Tenellia adspersa (Nordmann, 1845)

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 : 287

publication ID

https://doi.org/ 10.1080/00222933.2022.2040630

DOI

https://doi.org/10.5281/zenodo.6771983

persistent identifier

https://treatment.plazi.org/id/024087AB-D85A-D120-9ADB-2503FCE4F9A4

treatment provided by

Plazi

scientific name

Tenellia adspersa (Nordmann, 1845)
status

 

Tenellia adspersa (Nordmann, 1845) View in CoL View at ENA

( Figure 4 View Figure 4 (g))

Material examined

Port de Blanes ( Spain), 41°40 ʹ 25.5”N, 2°47 ʹ 48.6”E, 21 January 2019, 0.1 m depth, 1 spc GoogleMaps ., adults, L = 7 mm.

External morphology

Body elongate, narrow, background colour black. Rhinophores smooth; oral veil very well developed and without oral tentacles. Cerata lateral, elongated; tip swollen.

Ecology

A single specimen was found in a mass of hydrozoans in a floating dock with other sea slugs.

Distribution

North-east Atlantic ( OBIS 2021); Pacific North American coast (iNaturalist.org 2021; OBIS 2021); Portugal ( Encarnação et al. 2020); Spain: Canary Islands, Atlantic Andalusian coast, Galicia, Levantine coast ( Cervera et al. 2004), Catalonia (this study).

Remarks

This species has a widespread and cosmopolitan distribution ( Roginskaya 1970), being found in oceanic and brackish waters ( Thompson and Brown 1984). Tenellia adspersa can be differentiated from conspecifics by having an oral veil connecting the oral tentacles and the cerata are clustered ( Evertsen et al. 2004). Typically, the colour of the body and cerata varies from black to creamy with their diet (authors pers. obs.). Encarnação et al. (2020) found this species associated with the invasive hydrozoan Cordylophora caspia (Pallas, 1771) on artificial structures.

Genus Trinchesia Er. Ihering, 1879

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Nudibranchia

Family

Trinchesiidae

Genus

Tenellia