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common tower shell

Turritella communis


"The shell is a tall, slender, sharply pointed cone. There may be as many as 20 whorls, each bearing spiral ridges and grooves. The shell is brownish- yellow to white in colour and often with a lilac tinge on the base, and grows up to 3 cm in length and 1 cm wide. The shell aperture is small and squarish. The operculum is edged with pinnate bristles. The foot of the snail is small, the flesh buff with dark spots and streaks and there is white markings on the tentacles, siphon and foot."


"Abundant on muddy sediments in shallow water, more or less buried but maintaining contact with the water. This species is slow moving and sits on the seabed filtering seawater for particles of food. It may be gregarious, occurring in large numbers. It can be found down to 200 m."



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Spotted by

Algarve, Portugal

Spotted on Jul 14, 2013
Submitted on Jul 14, 2013

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