MOLLUSCA : NUDIBRANCHIA : TergipedidaeSNAILS, SLUGS, ETC.

Tenellia viridis (Forbes, 1840)


Tenellia viridis

Description: This Tenellia is distinguished by its green ceratal contents and splashes of yellow-white pigment. The body is translucent white, often with a faint yellow hue. The cnidosacs at the tips of the cerata are large and conspicuous, off-white in colour. Streaks and spots of white pigment extend along the dorsal surfaces of the cerata. The brown jaws are clearly visible through the head in front of the rhinophores. Grows to about 15 mm in length.

Habitat: Feeds on the hydroids Sertularella spp. especially Sertularella rugosa. Found in shallow exposed and semi-sheltered rocky areas.

Distribution: More common in the north of the British Isles, though records exist from the Atlantic coast of France. Specimens from Iceland may grow larger and develop more dense white pigmentation dorsally.

Similar Species: Tenellia caerulea is similar in anatomy, both internally and externally, but easily distinguished by coloration.

Key Identification Features:

Distribution Map from NBN: Interactive map : National Biodiversity Network mapping facility, data for UK.

WoRMS: Species record : World Register of Marine Species.



 Picton, B.E. & Morrow, C.C. (2016). Tenellia viridis (Forbes, 1840). [In] Encyclopedia of Marine Life of Britain and Ireland.
http://www.habitas.org.uk/marinelife/species.asp?item=W14740 Accessed on 2017-06-27

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