Atalodoris pusilla

Atalodoris pusilla
The nudibranch Atalodoris pusilla, 5 mm length, Gulen Dive Resort, Norway.
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Nudibranchia
Family: Onchidorididae
Genus: Atalodoris
Species:
A. pusilla
Binomial name
Atalodoris pusilla
(Alder & Hancock, 1845)
Synonyms[1]
  • Atalodoris albonigra (Pruvot-Fol, 1951) junior subjective synonym
  • Doris pusilla Alder & Hancock, 1845
  • Knoutsodonta albonigra (Pruvot-Fol, 1951) superseded combination
  • Knoutsodonta pusilla (Alder & Hancock, 1845)
  • Lamellidoris albonigra Pruvot-Fol, 1951 (original combination)
  • Onchidoris albonigra (Pruvot-Fol, 1951)
  • Onchidoris pusilla (Alder & Hancock, 1845)

Atalodoris pusilla is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Onchidorididae.[1]

Description

(Original description) The body is ovate and notably depressed. The cloak is a yellowish-white, thickly freckled with dark brown spots, and is covered with numerous conical papillae that are obtusely pointed at the top.

The tentacles are long, slender, pure white, and finely laminated. The branchial plumes, nine in number, are a beautiful white and are simply pinnate. They are arranged in an incomplete, somewhat distant circle around the vent and are retractile within separate cavities.

The head has a broad veil, and the foot is rather broad. [3]

Distribution

This species was described from Tor Bay, Devon, England. It is currently known from the European coasts of the North Atlantic Ocean from Norway, south to the Atlantic coast of Spain.[4][5]

This species was also described from Banyuls-sur-Mer on the Mediterranean Sea coast of France. It has been reported from the Bay of Naples, Italy and the Catalan coast of Spain at Cadaqués and some other location in the Costa Brava.[6]

Diet

Atalodoris pusilla feeds on the bryozoans Escharella immersa, Microporella ciliata, Escharoides coccineus and Porella concinna.[5]

See also

References

  1. ^ a b MolluscaBase eds. (2025). MolluscaBase. Atalodoris pusilla (Alder & Hancock, 1845). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1565333 on 2025-09-10
  2. ^ 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 4 Fam. 1 Plate 13 [1846].
  3. ^ Alder J. & Hancock A. (1845). Notice of a new genus and several new species of nudibranchiate Mollusca. Annals and Magazine of Natural History 16: 311-316, page 313. This article incorporates text from this source, which is in the public domain.
  4. ^ Picton, B.E. & Morrow, C.C. (2015). Onchidoris pusilla (Alder & Hancock, 1845). [In] Encyclopedia of Marine Life of Britain and Ireland. Accessed on 2016-01-18.
  5. ^ a b Thompson, T. E. and G. H. Brown (1984). Biology of Opisthobranch Molluscs Vol 2. 229 pp. 41 Pls. Ray Society, page 60.
  6. ^ Ballesteros, M., E. Madrenas, M. Pontes et al. (2012-2016) Onchidoris albonigra in OPK-Opistobranquis, Published: 29/08/2012, Accessed: 20/01/2016.
  • Pruvot-Fol A. (1951). Etudes des nudibranches de la Méditerranée 2. Archives de Zoologie Expérimentale et Générale 88: 1-80.