Polycera quadrilineata (O. F. Müller 1776)

Description: English: The nudibranch Polycera quadrilineata, Gulen Dive Resort, Norway. Date: 13 March 2014. Source: Own work. Author: Bernard Picton. Camera location 60° 57′ 27.72″ N, 5° 07′ 42.96″ E : View all coordinates using: OpenStreetMap - Google Earth: 60.957700; 5.128600.

Description: English: Alder J. & Hancock A. (1845-1855). A monograph of the British nudibranchiate Mollusca: with figures of all the species. The Ray Society, London. Published in 8 parts:Part 5 Fam.1 Plate 22 [1851]. Polycera quadrilineata (O. F. Müller, 1776). Date: 1851. Source: https://www.biodiversitylibrary.org/item/131598#page/200/mode/1up. Author: Albany Hancock.

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