Tornus (gastropod)

Tornus is a genus of minute sea snails, marine gastropod mollusks within the family Tornidae. These snails are typically very small, often less than 5mm in size.

Description

Snails in the genus Tornus generally exhibit a discoidal or flattened spiral shell shape. Their shells are often glossy and may be sculptured with spiral ridges or other ornamentation. The aperture is typically rounded. Due to their small size, detailed observation often requires magnification.

Distribution

Species of Tornus are found in various marine environments worldwide, including shallow waters, intertidal zones, and deeper sea beds. Their distribution is often linked to the availability of suitable substrates and food sources.

Ecology

The ecology of Tornus snails is not completely understood due to their small size and cryptic habits. They are believed to be primarily grazers, feeding on microalgae and detritus found on rocks and other surfaces. They likely play a role in the marine food web as a food source for larger invertebrates and fishes.

Taxonomy

The taxonomy of Tornus and related genera within the Tornidae can be complex and subject to revision based on morphological and molecular data. The classification may change over time as new research emerges. Historically, some species now assigned to other genera may have been classified under Tornus.

Species

The number of recognized species within the genus Tornus can vary depending on the taxonomic authority consulted. Specific species lists can be found on databases such as the World Register of Marine Species (WoRMS).