Synonyms Coryphella browni. Flabellina browni
Body (excluding appendages)
Usually up to 30mm, exceptionally 50mm, long. Semi-transparent white, revealing opaque white ovotestis and viscera . Anus below second group of cerata . Small white opaque marks form an interrupted medial line from the rear cerata to tip of the tail .
Not dense enough to conceal the body. Arranged in groups on each side of the body. Arise from a slightly raised ridge, visible in lateral view . Transparent white revealing bright red to dark brown internal digestive gland. Wide band of white surface pigment at distal end .
Wrinkled . Translucent white streaked with white surface pigment distally.
Head & oral tentacles
Translucent white oral tentacles with white surface pigment distally .
Sickle blade shaped propodial tentacles . Semi-transparent white sole.
Key identification features
- Excluding appendages, the only surface pigment on the body is the interrupted white medial line from the rear cerata to tip of the tail.
- Broad white ring on cerata distally, but no pigment on apex .
- Coryphella lineata (Lovén, 1846) - White lines run along dorsum and sides of body, and the full lengths of the rhinophores and oral tentacles.
- Coryphella gracilis (Alder & Hancock, 1844) - Distal white ring on cerata narrower than on C. browni. Maximum size 15 mm.
- Coryphella verrucosa (M. Sars, 1829) - Interrupted white dorsal line on body becomes continuous on tail. Distal white ring on cerata narrower than on C. browni.
- Flabellina pellucida (Alder & Hancock, 1843) - White pigment covers distal end, including apex, of cerata.
Ecology and behaviour
Distribution and status