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  • 43 Phorcus lineatus COMPARISON Steromphala cineraria

    43 Phorcus lineatus COMPARISON Steromphala cineraria
  • 41 Phorcus lineatus COMPARISON Steromphala umbilicalis

    41 Phorcus lineatus COMPARISON Steromphala umbilicalis
  • 40 Phorcus lineatus COMPARISON Steromphala umbilicalis

    40 Phorcus lineatus COMPARISON Steromphala umbilicalis
  • 35 Steromphala umbilicalis album. COMPARISON image Steromphala pennanti.

    35 Steromphala umbilicalis album. COMPARISON image Steromphala pennanti.
  • 34 Steromphala umbilicalis album. COMPARISON image Steromphala tumida.

    34 Steromphala umbilicalis album. COMPARISON image Steromphala tumida.
  • 34 Steromphala cineraria album COMPARISON images of Steromphala pennanti

    34 Steromphala cineraria album COMPARISON images of Steromphala pennanti
  • 33 Steromphala umbilicalis album. COMPARISON image of Phorcus lineatus; short zig-zag streaks. Radiating bands only on early whorls.

    33 Steromphala umbilicalis album. COMPARISON image of Phorcus lineatus; short zig-zag streaks. Radiating bands only on early whorls.
  • 33 Steromphala cineraria album. COMPARISON images of Gibbula tumida

    33 Steromphala cineraria album. COMPARISON images of Gibbula tumida
  • 32 Steromphala umbilicalis album. COMPARISON image of S. cineraria; shell profile higher than G. umbilicalis when adult, but low when young.

    32 Steromphala umbilicalis album. COMPARISON image of S. cineraria; shell profile higher than G. umbilicalis when adult, but low when young.
  • 32 Steromphala cineraria album. COMPARISON images of Phorcus lineatus

    32 Steromphala cineraria album. COMPARISON images of Phorcus lineatus
  • 31 Steromphala umbilicalis album COMPARISON image of S. cineraria; radiating, greyish bands. Umbilicus narrows with growth until closed when fully grown.

    31 Steromphala umbilicalis album COMPARISON image of S. cineraria; radiating, greyish bands. Umbilicus narrows with growth until closed when fully grown.
  • 31 Steromphala cineraria comparison with S. umbilicalis

    31 Steromphala cineraria comparison with S. umbilicalis
  • 30 Steromphala umbilicalis shedding ova. February 2013. Menai Strait.

    30 Steromphala umbilicalis shedding ova. February 2013. Menai Strait.
  • 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.
  • 27 Comparison small G. umbilicalis and G. cineraria.

    27 Comparison small G. umbilicalis and G. cineraria.
  • 26 Comparison small S. umbilicalis and S. cineraria.

    26 Comparison small S. umbilicalis and S. cineraria.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 16 Steromphala umbilicalis. H. 7.9mm, B. 12mm. Aug. 2013. Menai Strait, Wales.

    16 Steromphala umbilicalis. H. 7.9mm, B. 12mm. Aug. 2013. Menai Strait, Wales.
  • 15 Steromphala umbilicalis. H. 7.9mm, B. 12mm. Aug. 2013. Menai Strait, Wales.

    15 Steromphala umbilicalis. H. 7.9mm, B. 12mm. Aug. 2013. Menai Strait, Wales.
  • 14 Steromphala umbilicalis. H. 7.9mm, B. 12mm. Aug. 2013. Menai Strait, Wales.

    14 Steromphala umbilicalis. H. 7.9mm, B. 12mm. Aug. 2013. Menai Strait, Wales.
  • 13 Steromphala umbilicalis. Radula action 2.

    13 Steromphala umbilicalis. Radula action 2.
  • 12 Steromphala umbilicalis. Radula action 1.

    12 Steromphala umbilicalis. Radula action 1.
  • 11 Steromphala umbilicalis. Mouth.

    11 Steromphala umbilicalis. Mouth.
  • 10 Steromphala umbilicalis. Radula action 3.

    10 Steromphala umbilicalis. Radula action 3.
  • 09 Steromphala umbilicalis

    09 Steromphala umbilicalis
  • 08 Steromphala umbilicalis

    08 Steromphala umbilicalis
  • 07 Steromphala umbilicalis

    07 Steromphala umbilicalis
  • 06 Steromphala umbilicalis.

    06 Steromphala umbilicalis.
  • 05 Gibbula umbilicalis.

    05 Gibbula umbilicalis.
  • 04 Steromphala umbilicalis

    04 Steromphala umbilicalis
  • 03 Steromphala umbilicalis

    03 Steromphala umbilicalis
  • 02 Steromphala umbilicalis

    02 Steromphala umbilicalis
  • 01 Steromphala umbilicalis.

    01 Steromphala umbilicalis.
  • Imprint
Marinvert

Photographic guide to the identification and biology of European marine invertebrates

Marinvert
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