1886.] PKOCEEDINGS OF UNITED STATES NATIOxXAL MUSEUM. 2l3 



TrUonium (Latjcna) oregonense H. & A. Ad., Gcii. Eec. Moll., I, p. 104, 1858. 

 Priene o?e<70«(;/is(*- A. Ad., Journ. Liu. Soc, VII, 10(>, 1864. Ci)r.,Eep. Br. As., 



1863, pp. 597, 661, &c. 

 Tritonium cancellaium Schienck, Amurl. Moll., p, 481, 1867. Not of Lamarck 



(Hakodadi Bay). 

 Tritonium oregonense Li.scbkc, Jap. Meer. Couch., II, p. KU!, 1871 ; III, p. :51, 1874. 



Dunker, lud. Moll. Jap., p. 30, 1882. 

 Priene cancellaia Tryou (pars), Man., Ill, pp. 33, 34, pi. XVI, figs. 165-167, 1880. 

 TrUonium canceUatum Anrivillius, Vega Exp., Vet. Arb., IV, j). 346, pi. XIII, 



fig. 8 (dentition), 1885. 



Monterey, California, northward to the Aleutians, Dall; Bering Is- 

 land, 5-10 fuis. hard bottom, Vega Expedition, one specimen; Kam- 

 chatka, Dall; Kurile Islands; Okhotsk Sea and Japan, Middeudorff, 

 Schrenck, Dunker and Stimpson. 



With but one specimen of this shell it was not remarkable that Mr. 

 Anrivillius should fall into line with several older naturalists who have 

 asserted the identity of the Alaskan shell with that from Patagonia, 

 although Reeve, Gould, Arthur Adams, Carpenter, Lischke, Dunker, 

 and its describer have pointed out the distinctions between them in 

 various publications. But from the first there has been an amount of 

 blundering in regard to the habitat of the few shells related to this 

 species which seems surprising. * 



Chemnitz correctly figured and described the Patagouian shell from 

 his own cabinet and assigned it a proper habitat. Were he consistently 

 as binomial throughout as he is in this instance his specific name should 

 stand. Lamarck followed, and the first to blunder was Reeve, who fig- 

 ured thesouthern shell and assigned it an Alaskan habitat whilefiguring 

 the real but immature Alaskan shell on the same plate and merely as- 

 signing it to " North America." This led others into error. Carpenter, 

 in his first (but not his second) report to the British Association, assigns 

 both canceUatum and scaber (King) to the Arctic, an error which lie re- 

 alized later. Tryon, in his latest manual, has followed this account, 

 and, although referring to Gould's figures of the Patagouian living ani- 

 mal taken on the spot by Couthouy, queries its southern distribution. 

 It would seem, since he gives no figure of the adult oregunoise, that 

 his material was insufiicieut to come to a decision upon. 



One reason why so much confusion has prevailed is perhaps that the 

 oregonense, while a very common shell from Monterey, Cal., to the Aleuti- 



* To make the matter clearer the synonymy of the Patagonian species is appended: 



Tritonium canceUatum Lamarck. 



Murcx magellanicus Chemnitz, Conchyl. Cab., X, p. 275, tab. 164, fig. 1570, 



1788 (Magellan Strait). 

 Triton canceUatum Lamarck, An. S. Vert., ed. 1, VII, p. 187, 1822 ; ed. 2, 



Desbayes, IX, p. 638, 1843 (S. America). 

 Fusus canceUatus Reeve, Conch. Icon., IV, Mou. Fusus, fig. 62 (only), 1848 



(Unalashka, Kamchatka) ! 

 Priene cuncellalus A. Adams, Jonrn. Lin. Soc, VII, p. 106, 1864 (Patagonia). 

 Priene cancellaia Tryon (i)ars), Man., III.i). 34, pi. 16, fig. 164 (only). 



