313 



ventral margins are not so arcuate and the valves at the anterior end gape more strongly than 

 in the typical C. ctiltellus. 



Distribution : — C. (C) citltelhis var. lividtis was described from the Philippines. 



In the "Siboga" collection it is represented by a good séries of shells collected in the 

 Madura Strait (St. 2), Bay of Badjo, west coast of Flores (St. 50), Saleyer (St. 71), between 

 Loslos and Broken Island, west coast of Salawatti (St. 162) und Saleyer Anchorage (St. 213). 



2. CtLltelhis [Cultellus] maximus (Gmelin). 



782. Legumimirn maxima etc. Chemnitz, Conch.-Cab., VI, pp. 39, 51, pi. V, fig. 35. 

 788. Legumimi-m maxima Schroter, Conch.-Cab. Namen Reg., p. 57. 

 790. Solen maximus Gmelin, Syst. Nat., (éd. XIII), p. 3227. 

 793. Solen lacteiis Spengler, Skrivt. Nat. Selsk., III, p. 94. 



797. Bruguière, Encyclopéd. Méthod., pi. CCXXIII, fig. 5. 



798. Solen Nicobaricus Roding, Mus. Boltenianum, p. 155. 

 817. Solen magnus Dillwyn, Descr. Cat., I, p. 61. 



817. Solen magnus Schumacher, Essai Nouv. Syst., p. 130, pi. VII, figs. 4a, b. 



818. Solen planus Lamarck, Anim. sans Vertèb., p, 453. 



824. Solen planus Dubois, Epitome, p. 40. 



825. Solen planus Sowerby, Cat. Tankerville, p. 5. 

 825. Solen magnus Wood, Ind. Test., p. 15, pi. III, fig. 17. 

 827. Solen plamt-s Blainville, Dict. Sci. Nat., XLIX, p. 427. 

 832. Solen planus Deshayes, Encyclopéd. Méthod., II, p. 960. 



835. Solen planus and 5. maximus Deshayes in Lamarck Anim. sans Vertèb., VI pp. 56, 57. 



840. Solen plamis Pfeifter, Krit. Reg., p. 56. 



843. Solen planus Chenu, lUustr. ConchylioL, Solen, pi. II, fig. 3. pi. V, fig. 7. 



843. Solen Planus Hanley, Rec. Biv. Shells, p. 13. 



853. Solen [Cultellus) maximus Philippi, Handbuch Malakol., p. 331. 



853. Cultellus viaximus Morch, Cat. Yoldi, II, p. 7. 



856. Cîdtellus maximus Adams, H. & A., Gen. Rec. MolL, p. 345. 



858. Cultellus orientalis and C. maximus Dunker, Novitat. Conch. I, p. 10, pi. III, fig. 3, 



p. II, pi. III, fig. 4. 

 860. Solecurtus maximus Reeve, Elem. Conch,, II, p. 165. 

 862. CiUtelhis planus Chenu, Man. ConchylioL, II, p. 23, fig. 100. 

 874. Cultellus lacteus and C. maximus Sowerby in Reeve Conch. Icon., XIX, Cîdtellus, pi. i, 



figs. 2, 3. 

 884. Cîdtellus maximus Grasset, Ind. Test. Viv., p. 242. 

 888. Cultellus maximus and C. plajius dessin in Martini-Chemn., Conch.-Cab. (N. F.), XI (3) 



Solenaceen, p. 17, pi. XVI, fig. 4, p. 48, pi. V, fig. 6. 

 890. Cîdtellus lacteus, C. maximus, and C. planus, Paetel, Cat. Conch. Samm., III, pp. 12, 13. 

 897. Cultellus maximus von Martens, in Weber's Zool. Ergebn. Reise Ost-Ind., IV, Siiss- 



Brackw. MolL, p. 263. 



There can be no doubt that C. lacteus, C. planus and C. orientalis are ail synonyms 

 of C. maximus. The species is very variable, and exhibits a certain amount of variation in the 

 form and sculpture of the shells. 



Distribution : — C. (C) magnus has a wide range in the Indo-Pacific. 



In the "Siboga" collection there is a single young left valve of this species collected in 

 Ketapang Bay, west coast of Kangeang Island (St. 317). 



SIBOGA-EXPEDITIE LIIIC. 



40 



