sealord's Photos : Photo Keywords : atrial siphon

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This image shows the large ascidian Phallusia mamillata attached to a concrete pillar in the Queen Elizabeth 2 marina, St. Peter Port, Guernsey. This image shows the oral tentacles guarding the entrance of the oral siphon. The atrial siphon is below and to the right. Photographed on 26 September 2006
File No. 260906 3620
©RLLord
fishinfo@guernsey.net

The ascidian, Ciona intestinalis, growing from the side of a pontoon in the Queen Elizabeth II marina, St. Peter Port, Guernsey.
Photographed on 26 September 2006
File No. 260906 3604
©RLLord
fishinfo@guernsey.net

The leathery sea squirt, Styela clava, is a species introduced into British waters from Asian waters probably with military ships returning to the U.K. from the Korean war in 1953. It is common in the Queen Elizabeth 2 marina, St. Peter Port, Guernsey.
Photographed on 26 September 2006.
File No. 260906 3707
©RLLord
fishinfo@guernsey.net

The invasive ascidian Corella eumyota living on the side of the pontoons in the Queen Elizabeth 2 marina, St. Peter Port harbour, Guernsey
Photographed on 30 August 2005
File No. 12-792
©RLLord
fishinfo@guernsey.net

The ascidian, Ciona intestinalis, grows profusely in the Queen Elizabeth 2 marina, St. Peter Port, Guernsey. The individual in the centre of the photographed has closed the opening to the oral and the atrial siphon.
Photographed on 16 August 2005.
File No. 3-788
©RLLord
fishinfo@guernsey.net

The ascidian Ciona intestinalis is abundant in the Queen Elizabeth 2 marina, St. Peter Port, Guernsey.
Photographed on 25 August 2003.
File No. 25-701
©RLLord

One of the most elegant looking ascidian is the light-bulb sea squirt, Clavelina lepadiformis, which was photographed in the Queen Elizabeth 2 marina, St. Peter Port, Guernsey. This image shows boluses headed for expulsion via the atrial siphon.
Photographed on 25 August 2003.
File No. 6-700
©RLLord
fishinfo@guernsey.net

Ascidiella scabra from the Queen Elizabeth 2 marina in St. Peter Port, Guernsey.
Photographed on 19 September 2004.
©RLLord
fishinfo@guernsey.net

Ascidiella aspersa QEII marina 250803 31-701 smgb

Ascidiella aspersa QEII marina 250803 31-701 smgb

Ascidiella aspersa QEII marina 250803 31-701 smgb

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