Tenellia adspersa
Description
Tenellia adspersa (Nordmann, 1845)
(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., 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
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Event date
- 2019-01-21
- Family
- Trinchesiidae
- Genus
- Tenellia
- Kingdom
- Animalia
- Order
- Nudibranchia
- Phylum
- Mollusca
- Scientific name authorship
- Nordmann
- Species
- adspersa
- Taxon rank
- species
- Verbatim event date
- 2019-01-21
- Taxonomic concept label
- Tenellia adspersa (Nordmann, 1845) sec. Salvador, Fernández-Vilert & Moles, 2022
References
- OBIS. 2021. Ocean Biogeographic Information System. Intergovernmental Oceanographic Commission of UNESCO. Accessed 2021 May 22. www. iobis. org
- Encarnacao J, Seyer T, Teodosio MA, Leitao F. 2020. First Record of the Nudibranch Tenellia adspersa (Nordmann, 1845) in Portugal, Associated with the Invasive Hydrozoan Cordylophora caspia (Pallas, 1771). Diversity. 12: 214. doi: 10.3390 / d 12060214.
- Cervera JL, Calado G, Gavaia C, Malaquias MAE, Templado J, Ballesteros M, Megina C, Garcia-Gomez JC. 2004. An annotated and updated checklist of the opisthobranchs (Mollusca: Gastropoda) from Spain and Portugal (including Islands and archipelagos). Boletin-Instituto Espanol de Oceanografia. 20: 5 - 111.
- Roginskaya IS. 1970. Tenellia adspersa, a nudibranch new to the Azov Sea, with notes on its taxonomy and distribution. Malacol Rev. 3: 167 - 174.
- Thompson TE, Brown GH. 1984. Biology of Opisthobranch molluscs. London (UK): Ray Society. 280.
- Evertsen J, Bakken T, Green S. 2004. Rediscovery of Tenellia adspersa (Nudibranchia) from the Finnish archipelago. Sarsia. 89: 362 - 365. doi: 10.1080 / 00364820410002569.