lobatus

Lobatus is a genus of large marine gastropods in the family Strombidae, commonly known as conchs. Members of Lobatus are characterized by thick, robust shells with a broad, relatively low spire and a flaring outer lip in mature individuals. They possess a long, fleshy siphon and a prominent, often claw-like operculum that aids in locomotion and defense. The genus includes several species that were previously classified in Strombus; taxonomic revisions in modern classifications frequently recognize Lobatus as a distinct lineage within Strombidae.

Lobatus species inhabit shallow tropical and subtropical seas, often on sandy bottoms, seagrass beds, or coral reef-associated environments. They are typically slow-moving grazers, feeding mainly on algae and detritus. Egg masses are laid in gelatinous clutches on the substrate, and young pass through a planktonic larval stage before settling.

Among the best-known members is the queen conch, Lobatus gigas, which has been targeted for commercial meat and collected for its large, attractive shell. Due to overexploitation, habitat degradation, and regulatory pressures, queen conch populations have declined in parts of their range, prompting management measures such as catch limits and export restrictions in several countries and regions. Beyond fisheries, Lobatus shells are valued by collectors and artisans.

Taxonomy within Strombidae remains under study, with ongoing molecular analyses refining the circumscription of Lobatus and related genera.