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Place name : West Light gullies, Rathlin Island. County : Antrim

Date : 2024-05-20 GPS : 55.30337,-6.28121. Depth : -15.0 to -25.0 m. [ View map ]

Site Description : Lower circalittoral bedrock with Caryophyllia smithii, Parasmittina trispinosa, and coralline algae; Lower circalittoral rock with Alcyonium digitatum and Actinothoe sphyrodeta.

Gully across bedrock platform leading to vertical cliff face at 30 m depth; European Lobster Homarus gammarus [00:00:30]; Twin fan worm Bispira volutacornis [00:02:35]; Dean mens' fingers Alcyonium digitatum [00:02:46]; Oaten pipes hydroid Tubularia indivisa [00:03:06]; Sandalled anemone Actinothoe sphyrodeta [00:03:14]; White cluster anemone Parazoanthus anguicomis [00:04:33]; Plumose anemone Metridium senile [00:04:53]; Antenna hydroid Nemertesia antennina [00:05:08]; Flat Aplidium Aplidium nordmanni [00:05:59].

Biotope 1 : Lower circalittoral bedrock with Caryophyllia smithii, Parasmittina trispinosa, and coralline algae

PORIFERA
Polymastia boletiformis O
Polymastia penicillus O
Tethya citrina O
Hymedesmia rathlinia P
CNIDARIA
Coryne eximia O
Eudendrium annulatum O
Abietinaria abietina O
Sertularia argentea O
Nemertesia antennina C
Epizoanthus couchii R
Cylista elegans O
Actinothoe sphyrodeta C
Caryophyllia smithii C
ANNELIDA
Bispira volutacornis R
CRUSTACEA
Homarus gammarus R
MOLLUSCA
Hinia (Hima) incrassata P
Hinia (Hima) incrassata P
Doto pinnatifida O
Okenia elegans P
Antiopella cristata O
Coryphella gracilis O
Coryphella lineata O
Edmundsella pedata O
Cuthonella concinna R
Facelina auriculata O
BRYOZOA
Crisia denticulata O
Flustra foliacea O
Parasmittina trispinosa C
TUNICATA
Ascidia mentula R
CHROMOPHYTA
Halopteris filicina R

Biotope 2 : Sponges and anemones on vertical circalittoral bedrock. CR.HCR.XFa.SpAnVt

PORIFERA
Dysidea fragilis R
Pachymatisma johnstonia C
Axinella infundibuliformis R
Polymastia boletiformis R
Iophon hyndmani O
Desmacella cf. annexa R
Haliclona urceolus R
Haliclona viscosa O
CNIDARIA
Tubularia indivisa O
Ectopleura larynx O
Halecium halecinum O
Sertularella sp. R
Aglaophenia tubulifera O
Alcyonium digitatum R
Parazoanthus anguicomus O
Metridium senile R
MOLLUSCA
Calliostoma zizyphinum R
ECHINODERMATA
Henricia oculata O
Asterias rubens R
Marthasterias glacialis R
Echinus esculentus R
TUNICATA
Aplidium nordmanni O
Polycarpa pomaria R
RHODOPHYTA
Delesseria sanguinea F

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