194 



The spécimens, which I refer to Dunker's species T. (A.) nitidiila agrée with Dunker's 

 description and figures. The shells are of a small size and thin ; the anterior part is longer than 

 the posterior, and the sculpture consists of very fine, regular concentric rugae. The hinge is of 

 the normal Angzdus-X.^'^ç.. The colour varies from shining white to pink or even rose red. 



Distribution: — T. (A.) nitidtda was described from the Japanese waters. 



The "Siboga" Expédition collected shells of this species from west of Kwandang Bay 

 entrance (St. ii6), Anchorage off Lirung, Salibabu Island (St. 133), between the Islands of Wowoni 

 and Buton, entrance of Buton Strait (St. 204) and Rumah-Kuda Bay, Roma Island (St. 279). 



23. Tellina {^Angiihis) rJiodon Hanley. (Plate V, figs. 37, 38). 



1844. Tellina RJiodon Hanley, Proc. Zool. Soc. London, p. 140. 



1846. Tellina Rliodon Hanley in Sovverby, Thés. Conch., I, p. 297, pi. LVIII, fig. 93. 



1856. Tellina {Angulus) rhodon Adams, H. & A., Gen. Rec. Moll., II, p. 397. 



1860. Tellina rhodon Reeve, Elem. Conch., II, p. 126. 



1868. Tellina [Angulus) rhodon Tryon, Amer. Journ. Conch., IV, p. 94. 



1871. Tellina [Angulus) rhodon Romer in Martini-Chemn., Conch. -Cab. (N. F.), X (4), Tellina, p. 1 59. 



1878. Tellina [Homnla) rhodon Bertin, Nouv. Arch. Mus. d'Hist. Nat. Paris, (2) I, p. 302. 



1890. Tellina [Tellinella) rJiodon Paetel, Cat. Conch. Samm., III, p. 50. 



1903. Tellina Rhodon Hidalgo, Obras Malacol., II, p. 135. 



1905. Tellina Rhodon Hidalgo, Cat. Filip., p. 316. 



1928. Tellina [Tellinella) rhodon Faustino, Summary Philippine Mar. Freshw. Moll., p. 89. 



A right and a left valve, which I refer to T. (A.) rhodon, agrée with Hanley's description 

 and figures of the species. I figure the tvvo valves. 



Distribution: — T. (A.) rhodon was described from shells of unknown habitat, but 

 Hidalgo and Faustino hâve included this species in the Philippine List. 



The "Siboga" Expédition collected two stray valves from the Anchorage off Djangkar, 

 Java (St. 4) and Ruma-Kuda Bay, Roma Island (St. 279). 



24. Tellina [Peroiiidid] a s simili s Hanley. 



1844. Tellina assiinilis Hanley, Proc. Zool. Soc. London, p. 144. 



1846. Telli)ia assiinilis Hanley in Sovverby, Thés. Conch., I, p. 302, pi, LVIII, fig. 95. 

 1856. Tellina [Tellinella) assiniilis Adams, H. & A., Gen. Rec. Moll., II, p. 395. 

 1860. Tellina assiniilis Reeve, Elem. Conch., II, p. 125. 



1867. Tellina assiniilis Sowerby in Reeve, Conch. Icon., XVII, Tellina, pi. XXXIV, fig. 191. 



1868. Maconia [Peronaea) assimilis Tryon, Amer. Journ. Conch., IV, p. 97. 



1873. Tellina [Macoma) assimilis Romer in Martini-Chemn., Conch. -Cab. (N. F.), X (4), Tellina, 



p. 263. 

 1878. Tellina [Honiala) assimilis Bertin, Nouv. Arch. Mus. d'Hist. Nat. Paris, (2) I, p. 286. 

 1890. jSIacoma assimilis Paetel, Cat. Conch. Samm., III, p. 53. 

 1896. Tellina [Macoma) assimilis Casto de Elera, Cat. Sist. Filip., p. 731. 

 1903. Tellina assimilis Hidalgo, Obras Malacol., II, p. 135. 

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

 1928. Tellina [Tellina) assimilis Faustino, Summary Philippine Mar. Freshw. Moll., p. 84. 



The fairly large séries of shells of ail âges collected by the "Siboga" Expédition agrée 

 with Hanley's types of T. assimilis in ail respects. T. assimilis appears to be closely allied to 

 T. {P.) truticatula Sowerby, and I hâve, therefore, referred it to the subgenus Peronidia Dali. 



