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Polycera quadrilineata is a smooth-bodied, variably coloured nudibranch. The ground colour is white or grey and there are usually black, yellow or orange stripes longitudinally along the notum, though these can be absent. The head has four or occasionally six yellow projections. The gills and rhinophores are translucent white, tipped with ...
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Nudibranchs (/ ˈ nj uː d ɪ b r æ ŋ k / [2]) belong to the order Nudibranchia, a group of soft-bodied marine gastropod molluscs that shed their shells after their larval stage. [3] They are noted for their often extraordinary colours and striking forms, and they have been given colourful nicknames to match, such as "clown", "marigold ...
The black nudibranch is a large (up to 80 mm) deep-bodied nudibranch. It is easily recognised because of its blue-black colour and bright turquoise marginal line. Some specimens are brownish with a purple marginal line. Its gills and rhinophores are black. [4]
There are multiple colorations of Jorunna parva, including yellow, white, and green, though the latter is rarely photographed. [5] All of these variants have black papillae interspersed among papillae of their main color. There is controversy over whether or not the different colorations are divergent species. [5]
Chromodoris lineolata is a chromodorid nudibranch with a pattern of multiple longitudinal stripes of black or dark brown and white on the mantle. The mantle edge is orange or yellow. The gills are bushy and brown with fine white spots. The rhinophores are orange-brown and are also covered with fine white spots.
A black dash between the rhinophores distinguishes this species from similar species like Chromodoris elisabethina and Chromodoris westraliensis. The mantle edge and the foot are bordered with white and orange to yellow lines in which the width and the color intensity can vary greatly from a specimen to another.
Aegires albopunctatus, commonly known as the salt-and-pepper doris, is a species of sea slug or nudibranch, a marine gastropod mollusk in the family Aegiridae. [2]Other common names include the salt-and-pepper nudibranch, small white nudibranch, white knight nudibranch, and white-spotted doris.