Amalda contusa is a species of sea snail, a marine gastropod mollusk in the family Ancillariidae. The species is commonly known as the “contusa ancillaria” and is a fascinating example of the diversity found within the marine environment.
Description & Characteristics
Amalda contusa, like other members of its family, exhibits a characteristic elongated, fusiform shape. It is typically 10-15 millimeters in length, with a smooth, glossy shell that is generally white or cream-colored, sometimes with subtle hints of brown or orange. The shell is marked by fine longitudinal lines, and a distinct, thickened, and slightly raised lip distinguishes the aperture. The spire, the pointed end of the shell, is relatively short and consists of a few whorls.
Habitat and Occurrence
Amalda contusa is a benthic species, meaning it lives on or near the seabed. It is typically found in depths ranging from 10 to 50 meters, inhabiting a variety of marine zones. Its preferred habitat includes sandy bottoms and coral reefs, making it a common sight in these vibrant ecosystems.
Taxonomy
Amalda contusa belongs to a family of gastropods known as the Ancillariidae, which encompasses a variety of shell-bearing snails. The family falls within the order Neogastropoda, a diverse group of predatory sea snails with a well-developed siphon, and the class Gastropoda, which encompasses a vast array of mollusks, including snails, slugs, and limpets.
Feeding
Like many gastropods, Amalda contusa is a carnivorous species. It primarily feeds on smaller marine invertebrates, such as worms and crustaceans. Its feeding habits, combined with its characteristic shell shape, contribute to its role within the delicate balance of marine ecosystems.
Image References