Polycera quadrilineata

(Muller, 1776)

Polycera quadrilineata
Photographed by: Markus Kaufmann

Kingdom:Animalia
Phylum:Mollusca
Class:Gastropoda
Subclass:Opisthobranchia
Order:Nudibranchia
Suborder:Doridina
Family:Polyceridae
Species:Polycera quadrilineata

Comment from Richard Willan on photo #16938
This is not Trapania maculata. Trapania maculata has no oral papillae around the front of the head, it has long extra-rhinophoral processes, and its extra-branchial processes are much longer than those on any of these animals.

Comment from Richard Willan on photo #6590
Mating individuals belonging to 2 different colour forms.

Comment from Richard Willan on photo #6593
This dorid nudibranch is characterised by possessing some gold markings (either lines, or dashes, or spots) on the mantle, and by 4 tentaculate processes off the front of the head. By contrast, the similar looking Polycera faeroensis is characterised by the complete absence of gold markings on the mantle, and by 8 tentaculate processes off the front of the head.

Comment from Alexander Martynov on photo #4032
This is a colour variation of common North Atlantic species Polycera quadrilineata (Müller, 1776). It is an interesting case when some colour morphs of one species (e.g. Polycera quadrilineata) may approach colour variants of another species of the same genus (e.g. Polycera atra), significantly differs in other features.

Locality:

 

Pictures of Polycera quadrilineata

Polycera quadrilineata from San Sebastian, Spain
Posted 7 years ago
Viewed 504 times
Polycera quadrilineata from England, UKIdentification reviewed by Bernard Picton
Location: England, UK
Posted 7 years ago
Viewed 697 times
Polycera quadrilineata from Scotland, UKIdentification reviewed by Bernard Picton
Location: Scotland, UK
Posted 7 years ago
Viewed 600 times
Polycera quadrilineata from Scotland, UKIdentification reviewed by Bernard Picton
Location: Scotland, UK
Posted 7 years ago
Viewed 606 times
Polycera quadrilineata from Scotland, UKIdentification reviewed by Bernard Picton
Location: Scotland, UK
Posted 7 years ago
Viewed 587 times
Polycera quadrilineata from Scotland, UKIdentification reviewed by Bernard Picton
Location: Scotland, UK
Posted 7 years ago
Viewed 1057 times
Polycera quadrilineata from England, UKIdentification reviewed by Bernard Picton
Location: England, UK
Posted 6 years ago
Viewed 792 times
Polycera quadrilineata from Sesimbra, Portugal
Posted 6 years ago
Viewed 364 times
Polycera quadrilineata from Sesimbra, Portugal
Posted 6 years ago
Viewed 478 times
Polycera quadrilineata from Marmara, Turkey
Location: Marmara, Turkey
Posted 6 years ago
Viewed 605 times
Polycera quadrilineata from Norway
Location: Norway
Posted 6 years ago
Viewed 583 times
Polycera quadrilineata from Galicia, Spain
Location: Galicia, Spain
Posted 6 years ago
Viewed 413 times
 
 
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