240 144 



Tapes {Amggtlale) indica, Hanley. Römer, Monogr d. Moll. Venus, II, p. 7;"), pi. 26, fig. 1. 



— Indiens, Hanley, Hidalgo, Obras malacologicas, I, torn. II, 1903, p. 273, No. 369. 



— dentictilata, Sowerby, Thesaurus Conchyl., II, p. 694, No. 53, pi. 150, fig. 114. 



— — — Reeve, Conchol. icon., XIV, Tapes, Sp. 63. 



— {Amijgdale] denticulata, Sowerby, Römer, Monogr. d. Moll. Venus, II, p. 74, pi. 25, fig. 3. 



— semidccussata. Deshayes, Reeve, Conchol. icon., XIV, Tapes, Sp. 67. 



— [Amygdale] semideeussata, Deshayes, Romer, Monogr. d. Moll. Venus, II, p. 79, pi. 28, fig. 1. 



— — ducalis, Römer, Monogr. d. Moll. Venus, II, p. 81, pi. 28, fig. 3. — Malakozool. Rlätter, 



XVII, 1870, p. 9, No. 7. 



— — — — LiscHKE, Japan. Meeres Conchyl., Ill, pi. 5, figs. 17 — 20. 



Strand of Koh Kahdat (V-j worn specimen). Coast of Koh Chang (2). 



Long. 14—27 mm. 



Distribution: — Andamans, Ceylon, Bombay, Karachi. — Philippines, China, 

 Formosa, Korea, Japan, Sachalin, South Sea Islands (Mus. Godeffroy). 



The variability of this species has not yet been sufficiently investigated. It 

 comes near T. variegatus, Sow., and the European T. decussatiis L. Jeffreys ' even 

 thinks that "it is impossible to separate the so-called T. indiens from T. decussatas 

 by any other than a geographical character." 



Tapes (Ruditapes) variegatus, Hani. 



Tapes variegata, Hanley, Sowerby, Thesaurus conchyl., II, 1855, p. 696, No. 61, pi. 151, figs. 133 and 

 136-38 (figs. 134— 35 = T. puniceus, Desh.). 



— — — Reeve, Conchol. icon., XIV, Sp. 64. 



Venus — — Martini u. Chemnitz, Conchyl. Cabin., XI Bd., 1 Abth., p. 223, pi. 38, figs. 2— 5. 



Tapes variegatus, Sowerby, Lischke, Japan. Meeres-Conchyl., I, p. 118; III, p. 79. 



— variegata, — Römer, Monogr. d. Moll. Venus, II, p. 78, pi. 27, fig. 2. 



— (Cnneus] variegatus, Hanley, Dunker, Index molluscor. mar. Japon., p. 207. 



— variegatus, Sowerby, Morlet, Journ. de Conchyl., vol.37, 1889, p. 170, No. 71. 



— — Hanley, Hidalgo, Obras malacologicas, I, torn. II, 1903, p. 724, No. 370. 



The strand of Koh Kahdat ('/2). Koh Mak, sandy coast (W2). 

 Long. 15—18 mm. 

 "Golfe de Siam" (Morlet). 



Distribution: — Salanga, Mergui Archip. — Philippines, Hong Kong, Japan, 

 Java, Port Curtis, Port Denison, Samoa Isis., Tahiti. 



I think that T. violascens, Desh., can scarcely be separated from T. variegatus, Sow. 



Tapes (Parembola) radiatus, Ch. 



Venus lilerata, radiata, Chemnitz, Conchyl. Cabin., VII, 1784, p. 45, pi. 42, fig. 439. 

 Tapes aspersa. Reeve, Conchol. icon., XIV, Tapes, Sp. 5 (non Chemnitz). 



— radiata, Chemnitz, Römer, Monogr. d. Moll. Venus, II, p. 41, pi. 14, fig. 3. 



Venus — — Peeiffer in Martini u. Chemnitz, Conchyl. Cabin., XI, 1 Abth., p. 160, No. 28, 



pi. 15, fig. 1. 

 Tapes radiatus, — L. Morlet, Journ. de Conchyl., vol.37, 1889, p. 170, No. 70. 



— — — Hidalgo, Obras malacologicas, I, tom. II, 1903, p. 245, No. 346. 



' The Journal of the Linnean Society, Zoology, vol. XII, 1876, p. 105. 



