The shell is moderately sized, solid, and fusiform (spindle-shaped) with a tall spire and a relatively short siphonal canal. It is characterized by its sculptured whorls, which feature prominent, rounded axial ribs crossed by incised spiral cords, creating a cancellated or beaded appearance. The suture is distinct and slightly undulating. The body whorl is convex and comprises slightly less than half the shell's total height. The aperture is ovate with a simple outer lip, and the columella is straight. The shell color is typically white or pale fawn. The length of the shell attains 30 mm, its diameter 10.4 mm.
Habitat and Ecology
As a member of the superfamily Conoidea, this species is a carnivorous predator. It likely uses a radular tooth and venom to capture and immobilize its prey, which probably consists of marine worms (polychaetes). Its deep-water habitat suggests it is part of the diverse benthic community of the continental slope. The species name "profundicola" means "dweller of the deep," reflecting its preferred habitat.
Taxonomy
This species was first described by the American malacologist Paul Bartsch in 1944. The genus Antiplanes is distinguished from related genera by its specific combination of shell sculpture and protoconch morphology. A common misspelling of a synonym is "Antiplanes diomedia" (intended to be "diomedea").
Synonyms
Antiplanes diomedia [sic] (misspelling)
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Distribution
his species has a wide range along the North Pacific coast of North America. This marine species occurs from the Arctic Ocean to California, United States. It is a deep-water (bathyal) species, typically found on muddy or sandy substrates along the continental slope at depths ranging from approximately 100 to over 1000 meters.
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