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Calmella cavolini - detail of head
Calmella cavolini
Calmella cavolini oh Eudendrium hydroid
Calmella cavolini
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Calmella cavolini (Vérany, 1846)
NUDIBRANCHIA
Small aeolid nudibranch found in precoralligenous biocoenosis. The base colour is whitish to very pale violet. This species feeds on hydroids belonging to Eudendrium sp. and may be found in summer close to Flabellina affinis.

Propodial tentacles: Present, pale violet coloured to whitish, recurved.
Oral tentacles: Present, pale violet tinge with white tips, rugose.
Rhinophores: Pale violet tinge with white tips, rugose, very long.
Cerata: Orange to orange red in colour with white tips, joined at the base.
Foot: Colourless without any appendages.

Size range: 5-14mm. Common.

Specific characteristics: This species is easy to distinguish from related species by the presence of two dark spots (jaws) just before the rhinophores.

Identification by Dr. A. Perrone
14mm Mercanti reef 7m depth 18/7/92
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Close-up of head showing internal jaws
9mm Ghar Lapsi 5m depth 26/5/93
14mm Mercanti reef 7m depth 18/7/92
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Marine species
European marine life
Flabellinidae