REPOKT ON THE GASTEROPODA. 395 



9. Triton (Lagcna) magellanicus (Chemnitz). 



Murex magellankus, Chemnitz, Conch. Cab., vol. x. p. 275, pi. clxiv. fig. 1570. 



„ „ Dillwyn, Cat., vol. ii. p. 725, sp^ 87. 



Triton cancellatum, Lamarck, Anim. s. vert., vol. vii. p. 187, and (ed. Desh.) vol. ix. p. 638, sp. 24. 



„ ,, Encycl. method., vers, pL ccccxv. fig. 1. 



„ „ Kiener, Iconog., p. 35, sp. 36, pi. xvi. fig. 1. 



Fusus cancellatus, Reeve, Conch. Icon., vol. v. pi. xvi. fig. 62. 



Triton (Argobuccinum) cancellatus, Kobelt, Jahrb. deutsch. malak. Gesellsch., 1878, p. 368, sp. 112. 

 cancellatus, Kobelt, Conch. Cab. (ed. Kiister), p. 246, sp. 94, pi. lxvi. fig. 1. 



„ (Priene) cancellatus, Tryon, Manual, vol. iii. p. 34, pi. xvi. figs. 164-167, pi. xvii. figs. 170-172. 



Station 144a. December 26, 1873. Lat. 46° 48' S., long. 37° 49' 30" E. Off Marion 

 Island. 69 fathoms. Volcanic sand. 



Station 309 (?). January 5, 1876. Lat. 50° 56' S., long. 74° 15' W. ■ South-west 

 Patagonia. 40 fathoms. Blue mud. 



Habitat. — Straits of Magellan (Chemnitz) ; Cape Horn (British Museum). 



The Mur&c magellanicus of Lamarck having recovered its proper specific name of (Trophon) 

 geversianus, given it by Pallas, there is no excuse for following Lamarck in depriving this Triton of 

 the name given it by Chemnitz, and that the more since there are scabrous questions of priority as to 

 the name Murex cancellatus which were better avoided altogether. 



Mr Tryon (loc. cit.) quotes Dr P. Carpenter in support of his opinion that Triton oregonensis, Redfield, 

 is synonymous with this species. Mr Tryon, however, overlooks the fact that it is with Triton cancel- 

 latus, von Middendorff, " not Lamarck," that Dr Carpenter accepts Triton oregonensis as synonymous. 

 This any one will see on consulting the British Association Report on Moll. W. Coast N. America, 

 1863, pp. 532, 534, 563, 583, 613, 661, 683. The whole subject is exhaustively treated by Lischke, 

 Japan. Meer. Conch., vol. ii. p. 166, and vol. iii. p. 31. 



10. Triton (Lagcna,), n. sp. 



Station 145. December 27, 1873. Lat. 46° 43' S., long. 38° 4' 30" E. Between 

 Marion Island and Prince Edward Island. 140 fathoms. Volcanic sand. 



This shell is not full-grown, and has the pillar a little broken, It extremely resembles Triton 

 magellanicus, Chemnitz, from Patagonia, but it is shorter in the spire, the sculpture is not identical, 

 the embryonic apex is a little larger, higher, and marked with three slightly raised spiral threads, and 

 the pillar is distinctly shorter. The young shells of this section of the genus are peculiarly difficult of 

 identification, but the apex is unmistakably that of a Triton. 



11. Triton (Distorsio) cancellinus (de Roissy). 



Martini, Conch. Cab., vol. ii. p. 85, pi. xli. figs. 405, 406. 

 Murex cancellinus, de Roissy, Buffon Hist, nat., Moll., vol. vi. p. 56, sp. 12. 

 „ inulus, Dillwyn, Cat., vol. ii. p. 704, sp. 45. 



„ Wood, Ind. Test., p. 129, pi. xxvi. fig. 46. 



