Doto pygmaea Bergh, 1871

Salvador, Xavier, Fernández-Vilert, Robert & Moles, Juan, 2022, Sea slug night fever: 39 new records of elusive heterobranchs in the western Mediterranean (Mollusca: Gastropoda), Journal of Natural History 56 (5 - 8), pp. 265-310 : 280-282

publication ID

https://doi.org/ 10.1080/00222933.2022.2040630

DOI

https://doi.org/10.5281/zenodo.6771957

persistent identifier

https://treatment.plazi.org/id/024087AB-D843-D127-9A8C-229EFCB4FC53

treatment provided by

Plazi

scientific name

Doto pygmaea Bergh, 1871
status

 

Doto pygmaea Bergh, 1871 View in CoL

( Figure 3 View Figure 3 (h))

Material examined

Cala d’Aiguablava , Begur ( Spain), 41°56 ʹ 13.4”N, 3°13 ʹ 08.6”E, 22 June 2018, 0 m depth, 6 spcs, juveniles and adults, L = 2–5 mm; GoogleMaps Cala Maset caves, Sant Feliu de Guíxols ( Spain), 41°47 ʹ 10.5”N, 3°2 ʹ 44.6”E, 11 February 2020, 0.1 m depth, 7 spcs, adults and egg masses, L = 5–10 mm GoogleMaps .

External morphology

Body elongate, narrow, background colour white with black patches to completely black. Rhinophores elongate, transluscent white. Cerata displayed in a sinuous ‘S’ fashion with white tubercles only on the external part, the inner part being almost smooth.

Ecology

Specimens found on floating debris. The specimens from Aiguablava were living on plastic debris eating hydrozoan colonies, probably of the genus Obelia . The specimens of Cala Maset were living on floating wood. Slugs mated and laid egg masses while eating hydrozoans of the genus Tubularia . Egg masses are shaped like a winding cord forming an ‘S’; egg colour is yellowish.

Distribution

Italy ( Schmekel and Portmann 1982); Spain: Canary Islands ( Cervera et al. 2004), Spanish Levantine coast ( Cervera et al. 2004), Catalonia (this study).

Remarks

This species can be differentiated from other Doto species by having a black body with very elongated rhinophores, a smooth edge on the rhinophoral sheath, and ‘S’-shaped cerata, the inner part being almost smooth and the external with tubercles aligned longitudinally ( Ortea et al. 1997).

Family PHYLLIROEIDAE

Genus Phylliroe Péron and Lesueur, 1810

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Nudibranchia

Family

Dotidae

Genus

Doto