APHOTOMARINE

An educational resource dedicated mainly to the photography
and diversity of marine life that can be found in coastal waters
and intertidal areas of Great Britain and Ireland by David Fenwick.

A-P-H-O-T-O Wildlife Stock Image Library
Favorinus blianus Lemche & Thompson, 1974 - A facelinid sea slug (Sea slug images)
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Facelinid sea slug
Favorinus blianus
- dorsal view pair 1

Facelinid sea slug
Favorinus blianus
- dorsal view top specimen 1

Facelinid sea slug
Favorinus blianus
- dorsal view bottom specimen 1

Facelinid sea slug
Favorinus blianus
- rhinophores 1

Facelinid sea slug
Favorinus blianus
- rhinophores 2

Facelinid sea slug
Favorinus blianus
- rhinophores 3

Facelinid sea slug
Favorinus blianus
- rhinophores 4

The specimens above were found on sampling marine fouling from pontoons, using a fine mesh aquarium net, at Newlyn Marina, Newlyn, Cornwall, 22.10.18.

Facelinid sea slug
Favorinus blianus
- dorsal view 1

Facelinid sea slug
Favorinus blianus
- dorsal view 2

Facelinid sea slug
Favorinus blianus
- dorsal view 3

Facelinid sea slug
Favorinus blianus
- anterior 1

Facelinid sea slug
Favorinus blianus
- anterior 2

Facelinid sea slug
Favorinus blianus
- radula teeth 1

Facelinid sea slug
Favorinus blianus
- radula teeth 2

Facelinid sea slug
Favorinus blianus
- radula teeth 3

Facelinid sea slug
Favorinus blianus
- radula teeth 4

Facelinid sea slug
Favorinus blianus
- close-up of jaw 1

The specimen above isn't the best specimen of this species in the world as it doesn't have the three large rimmed rhinophores that is associated with typical individuals. The specimen here could very easily be confused with the common species Facelina auriculata. As there was an issue with the identification and the species unlikely be determined with any accuracy through photography, the animal was dissected as it was the only way without sequencing to determine what the species was.

The radula teeth and jaws were examined under a compound microscope and were found to be more typical of the genus Favorinus, as the radula teeth were found to be longer than Facelina. The 3mm specimen was found at Newlyn Marina, Newlyn, Cornwall, 04.10.18.

Facelinid sea slug
Favorinus blianus
- dorsal view 4

Facelinid sea slug
Favorinus blianus
- front view 1

Facelinid sea slug
Favorinus blianus
- dorsal view 5

Facelinid sea slug
Favorinus blianus
- with 0.1mm division rule 1

The specimen above was found in a scrape sample at Newlyn Marina, Newlyn, Cornwall, 05.10.18.

APHOTOMARINE supports open source data recording and sharing for the benefit of wildlife, recorders, research, science and education. The project recommends the following websites and works with the following bodies and organisations.

Favorinus blianus facelinidae facelinid sea slug Sea Slug Images
The main objective of this website is in furthering environmental awareness and education through the medium of photography. To increase awareness and access to the wildlife of the region and help
people find and identify it. Sometimes the difference between species is obvious but many species can only be determined by observing microscopic characteristics that are specific to any one species.