Dicata odhneri Schmekel, 1967
Dicata odhneri Schmekel, 1967
|Classification according to Bouchet et al. (2017)|
Taxonomic source: World Register of Marine Species (AphiaID: 139937).
- Favorinus albus Odhner, 1914
This is a small aeolidacean as the specimens rarely exceed 10 mm in length. It’s an easy species to identify because of its colour homogeneity: the whole body is white except the final third of the rhinophores and oral tentacles, that are bright yellow. In some specimens the opaque white pigment of the body is dispersed and then the body is slightly translucent while, in Atlantic specimens, the absence of white pigment in the cerata makes them look somewhat dark. Rhinophores are smooth throughout its length and oral tentacles are somewhat shorter than the rhinophores. The eyes are barely visible right behind the base of each rhinophore. The cerata are gathered in 7-8 groups on each side of the body, and consist of only one row of cerata; they are elongated, fusiform and somewhat narrower at the base. The tip of the cerata is sharp and usually slightly depigmented. The foot is white and in his front end it has two triangular shaped propodial palps.
The biology of this newly described species is still very little known. Its small size and cryptic coloration on many substrates make it go unnoticed to the eye of the diver. It has been cited laying among algae, sponges and colonies of gymnoblastic hidrozoans of the genus Podocoryne, between 6 and 45 m deep. The spawn is a spiral ribbon with white eggs about 80 microns in diameter (Schmekel, 1967).
- Dicata: from Latin “dicata“, present passive participle of “dicar“, means “dedicated to …”
- Odhneri. Dedicated to Prof.Dr.Nils Hjalmar Odhner (1884-1973), specialist on molluscs at the Swedish Museum of Natural History, Stockholm, succeded Bock (q.v.) as professor of invertebrate zoology and director of this museum department in 1946, until his retirement in 1949, when he was succeded by Karl Lang (q.v.). However, he continued to work and published (from 1907 on) until 1968. His interest in molluscs was broad, albeit his special area concerned opisthobranchs.
This species is distributed throughout the western Mediterranean and European Atlantic coasts up to the British Isles, including the Azores and the Canary islands. In the Iberian Peninsula (Cervera et al. 2004) it has been reported in the coast of Portugal, in the Andalusian Mediterranean and along the Catalan coast (Es Caials, Cadaqués, Roses) (Ballesteros, 2007), although findings are rare.
| : OBIS|
: GROC 2010-2011
: Enric Madrenas
: João Pedro Silva
: Bernard Picton
| : OPK|
: Manuel Ballesteros.
: M@re Nostrum
: Altres fonts
: Marine Regions
References for the species: Dicata odhneri
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[includeme]shortcode. This message is shown only to administrators.Sources: Cervera et al., 2004, Ballesteros, 2007 & 2016, McDonald, 2006 and other sources.
Trinchesia miniostriata, with similar colour and size, rhinophores and oral tentacles lack the yellow tips, has red lined on the rear side of rhinophores, missing on D.odhneri.
- Biodiversity Heritage Library
- CIB - Club Immersio Biologia
- El Litoral de Granada
- Encyclopedia of Marine Life of Britain and Ireland
- Flickr pictures
- Interim Register of Marine and Nonmarine Genera
- MedSlugs (Atl.E)
- MedSlugs (Med)
- NCBI GenBank
- OBIS - Search by Taxon
- World Register of Marine Species
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