255 



1890. Chione recognita Paetel, Cat. Conch. Samm., III, p. 87. 



1896. Chione reeognita Casto de Elera, Cat. Sist. Filip., p. 756. 



1903, Venus recognita Smith, Faun. Geogr. Maldive, Laccadixe Archipel., II, p. 625. 



1903. Chione recognita Hidalgo, Obras Malacol., II, p. 298. 



1905. Chione recognita Hidalgo, Cat. Filip., p. 339. 



1906. Chione recognita Hedley, Proc. Linn. Soc. N. S. Wales, XXXI, p. 466. 



1909. Chione [Omplialoclathrum] recognita Lynge, D. Kgl. Dansk. Vidensk. Selsk. Skr. Nat.- 



Math., (7) V, p. 242. 



19 10. Chione recognita Hedley, Austral. A.ss. Adv. Sci., XII, p. 349. 



191 I. VenjLs pseudomarica Pelseneer, "Siboga" Lamellibranches (Anat.), pp. 52, 53. 



1917. Chione recognita Odhner, Kungl. Svensk. Akad. Handl., LU, N" 16, p. 27. 



1928. Venus [Chione) recognita Faustino, Summary Philippine Mar. Freshw. Moll., p. 71. 



1929. Chione recognita Dautzenberg, Faun. Colon. Français., III, p. 602. 



I agrée with Lynge that Reeve's fig. 104a of Chione [Timocled) viarica is of an adult 

 shell of C. [T.) recognita. The distinguishing characters of the species were described by Smith 

 and Lynge, and it is only necessary to add that the concentric ridges on the surface of its 

 shell hâve "longer, thin, erect lamellae", which are quite prominent on the posterior région of 

 the adult shell, but hardly noticeable on young shells. 



Distribution: — C. [T^ recognita was described from the Philippines, and has since been 

 recorded from the Maldive Archipelago, Gulf of Siam and Mast-Head Reef, Queensland. 



In the "Siboga" collection there are spécimens of this species from Bay of Pidjot, Lombok 

 (St. 33), Sailus Ketjil, Paternoster Islands (St. 37), Bay of Bima (St. 47), south-east side of Pearl 

 Bank, Sulu Archipelago (St. 96), Anchorage off Kampong Kelang, south coast of Manipa Island 

 (St. 184) and Buka or Cyrus Bay, south coast of Rotti Island (St. 299). 



4. Chione [Tiinoclea) scandularis Hedley. 



1909. Chione scandularis Hedley, Proc. Linn. Soc. N. S. Wales, XXXIV, p. 431, pi. XXXVIII, 

 figs. 28, 29. 



191 1. Venus scandularis Pelseneer, "Siboga" Lamellibranches (Anat.), p. 52. 



Hedley's description and figures of Chione [Timoclea] scanditlaris are excellent, but his 

 comparison of this new species with C. [T.) scaôra is not so appropriate. C. {T.) scandîilaris is, 

 on the other hand, very closely allied to C. [T.) sztbnodulosa (Hanley) ^), but its concentric 

 lamellae are neither so raised, nor so beaded, and the escutcheon area is much more extensive 

 and flat and not so narrow and excavated as in the latter species. The shells of C. {T.) scan- 

 dtilaris, further, are less tumid and the umbones are less prominent. 



Distribution: — C. [T.) scandttlaris was described from the Hope Island, North Queens- 

 land, and has also been obtained at other places in the same locality. 



The "Siboga" spécimens of the species were collected at the Anchorage off Djangkar, 

 Java (St. 4), Bay of Bima (St. 47), Kambaragi Bay, Tanah Djampea (St. 64), Macassar (St. 71), 

 west of Kwandang Bay entrance (St. 116) and Lohio Bay, Buton Strait (St. 205). 



5. Chione {Timoclea) subnodtilosa (Hanley)-. 



1845. Venus subnodulosa Hanley, Proc. Zool. Soc. London (volume for 1844), p. 160. 

 1853. Chione subnodulosa Deshayes, Cat. Conch. Brit. Mus., I, Veneridae etc., p. 143. 



i) Hanley, S. — Proc. Zool. Soc. London (Volume for 1844), p. 160 (1845). 



