Lyncina ventriculus
An uncommon cowry with chocolate sides and four dark bands.
Lyncina ventriculus, called the ventral cowry, is a marine gastropod mollusk in the cowry family Cypraeidae. Its shells, which are smooth and glossy, are generally oval and average 45–50 mm in length, with a range from 32 mm to 75 mm. The dorsal surface is typically reddish brown, crossed by four dark brown bands, while the sides are a deep chocolate brown marked with several fine vertical lines. The base can be white, pale pink, or pale brown; the aperture is long and narrow, with short teeth on both lips. This shell closely resembles those of *Lyncina schilderorum*, *Lyncina carneola*, and *Lyncina sulcidentata*. In living individuals, the mantle is dark grey with lighter sensory papillae.
This species occurs in the eastern Indian Ocean (Malaysia, eastern Indonesia, the Cocos Islands, and Christmas Island) and across the central and western Pacific Ocean, from the South China Sea, Taiwan, the Philippines, Samar Island, Guam, Melanesia, the Solomon Islands, Micronesia, and New Caledonia to eastern Polynesia, Tahiti, and Hawaii. It inhabits tropical intertidal and subtidal waters on the continental shelf down to about 30 meters in depth, typically on coral reefs.
Quick Facts
- Genus
- Lyncina
- Species
- ventriculus
Facts from the source article.
Lore & Background
The shells of Lyncina ventriculus are smooth, shiny, and usually oval in shape. The dorsum surface is generally reddish brown with four dark brown transversal bands, while the sides are chocolate brown and bear several vertical thin lines. The base may be white, pale pink, or pale brown, and the aperture is long and narrow with short teeth on both lips. In living specimens, the mantle is dark grey with clearer sensorial papillae. This species is similar in appearance to Lyncina schilderorum, Lyncina carneola, and Lyncina sulcidentata.
Reader's Guide
Lyncina ventriculus holds significance as a representative of the diverse cowry fauna of the tropical Indo-Pacific. Its shell, with its chocolate brown sides and four dark bands, is a recognizable form among cowry collectors and malacologists. The species occurs across a broad range from the eastern Indian Ocean to the central and western Pacific, including locations such as Malaysia, Indonesia, the Philippines, Guam, Melanesia, Micronesia, New Caledonia, Tahiti, and Hawaii. It inhabits coral reefs in intertidal and subtidal zones down to about 30 meters. The ventral cowry is not among the most commonly encountered cowries, which adds to its interest for those studying Cypraeidae. Its similarity to other Lyncina species underscores the subtle morphological distinctions that define cowry taxonomy.
Did You Know?
- The shell of Lyncina ventriculus can reach up to 75 mm in length.
- Its sides are chocolate brown with several vertical thin lines.
- The living cowry has a dark-grey mantle with clearer sensorial papillae.
- This species is distributed from the eastern Indian Ocean to Hawaii.
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