ON MOLLUSCA OF THE WEST COAST OF NOKTH AMERICA. 587 



Otifl, p. Boat. Proa S.N.H. 



122. 1860. Sept. Bticcinum Stimpsoni, Gld. ; like wndatum, tut quite distinct. 

 Avikamcheche Is., Behring Str., W. S. Arctic Ocean, Rod- 

 gers. [ Not B. Stimpsonianum, C. B. Ad.] 



Nephmea (Sipho) terebralis, Gld. ; like Icelandica. Arctic Oc 



Trophon inconmtiis, Gld. ; like crasstis. Hakodadi, W. S. 



JBela turgida, Gld. Kamtschatka, W. S. 

 1861. Mar. Marganta ianthina, Gld. ; like Sdiantarica. Arctic Ocean. 



Margarita albula, Gld. ; like an overgrown arctica. Arctic 

 Ocean., W. S. 



Margarita mustelina, Gld. Hakodadi ; low water, W. S. 



Gibbida redimita, Gld. ; like nivosa, A. Ad. Hakodadi, W. S. 



Lyonsia ventricosa, Gld. ; shorter than Norvegica. Hakodadi, 

 2-6 fm., sandy mud, W. S. \_" ? = navicida, jun." A. Ad.] 



Jjyonda {Fandorind) Jlabellata, Gld. ; like arenosa. Arctic 

 Ocean, W. S. 



Theora luhica, Gld. Hakodadi ; common in mud, 6 fin., "W. S. 



Panopcsa fragilis, Gld. Hakodadi, W. S. 



Panapisa ?generosa, var. sagrinata. Awatska Bay, Kamts- 

 chatka, W. S. ["Epidermis projects -^ in., as in Glycimeris. 

 Mud, 12 fin." Smiths. Gat. 1701.] 



Corbida vennsta, Gld. Hakodadi, 5-^ fin., shelly sand, W. S. 



Solen strictm, Gld. ; like cm-neus. Hakodadi, W. S. 



Solen gracilis, Gli. [nonPhil.] Hakodadi, sandy beaches, "W. S. 



Machcera sodalis, Gld. ; like costata. Hakodadi, W. S. 



SolemyapiisiUa, Gld.; like velum. Hakodadi, 5 I'm., mud, W.S. 



TeUinaltibnca,Q\d^.; like felix a.ni fabagella. Hakodadi, 6 fin., 

 sandy mud, W. S. 



168. „ „ Saxidomvs aratus, Gld. ; like V. maxima, Phil.^San P'rancisco. 



[Described as 4'5 in. long, yet] smaller than XuttuHii. [" Open 

 bays at Sir F. Drake's ; 1. w., sand." Smiths. Cat. 1842.] 



169. ,, ,, Venus (Mercenarid) Stimpsoni, Gld. ; like the Atlantic forms. 



Hakodadi, 6 fin., W. S. 



170. „ „ Mysia {Fekinia) tista, Gld. ; like an Astarte. Hakodadi, 8 fin., 



sandy mud, W. S. 

 173. „ Apr. Montacata divaricata, Gld. Hakodadi, on Spatangus-spn&s^ . S. 

 175. „ ,j Nttcula (Acila) insignis, Gld. ; like mirabilis : [identical, teste 



A. Ad.] E. Japan, lat. 37°, and Hakodadi, W. S. [" 20fin. 



black coarse sand." — Smiths. Cat. 1628.] 

 177. „ „ Mytilus coruscus, Gld.* Hakodadi ; common on rocks between 



tide-marks, W. S. [?=ilf. sphndens., no. 1956.] 

 177. „ „ Pecten Icetits, Gld. ; resembles generally P. senatorius, is still more 



like P. [Amusiiirri] caurinus. Plakodadi, shelly mud, 10 fin., 



W. S. [Non P. leetus, Gld., in U. S. Expl. Exped. Shells, 



Otia, p. 95, = P. Difffenbachii, Gray, teste Cuming.] 

 95. The United States Expedition to Japan, under Commodore IT. C. Perry, 

 1852-4, was not undertaken for scientific purposes ; and no special provision 

 was made either for collecting or describing objects of natural history. A 

 large number of shells, however, were obtained, and identified by Dr. Jay of 

 New York. In Vol. II. of the ' Narrative of the Expedition, (fee' (Washing- 

 ton, 1856, pp. 289-297) is given a list of Japanese shells, with descriptions and 

 figures of the (supposed) new species. The following are related' to the mol- 

 luscs of the West Coast t- Specimens of the most im^jortant may be seen 

 in the Cumingian Collection. 



* The M. mutabilis, described on the same page from Kagosima, is a SepUfer; it is pre- 

 srnnecl that the learned author did not open a specimen. 



t The student should also consult, for related forms, the ' MoUusca Japonica ' by Dr. 

 W. Dunker, Stuttgart, 1861 ; — like all the other works of the same author, most valuable 

 for the patient care, accurate iudement, and enlarged experience displayed; but relating 

 chiefly to the sublropical poi Uou of the launa. 



73 



