The Auger Shell – Turritellinella tricarinata is a species of sea snail, a marine gastropod mollusk in the family Turritellidae. These snails are known for their distinctive, elongated, spiral shells that resemble miniature towers.
Description & Characteristics
The Turritellinella tricarinata shell is typically 15–35 millimeters in length. Its elongated, slender shape is a characteristic feature, featuring numerous whorls that gradually increase in size towards the apex. The surface of the shell is often smooth, but may exhibit fine, spiral ridges. The shell color can vary, ranging from white to pale brown or yellowish.
Habitat and Occurrence
The Auger Shell – Turritellinella tricarinata is predominantly found in the intertidal and subtidal zones of the Indo-Pacific region, inhabiting shallow marine environments. They are commonly observed in areas with sandy or muddy bottoms and often inhabit rocky outcrops and coral reefs. These snails can be found in a variety of marine zones, including the neritic zone, extending to depths of up to 100 meters.
Taxonomy
The species Turritellinella tricarinata belongs to the family Turritellidae, which includes a diverse group of marine snails characterized by their tower-like shells. They are classified within the Class Gastropoda, which encompasses a vast array of mollusks, and the Order Caenogastropoda incertae sedis, a group of snails with a diverse range of shell shapes and ecological roles.
Feeding
The Auger Shell – Turritellinella tricarinata is a filter feeder. They use their gills to extract microscopic organisms like algae and plankton from the surrounding water. This feeding strategy allows them to thrive in environments rich in suspended organic matter.
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