original description
(of Issa lacera var. pacifica Bergh, 1894) Bergh, L. S. R. (1894). Reports on the dredging operations off the west coast of Central America to the Galapagos, to the west coast of Mexico, and in the Gulf of California, in charge of Alexander Agassiz, carried on by the U.S. Fish Commission steamer “Albatross,” during 1891, Lieut. Commander Z. L. Tanner, U.S.N. commanding. <em>Bulletin of the Museum of Comparative Zoology.</em> 25: 125-233 [October 1894]., available online at https://www.biodiversitylibrary.org/page/4179748
page(s): 189, pl. 9 fig. 3-11 [details]
basis of record
Turgeon, D., Quinn, J. F., Bogan, A. E., Coan, E. V., Hochberg, F. G., Lyons, W. G., Mikkelsen, P. M., Neves, R. J., Roper, C. F. E., Rosenberg, G., Roth, B., Scheltema, A., Thompson, F. G., Vecchione, M., Williams, J. D. (1998). Common and scientific names of aquatic invertebrates from the United States and Canada: mollusks. 2nd ed. <i>American Fisheries Society Special Publication</i>, 26. American Fisheries Society: Bethesda, MD (USA). ISBN 1-888569-01-8. IX, 526 + cd-rom pp. (look up in IMIS)
page(s): 126 [details]
additional source
Bleakney, J. S. (1996). Sea slugs of Atlantic Canada and the Gulf of Maine. <em>The Nova Scotia Museum Field Guide Series. Nimbus Publishing. Halifax.</em> 1-216. [details]
additional source
Rosenberg, G. 2004. Malacolog Version 3.3.2: Western Atlantic gastropod database. The Academy of Natural Sciences, Philadelphia, PA., available online at http://www.malacolog.org [details]
From editor or global species database
Taxonomy Martynov & Baranets, 2002 consider there are 3 species, Colga villosa (NW Atlantic - Barents Sea), C. pacifica (North Pacific: Alaska - Kurile Ids), and C. minichevi (North Pacific: Kurile Ids - North Japan Sea). Following this the Atlantic records are flagged as inaccurate. [details]From other sources
Distribution Range: 70.67°N to 42.85°N; 68.9°W to 52°W. Distribution: Greenland; Greenland: West Greenland; USA: Maine, Massachusetts [details]
Habitat infralittoral of the Gulf and estuary [details]