REPORT ON THE GASTEROPODA. 675 



On the back of the British Museum tablet this species is said to = Siphonaria zelandica, Quoy 

 and Gaimard, and = Siplwnaria australis, Quoy and Gaimard. Deshayes (Lamarck, Anim. s. vert., 

 2d ed., vol. vii. p. 558, No. 7) says of the former of these two that it has some resemblance to 

 Siphonaria diernenensis, Quoy and Gaimard. 



2. Siphonaria (Liriola) tristensis, Leach. 



Siphonaria tristensis, Leach MS. in Sowerby's Genera, vol. i. pi. cxliii. fig. 3. 



,, lessoni, De Blainville, Malacologie, pi. xliv. fig. 2. 



„ ,, De Blainville, Diet. d. SeL Nat., vol. xlix. p. 296. 



,, ,, Lamarck, Anim. s. vert. (ed. Desh.), vol. vii. p. 502, sp. 19. 



,, lateralis, Couthouy, Proc. Boston Nat. Hist. Soc, 1846, vol. ii. p. 153. 



,, lessoni, d'Orbigny, Amerique merid., Moll., vol. v. p. 469, No. 422, pi. Ivi. figs. 7-11. 



„ tristensis and Sipho?iaria redimiculum, Reeve, Conch. Icon., vol. is. pi. v. figs. 23, 24. 



,, „ Dall, Amer. Journ. Conch., 1870, vol. vi. 



„ „ Dall, Kerguelen, Bull. U.S. Nat. Museum, 1876, No. 3, pt. 2, p. 45. 



October 15, 1873. Tristan da Cunha. Shore. 



October 16, 1873. Inaccessible Island, Tristan da Cunha. Shore. 



Habitat. — Tristan da Cunha (Eeeve) ; Falkland Islands, Chili, and Peru (d'Orbigny). 

 Orange Harbour, Patagonia, Kerguelen (Dall). 



Sowerby ascribes this species to Leach ; further than this I have failed to trace it. Gray (Brit. 

 Mus. Cat. of d'Orbigny, Shells of South America, p. 50, No. 422) says the species is the same as 

 Siphonaria Iceviuscula, Sow. (see Proc. Zool. Soc. Lond., 1835, p. 7). I suppose that the Siphonaria 

 Iceviuscula, de Blainv. MS. (see Reeve, Conch. Icon., vol. ix. pi. i. fig. 5), is a mistaken reference of 

 Reeve's for the same. 



