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  • 30 Steromphala umbilicalis shedding ova. February 2013. Menai Strait.

    30 Steromphala umbilicalis shedding ova. February 2013. Menai Strait.
  • 30 Steromphala cineraria. Shell 12mm high. Menai Strait, Wales. April 2011.

    30 Steromphala cineraria. Shell 12mm high. Menai Strait, Wales. April 2011.
  • 29 Steromphala cineraria. April 2011. Menai Strait, Wales.

    29 Steromphala cineraria.  April 2011. Menai Strait, Wales.
  • 29 Phorcus lineatus

    29 Phorcus lineatus
  • 29 Steromphala umbilicalis adult 16.4mm wide (N. Scotland) and (on right) young Phorcus lineatus 14mm wide (Weymouth).

    29  Steromphala umbilicalis adult 16.4mm wide (N. Scotland) and (on right) young Phorcus lineatus 14mm wide (Weymouth).
  • 28 Steromphala umbilicalis. July 1975. Loch Eriboll.

    28 Steromphala umbilicalis. July 1975. Loch Eriboll.
  • 28 Steromphala cineraria profile variation. Aug. 2013. Menai Strait, Wales.

    28 Steromphala cineraria profile variation. Aug. 2013. Menai Strait, Wales.
  • 28 Phorcus lineatus

    28 Phorcus lineatus
  • 27 Steromphala cineraria. Adult with tall pyramidal profile. March 2011. Menai Strait.

    27 Steromphala cineraria. Adult with tall pyramidal profile. March 2011. Menai Strait.
  • 27 Phorcus lineatus

    27 Phorcus lineatus
  • 27 Comparison small G. umbilicalis and G. cineraria.

    27 Comparison small G. umbilicalis and G. cineraria.
  • 26 Steromphala cineraria. April 2011. Menai Strait.

    26 Steromphala cineraria. April 2011. Menai Strait.
  • 26 Phorcus lineatus

    26 Phorcus lineatus
  • 26 Gibbula magus. Height 19mm, breadth 25mm. Cardigan Bay, Wales. 2015.

    26 Gibbula magus. Height 19mm, breadth 25mm. Cardigan Bay, Wales. 2015.
  • 26 Comparison small S. umbilicalis and S. cineraria.

    26 Comparison small S. umbilicalis and S. cineraria.
  • 25 Steromphala cineraria with unpigmented body. Menai Strait, Wales. April 2011.

    25 Steromphala cineraria with unpigmented body. Menai Strait, Wales. April 2011.
  • 25 Phorcus lineatus

    25 Phorcus lineatus
  • 25 Gibbula magus. Height 19mm, breadth 25mm. Cardigan Bay, Wales. 2015.

    25 Gibbula magus. Height 19mm, breadth 25mm. Cardigan Bay, Wales. 2015.
  • 25 Comparison of medium-sized S. umbilicalis and S. cineraria. Aug. 2013. Menai Strait, Wales.

    25 Comparison of medium-sized S. umbilicalis and S. cineraria. Aug. 2013. Menai Strait, Wales.
  • 24 Steromphala umbilicalis. H. 7.9mm, B. 12mm. Aug. 2013. Menai Strait, Wales.

    24 Steromphala umbilicalis. H. 7.9mm, B. 12mm. Aug. 2013. Menai Strait, Wales.
  • 24 Steromphala cineraria. H. 14mm. Menai Strait, Wales. February 2014.

    24 Steromphala cineraria. H. 14mm. Menai Strait, Wales. February 2014.
  • 24 Phorcus lineatus

    24 Phorcus lineatus
  • 24 Gibbula magus. Height 19mm, breadth 25mm. Cardigan Bay, Wales. 2015.

    24 Gibbula magus.  Height 19mm, breadth 25mm. Cardigan Bay, Wales. 2015.
  • 23 Steromphala umbilicalis. H. 6mm, B.11.5mm. Aug. 2013. Menai Strait, Wales.

    23 Steromphala umbilicalis. H. 6mm, B.11.5mm. Aug. 2013. Menai Strait, Wales.
  • 23 Steromphala cineraria. Menai Strait, Wales. February 2014.

    23 Steromphala cineraria. Menai Strait, Wales. February 2014.
  • 23 Phorcus lineatus

    23 Phorcus lineatus
  • 23 Gibbula magus. Height 25,5mm, breadth 31,5mm. Cardigan Bay, Wales. 2015.

    23 Gibbula magus. Height 25,5mm, breadth 31,5mm. Cardigan Bay, Wales. 2015.
  • 22 Steromphala umbilicalis. H. 6mm, B.11.5mm. Aug. 2013. Menai Strait, Wales.

    22 Steromphala umbilicalis. H. 6mm, B.11.5mm. Aug. 2013. Menai Strait, Wales.
  • 22 Steromphala cineraria. Menai Strait, Wales. February 2014.

    22 Steromphala cineraria. Menai Strait, Wales. February 2014.
  • 22 Phorcus lineatus

    22 Phorcus lineatus
  • 22 Gibbula magus. Height 19mm, breadth 25mm. Cardigan Bay, Wales. 2015.

    22 Gibbula magus. Height 19mm, breadth 25mm. Cardigan Bay, Wales. 2015.
  • 21 Steromphala umbilicalis. H. 6mm, B.11.5mm. Aug. 2013. Menai Strait, Wales.

    21 Steromphala umbilicalis. H. 6mm, B.11.5mm. Aug. 2013. Menai Strait, Wales.
  • 21 Steromphala cineraria. Shell height 14mm. Menai Strait, Wales. February 2014.

    21 Steromphala cineraria. Shell height 14mm. Menai Strait, Wales. February 2014.
  • 21 Phorcus lineatus

    21 Phorcus lineatus
  • 21 Gibbula magus. Height 19mm, breadth 25mm. Cardigan Bay, Wales. 2015.

    21 Gibbula magus. Height 19mm, breadth 25mm. Cardigan Bay, Wales. 2015.
  • 20 Steromphala umbilicalis. H. 7.9mm, B. 12mm. Aug. 2013. Menai Strait, Wales.

    20 Steromphala umbilicalis. H. 7.9mm, B. 12mm. Aug. 2013. Menai Strait, Wales.
  • 20 Steromphala cineraria. Menai Strait, Feb. 2014.

    20 Steromphala cineraria. Menai Strait, Feb. 2014.
  • 20 Phorcus lineatus

    20 Phorcus lineatus
  • 20 Gibbula magus. Cardigan Bay, Wales. 2015.

    20 Gibbula magus. Cardigan Bay, Wales. 2015.
  • 19 Steromphala umbilicalis. H. 7.9mm, B. 12mm. Aug. 2013. Menai Strait, Wales.

    19 Steromphala umbilicalis. H. 7.9mm, B. 12mm. Aug. 2013. Menai Strait, Wales.
  • 19 Steromphala cineraria. H. 14mm. Menai Strait, Wales. February 2014.

    19 Steromphala cineraria. H. 14mm. Menai Strait, Wales. February 2014.
  • 19 Phorcus lineatus

    19 Phorcus lineatus
  • 19 Gibbula magus. Cardigan Bay, Wales. 2015.

    19 Gibbula magus. Cardigan Bay, Wales. 2015.
  • 18 Steromphala umbilicalis. H. 6mm, B.11.5mm. Aug. 2013. Menai Strait, Wales.

    18 Steromphala umbilicalis. H. 6mm, B.11.5mm. Aug. 2013. Menai Strait, Wales.
  • 18 Steromphala cineraria. Shell height 14mm. Menai Strait, Wales. February 2014.

    18 Steromphala cineraria. Shell height 14mm. Menai Strait, Wales. February 2014.
  • 18 Phorcus lineatus

    18 Phorcus lineatus
  • 18 Gibbula magus. Cardigan Bay, Wales. 2015.

    18 Gibbula magus. Cardigan Bay, Wales. 2015.
  • 17 Steromphala umbilicalis. H. 7.9mm, B. 12mm. Aug. 2013. Menai Strait, Wales.

    17 Steromphala umbilicalis. H. 7.9mm, B. 12mm. Aug. 2013. Menai Strait, Wales.
  • 17 Steromphala cineraria. Shell height 14mm. Menai Strait, Wales. February 2014.

    17 Steromphala cineraria. Shell height 14mm. Menai Strait, Wales. February 2014.
  • 17 Phorcus lineatus

    17 Phorcus lineatus
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Marinvert

Photographic guide to the identification and biology of European marine invertebrates

Marinvert
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