., IV, p. 103. 



1878. Arcopagia subelliptica Bertin, Nouv. Arch. Mus. d'Hist. Nat. Paris, (2) I, p. 323. 

 1890. Maconia subelliptica Paetel, Cat. Conch. Samm., III, p. 55. 



I cannot understand why Tryon included Tellina subelliptica of Sowerby in the genus 

 Macoma Leach. This species has the typical Arcopagia-typç. of sculpture and hinge, and does 

 not suggest any relationship to species of the genus Macoma. 



Distribution: — T. [A ^ subelliptica was described from spécimens dredged at Port Jackson, 

 New South Wales, and has since been recorded from New Guinea and New Caledonia. 



The "Siboga" Expédition collected typical shells in the Anchorage off Djangkar, Java (St. 4), 

 Tuai Anchorage, Kei Islands (St. 258) and Anchorage east of Dangar Besar, Saleh Bay (St. 313). 



15. Tellina [Arcopagid) casta Hanley. 



■ 1844. Tellina casta Hanley, Proc. Zool. Soc. London, p. 63. 

 1845. Tellina casta Catlow & Reeve, Conch. Nomencl., p. 22. 



i) Deshayes, G. P. — Proc. Zool. Soc. London, (volume for 1854), p. 365 (1855). 



2) Melvill, J. C. — Proc. Malacol. Soc. London, pt. II, p. 116, pi. VIII, fig. 9 (1896). 



3) Bertin, V. — Nouv. Arch. Mus. d'Hist. Nat. Paris, (2) I, p. 250, pi. VIII, figs. 6, a, (5 (i?78). 



4) Lamarck, J. B. — Anini. sans Vertèb., V, p. 531 (1818). 



5) Von Martens, E^ ■ — Proc. ZooL Soc. London, p. 18 (1860). 



6) According to Lamy, E. — Bull. Mus. d'Hist. Nat. Paris, XXIV, p. 29 (1918), Jousseaume proposed to separate T.{A.) prisiis., 

 T. (A.) capsoides and other allied species under the generic name Pristis.^ but this is hardly necessary in view of thèse species being 

 typical Aj-copagia. 



