5 photos - 2 species
Introduction
This family is characterized by trochospiral right-wound shells.
The adult size ranges from about 5 mm to 130 mm.
An inner layer of permutation is deposited in the shell.
The gyre snails are a large family of sea-dwelling snails.
Tectus dentatus
Toothed top shell
Maximum 8 cm
Its shell is often encrusted with red algae and invertebrates.
The cream-colored mantle becomes visible at night
when it grazes algae from hard bottoms.
Photos 1 - 3 Johnny: Hurghada Egypt
Trochus maculatus
Maculated top shell
Maximum 5 cm
Sucked in during the day, foraging in the reef at night.
Photos 1 -2 Johnny: Hurghada Egypt