Casuaria

Casuaria is a genus of sea snails, marine gastropod mollusks in the family Strombidae, the true conchs. While the name "Casuaria" was formerly used to classify certain strombids, current taxonomic classification generally places the species previously assigned to Casuaria within the genus Lentigo. Therefore, Casuaria is often considered a synonym of Lentigo.

Historically, the genus Casuaria was differentiated from other strombids based on subtle differences in shell morphology, particularly concerning the shape and prominence of the stromboid notch and the overall structure of the outer lip of the shell. However, molecular and morphological studies have led to a reevaluation of these classifications.

The name Casuaria itself is derived from the Cassowary bird, reflecting a historical association based on perceived similarities between the shell's appearance and the bird's casque.

Species formerly classified under Casuaria are found in the Indo-Pacific region and are characterized by their distinctive, often brightly colored shells. They are generally herbivorous, grazing on algae and detritus in shallow water environments.

Because of the taxonomic shift, using the name Casuaria can lead to confusion. It is more accurate and up-to-date to refer to these snails using the genus Lentigo.