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Steromphala umbilicalis (da Costa, 1778)
Steromphala umbilicalis feeds on algae, that they rasp of hard stones. Dull greenish grey in colour with reddish-purple broad diagonal stripes. This species is absent from the North Sea coast and eastern English Channel.
Synonymised names:
Gibbula obliquata (Gmelin, 1791) · unaccepted
Gibbula obliquata var. gradata Pallary, 1920 · unaccepted (synonym)
Gibbula umbilicalis (da Costa, 1778) · unaccepted
Trochus cinereus Linnaeus, 1758 sensu Blainville, 1826 · unaccepted (synonym)
Trochus obliquatus Gmelin, 1791 · unaccepted (dubious synonym)
Trochus sarniensis Norman, 1888 · unaccepted (synonym)
Trochus umbilicalis da Costa, 1778 · unaccepted
Trochus umbilicatus Montagu, 1803 · unaccepted (synonym)
Trochus umbilicatus var. atropurpurea Jeffreys, 1865 · unaccepted (synonym)
Trochus umbilicatus var. decorata Jeffreys, 1865 · unaccepted (synonym)
Steromphala umbilicalis feeds on algae, that they rasp of hard stones. Dull greenish grey in colour with reddish-purple broad diagonal stripes. This species is absent from the North Sea coast and eastern English Channel.
Synonymised names:
Gibbula obliquata (Gmelin, 1791) · unaccepted
Gibbula obliquata var. gradata Pallary, 1920 · unaccepted (synonym)
Gibbula umbilicalis (da Costa, 1778) · unaccepted
Trochus cinereus Linnaeus, 1758 sensu Blainville, 1826 · unaccepted (synonym)
Trochus obliquatus Gmelin, 1791 · unaccepted (dubious synonym)
Trochus sarniensis Norman, 1888 · unaccepted (synonym)
Trochus umbilicalis da Costa, 1778 · unaccepted
Trochus umbilicatus Montagu, 1803 · unaccepted (synonym)
Trochus umbilicatus var. atropurpurea Jeffreys, 1865 · unaccepted (synonym)
Trochus umbilicatus var. decorata Jeffreys, 1865 · unaccepted (synonym)