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This egg deposit from the nudibranch Aeolidia papillosa was attached to the side of a boulder. The boulder was turned for the photograph. The egg deposit was photographed dry whereas in the previous image another Aeolidia papillosa egg deposit was photographed underwater. There were two adult Aeolidia papillosa in the vicinity of this egg deposit, which was located close to the Guernsey end of the Lihou Island causeway. File No. 090509 3882 ©RLLord fishinfo@guernsey.net
These two adult Aeolidia papillosa nudibranchs were on the upper shore in a shallow pool near the Guernsey origin of the Lihou Island causeway on the afternoon of 9 May 2009. Near-by were two deposits of spawn. The spawn is photographed in the adjacent images. These nudibranchs feed on sea anemones - particularly beadlet and snakelocks anemones. There cerata on the dorsal surface retain the nematocysts or stinging cells of the anemones they consume. File No. 090509 3851 ©RLLord fishinfo@guernsey.net
These two nudibranchs, Facelina auriculata, were collected from the side of a fish quay pontoon in St. Peter Port harbour, Guernsey. They were placed in an aquarium for photography. As they met they embraced each other and stayed together for about a minute or so before moving off in separate directions. They were returned to St. Peter Port harbour after photography. Facelina auriculata union fish quay 090307 3-887 ©RLLord fishinfo@guernsey.net
This beautiful nudibranch, Facelina annulicornis, was seen on the side of the pontoons attached to the fish quay in St. Peter Port harbour, Guernsey on the 8th June 2007 along with two other sea slug species. The other species can be seen in the distance - Facelina bostoniensis and Facelina auriculata. Dr. Bernard Picton in his excellent book "A Field Guide to the Nudibranchs of the British Isles" writes that Facelina annulicornis has been known to attack and consume some other sea slug species. File No. 080607 12-917 ©RLLord fishinfo@guernsey.net
This nudibranch, Facelina annulicornis, was one of three species of sea slug I found feeding and depositing eggs on the side of a pontoon attached to the fish quay in St. Peter Port harbour, Guernsey on the 8 June 2007. File No. 080607 19-917 ©RLLord fishinfo@guernsey.net
I visited the fish quay pontoons in St. Peter Port harbour on the 18th September and found three large Janolus cristatus nudibranchs but I didn't photograph them. On the 21 September I revisited the pontoons and saw this tiny Janolus cristatus individual that probably wasn't much more than 10 mm long. Janolus cristatus feed on bryozoan colonies and particularly the erect Bugula colonies. They also lay their strings of pearl-like egg cases on their food. File No. 210907 1102 ©RLLord fishinfo@guernsey.net
I examined the north side of a string of pontoons inside the arm of the fish quay in St. Peter Port harbour, Guernsey and found three species of nudibranch or sea slug feeding and laying their spawn on their food growing on the side of the pontoon. This is an image of Facelina annulicornis found on the side of the pontoon on the 8 June 2007. File No. 080607 506 ©RLLord fishinfo@guernsey.net
This nudibranch, Facelina bostoniensis, was one of three species of sea slug seen on the fish quay pontoons in St. Peter Port harbour, Guernsey on the 8 June 2007. This individual is gliding over an erect bryozoan colony. File No. 080607 36-916 ©RLLord fishinfo@guernsey.net
A poster up to A3 in size (40 x 28 cm) showing fifteen Guernsey nudibranchs and the spawn of the common sea slug, Berthella plumula. All these species are carnivorous. Depending on species they eat sponges, bryozoans, hydroids or anemones. The image of Aeolidia papillosa shows it attacking and devouring a snakelocks anemone, Anemonia viridis. Aeolidiella alderi is also attacking an anemone. Janolus cristatus and Polycella faeroensis both seen in the marinas of St. Peter Port harbour feed on bryozoans.
This egg deposit from the nudibranch Aeolidia papillosa was attached to the side of a boulder. The boulder was turned for the photograph. The egg deposit was photographed dry whereas in the previous image another Aeolidia papillosa egg deposit was photographed underwater. There were two adult Aeolidia papillosa in the vicinity of this egg deposit, which was located close to the Guernsey end of the Lihou Island causeway.

File No. 090509 3882
©RLLord
fishinfo@guernsey.net
This egg deposit from the nudibranch Aeolidia papillosa was attached to the side of a boulder. The boulder was turned for the photograph. The egg deposit was photographed dry whereas in the previous image another Aeolidia papillosa egg deposit was photographed underwater. There were two adult Aeolidia papillosa in the vicinity of this egg deposit, which was located close to the Guernsey end of the Lihou Island causeway. File No. 090509 3882 ©RLLord fishinfo@guernsey.net
This egg deposit from the nudibranch Aeolidia papillosa was attached to the side of a boulder. The boulder was turned for the photograph. The egg deposit was photographed dry whereas in the previous image another Aeolidia papillosa egg deposit was photographed underwater. There were two adult Aeolidia papillosa in the vicinity of this egg deposit, which was located close to the Guernsey end of the Lihou Island causeway.

File No. 090509 3882
©RLLord
fishinfo@guernsey.net
See photo in original gallery.
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