Palio nothus

Palio nothus (Johnston, 1838)

Palio nothus @ Loch Sween, Scotland 20160206 by Matt Barnes

Taxonomy
 

Superdomain

Biota  

 

Kingdom

Animalia  

 

Phylum

Mollusca  

 

Class

Gastropoda  

 

Subclass

Heterobranchia  

 

Infraclass

Euthyneura  

 

Subterclass

Ringipleura  

 

Superorder

Nudipleura  

 

Order

Nudibranchia  

 

Suborder

Doridina  

 

Infraorder

Doridoidei  

 

Superfamily

Polyceroidea  

 

Family

Polyceridae  

 

Subfamily

Polycerinae  

 

Genus

Palio  

 

Species

Palio nothus  (G. Johnston, 1838)

 
 Classification according to Bouchet et al. (2017)
Taxonomic source: World Register of Marine Species (AphiaID: 182808).
Synonyms

  • Polycera nothus (Johnston, 1838)
  • Polycera ocellata Alder & Hancock, 1842 
  • Triopa nothus Johnston, 1838 (original)

Description
Length up to 28 mm. The body is tall and with the animal in extension, it is somewhat narrower in the middle area between the rhinophores and the gill. Very dark brown body, sometimes in olive tones, except whitish spots throughout the body that correspond to conical tubercles of different sizes. The margins of the dorsum are very well marked around the whole animal and are also whitish and tuberculate. The rhinophores and gills are brown. On both sides of the gill there are white rounded papillae. Rhinophors with lighter coloured leaves. The foot is whitish.

Biology
It lives from the intertidal zone down to 20-30 m in rocky areas with the bryozoans it feeds on. The spawn is a spirally wound ribbon of a turn and a half with white eggs.

Etymology

  • Nothus. From Latin “nothus”, cross-bred, mixed, mongrel, false, spurious, illegitimate (known father).

Distribution
Basically an Atlantic species, Palio nothus has very few citations in the Mediterranean. The first cite for the Mediterranean corresponds to (Alen Petani, 2011) on the island of Vir, Croatia. Enric Madrenas’ finding in the Cap de Creus in 2015 we believe is the first report for the Western Mediterranean.

Known georeferenced records of the species: Palio nothus
Sources:
: OBIS
: GROC 2010-2011
: Enric Madrenas
: João Pedro Silva
: Bernard Picton
: GBIF.ORG
: OPK
: VIMAR
: Manuel Ballesteros.
: M@re Nostrum
: Altres fonts
: Marine Regions

Abundance

    Western Mediterranean:1 out of 5 stars
    Eastern Mediterranean:1 out of 5 stars
    Atlantic Ocean:3 out of 5 stars
Month

This chart displays the monthly observation probability for Palio nothus based on our own records.

More pictures

Bibliography

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    Ballesteros, M., E. Madrenas, and M. Pontes. 2019. OPK - Opistobranquis. (https://opistobranquis.info/).
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    Bibliography based on the works by Steve Long, 2006. Bibliography of Opisthobranchia 1554-2000 and Gary McDonald, 2009. Bibliographia Nudibranchia, with later updates from other resources.

Further reading

Cite this article as:

Ballesteros, Manuel, Enric Madrenas, Miquel Pontes (2012-2019) "Palio nothus" in OPK-Opistobranquis, Published: 20/10/2014, Accessed: 17/11/2019 at (https://opistobranquis.info/en/dIWPO)

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