312 



igoç- Solecurtiis [Azor) emarginattis (ex parte) Lynge, D. Kgl. Dansk. Vidensk. Selsk. Skr. 

 Nat.-Math. (VII) V, p. 279. 



1910. PsaviiJiosolen coarctatiis Hedley, Austral. Ass. Adv. Sci., XII, p. 351. 



I hâve examined the collections of the genus Solecîirhis in the British Muséum (Nat. Hist.), 

 London, and am able to confirm Smith's conclusions about S. abbreviatics. Alacha sheepniakeri^ 

 Azor oôlongîis and A. solidus being ail synonyms of S. [A.) coarctahis. Novaculhia andamanensis 

 Preston is also based on a young shell of this species. 



S. (/4.) coarctahis is distinguished by a narrow depressed ray which runs obliquely across 

 the middle of the valves. 



Distribution : — .S. {A.) coarctahis is widely distributed in the Indo-Pacific. 



In the "Siboga" collection it is represented by stray valves collected in the Bay of Bima 

 (St. 47), Bay of Badjo, west coast of Timor (St. 50) and Waru Bay, North coast of Ceram (St. 1 74). 



Genus Cultellus Schumacher. 



181 7. Cultellus Schumacher, Essai Nouv. Conch., p. 130. 

 1845. Cultellus Cray, Ann. Mag. Nat. Hist., (2) XIV, p. 24. 

 1856. Cultellus Adams, H. & A., Gen. Rec. Moll., II, p. 344. 



1860. Eniscidus Adams, H., Proc. Zool. Soc. London, p. 369. 



1874. Cultellus Sowerby in Reeve, Conch. Icon., XIX, Cultellus pi. I (explanation). 



1887. Cultellus Fischer, P., Man. Conchyliol., p. i 109. 



1897. Cultellus von Martens in Weber's Zool. Ergebn. Reise Ost-Ind., IV, Sùss.-Brackw., 



Moll., p. 263. 

 1900. Cultellus Dali, Trans. Wagner Free Inst. Sci. Philadelphia, III, p. 957. 



I agrée with Dall that Enisciiliis H. Adams, is synonymous with Cultellus, s. s. The 

 génotype has been accepted as Cultellus lacteus (Spengler) = Ciiltellus vtaxiinus (Gmelin), but 

 in accordance with the strict application of the Rules of zoological nomenclature Cultellus cultellus 

 (Linnaeus) should be taken as the génotype. 



I. Ctiltelhis [Cultellîis) cultellus (Linnaeus) var. lividus Dunker. 



1861. Cultelhis lividus Dunker, Proc. Zool. Soc. London, p. 423. 

 1867. Cultellus lividus Conrad, Amer. Journ. Conch., III, p. 26. 



1874. Cultellus lividus Sowerby in Reeve, Conch. Icon., XIX, Cultellus, pi. I, figs. \a, b. 



1888. Cultellus lividus Clessin in Martini-Chemn. Conch-Cab. (N.F.), XI (3) Solenaceen, p. 40, 



pi. XIV, fig. 4. 

 1890. Cultellus lividus Paetel, Cat. Conch. Samm., III, p. 12. 

 1896. Cultellus lividus Casto de Elera, Cat. Sist. Filip., p. 707. 

 1903. Czdtellus lividus Hidalgo, Obras Malacol., II, p. 22. 

 1905. Cultellus lividus Hidalgo, Cat. Filip., p. 292. 

 1909. Cultelhis [Eniscidus) cultelhis (ex parte) Lynge, D. Kgl. Dansk. Vidensk. Selsk. Skr. 



Nat.-Math., (7) V, p. 276. 



1911. Cultellus cultellus Pelseneer (nec. Linn.), "Siboga" Lamellibranches (Anat.), pp. 64,65, 



pi, XXII, fig. 6. 



I agrée with von Martens ^) that Dunker's species C. lividus is only a variety of the 

 highly variable Cziltellus cultellus. In this variety the shells are more inflated, the dorsal and 



i) Von Martens, E. — in Weber's Zool. Ergebn. Reise Ost-Ind., IV, Siiss.-Brackw. Moll., p. 270 (1897). 



