Dendronotoidea

Els dendronotacis tenen el cos llarg i estret i posseeixen una filera de processos ramificats o tuberculats a cada costat del cos, en posició dorsolateral. Els rinòfors poden ser llisos o tenir laminetes però sempre estan envoltats en la seva base per una beina elevada dins de la qual poden retreure’s. El cap pot diferenciar expansions laterals arrodonides o bé un vel frontal amb diverses digitacions. L’anus i els orificis genitals es troben a la dreta del cos.

Doto rosea 3mm per Enric Madrenas

S’alimenten principalment de cnidaris, com colònies de hidrozous, coralls tous i gorgònies. Les espècies de la família Tethydidae en canvi solen menjar petits crustacis com amfípodes, copèpodes, isòpodes i ostràcodes; dins d’aquesta família, l’espècie de gran talla Tethys fimbria té un espectre alimentari més ampli ja que s’ha citat que s’alimenta a més de petits equinoderms, gasteròpodes, poliquets i petits peixos. Són la majoria bentònics però algunes espècies poden nedar mitjançant moviments ondulants del cos; les espècies de la família Phylliroidae són pelàgiques  i s’alimenten de meduses o sifonòfors.

Classificació

Wägele & Willan (2000) van concloure que els Dendronotida (inclosos Tritonioidea i Dendronotoidea) són monofilètics, però Martin et al. (2009, 2010) i Goodheart (2017) van obtenir resultats diferents. Ja Healy & Willan (1991) van identificar àmplies variacions en la morfologia dels espermatozoides que van qüestionar la seva monofilia.

Tot i que la família Dotidae ha estat exclosa sistemàticament dels Dendronotida en les anàlisis morfocladístiques (Wägele i Willan, 2000), Doto i Hancockia s’agrupen amb Dendronotus i Scyllaea en la filogènia molecular de Mahguib & Valdés (2015), el que dóna suport a la restitució de Doto com a grup germà de Melibe i Dendronotus (Goodheart, 2017).

La relació de Hancockiidae amb altres Cladobranchia no estava clara en els enfocaments morfocladístics (Martin et al., 2009) i multilocus (Pola i Gosliner, 2010). Han estat inclosos en Dendronotoidea per Bouchet et al. (2017) basant-se en l’arbre filogenètic de Mahguib & Valdés (2015). De manera similar, la relació de Tethys amb els altres Cladobranchia tampoc era clara en la filogènia multilocus de Pola i Gosliner (2010), però va resultar ser un grup germà de Dendronotus en l’estudi filogenètic de Goodheart et al. (2015) i Goodheart (2017).

La classificació actual dels Dendronotacis segons el proposat per Bouchet et al. (2017) i acceptat en WoRMS és:

• Superfamília Dendronotoidea Allman, 1845
  • Família Bornellidae Bergh, 1874
    • Gènere Bornella Gray, 1850
    • Gènere Bornellopsis O’Donoghue, 1929
  • Família Dendronotidae Allman, 1845
    • Gènere Dendronotus Alder & Hancock, 1845
  • Família Dotidae Gray, 1853
    • Gènere Caecinella Bergh, 1870
    • Gènere Doto Oken, 1815
    • Gènere Kabeiro Shipman & Gosliner, 2015
    • Gènere Miesea Er. Marcus, 1961
  • Família Hancockiidae MacFarland, 1923
    • Gènere Hancockia Gosse, 1877
  • Família Lomanotidae Bergh, 1890
    • Gènere Lomanotus Vérany, 1844
  • Família Scyllaeidae Alder & Hancock, 1855
    • Gènere Crosslandia Eliot, 1902
    • Gènere Notobryon Odhner, 1936
    • Gènere Scyllaea Linnaeus, 1758
  • Família Tethydidae Rafinesque, 1815
    • Gènere Melibe Rang, 1829
    • Gènere Tethys Linnaeus, 1767

Espècies de Dendronotacis citades a la Mediterrània o a la Península Ibèrica:

Dendronotus frondosus	Doto alidrisi
Doto caballa	Doto cervicenigra
Doto coronata	Doto cuspidata
Doto dunnei	Doto eireana
Doto floridicola	Doto fragaria
Doto fragilis	Doto furva
Doto koenneckeri	Doto lemchei
Doto maculata	Doto millbayana
Doto paulinae	Doto pinnatifida
Doto pita	Doto pygmaea
Doto rosea	Doto tuberculata
Doto verdicioi	Hancockia uncinata
Lomanotus barlettai	Lomanotus genei
Lomanotus marmoratus	Melibe viridis
Scyllaea pelagica	Tethys fimbria

Bibliografia

1246567 Dendronotoidea items 1 entomological-society-of-america 0 author asc 1 452 https://opistobranquis.info/wp-content/plugins/zotpress/
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Bouchet, P., J. P. Rocroi, B. Hausdorf, A. Kaim, Y. Kano, A. Nützel, P. Parkhaev, M. Schrödl, and E. Strong. 2017. Revised classification, nomenclator and typification of gastropod and monoplacophoran families. Malacologia. 61: 1–526.
Bibliografia basada en els treballs de Steve Long, 2006. Bibliography of Opisthobranchia 1554-2000 i Gary McDonald, 2009. Bibliographia Nudibranchia, amb actualitzacions posteriors procedents d´altres fonts.