About Jenneria pustulata (Lightfoot), 1786
Jenneria pustulata is a common species of sea snail. On average, the shells of this species grow between 15 and 27 millimetres (0.59–1.06 inches) in length, and are typically spindle-like or oval in shape. Its dorsum surface is covered in numerous bright orange-red bumps (called pustules, which gives the species its Latin name pustulata), each surrounded by a dark ring. The base color of the dorsal surface is grey, beige, or brown. Prominent fine labial teeth are white or pale brown, and extend across the entire base, with dark brown gaps between each tooth. In living individuals of this species, the mantle is greyish, and bears long, tree-shaped sensory papillae. This species can be found in California, the Gulf of California in western Mexico, Costa Rica, Nicaragua, western Panama, Ecuador, Peru, and the Galapagos. These sea snails inhabit tropical to temperate waters, ranging from low tide zones to subtidal depths, and are most often found on coral reefs or rocks. They feed at night on stony corals, mainly Pocillopora species in the order Scleractinia, and remain inactive and resting during the day.
