| Erronea ovum | |
|---|---|
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| A shell of Erronea ovum from Solomon Islands, anterior end towards the right | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Cypraeidae |
| Genus: | Erronea |
| Species: | E. ovum |
| Binomial name | |
| Erronea ovum Gmelin 1791 | |
| Synonyms | |
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Erronea ovum, common name the egg cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
The shells of these quite common cowries reach on average 22–26 millimetres (0.87–1.02 in) of length, with a minimum size of 16 millimetres (0.63 in) and a maximum size of 41 millimetres (1.6 in). The dorsum surface of Erronea ovum is smooth, shiny and generally dark brown, dark olive green or greyish, often with a darker wide trasversal band. They are egg-shaped (hence the Latin name ovum, meaning egg). The base and the margins are usually white or pale brown, with yellowish teeth, but in Erronea ovum chrysostoma the teeth are pink-orange. In the living cowries mantle is greyish, with long tree-shaped sensorial papillae.
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This species occurs from Southeast Asia to the Southwest Pacific, along the coasts of Japan, East China, Thailand, Indonesia, Malaysia, Papua-New Guinea, western Australia, Philippines, Palau Islands, Solomon Islands, Micronesia and New Caledonia.
Erronea ovum lives in the tropical and subtropical zone, in shallow intertidal water up to 3–10 metres (9.8–32.8 ft) of depth, mainly on coral reefs.
Lyncina leviathan is a species of tropical sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
Chelycypraea testudinaria, common name the tortoise cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
Talostolida teres, common name the tapering cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
Naria miliaris, common name the millet cowry or the inocellate cowry or the military cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
Bistolida kieneri, common name : Kiener's cowry, is a species of sea snail, a cowry, a marine gastropod mollusc in the family Cypraeidae, the cowries.
Mauritia maculifera, common name : the blotched cowry or reticulated cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
Naria spurca, common name the dirty cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
Erronea errones, the wandering cowry or erroneous cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
Mauritia grayana, the 'Gray's arabica cowry', is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
Mauritia histrio, common name the harlequin cowry or the stage cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
Mauritia scurra, common name the jester cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
Austrasiatica langfordi, common name : Langford's cowry, is a species of sea snail, a cowry, a marine gastropod mollusc in the family Cypraeidae, the cowries.
Nucleolaria nucleus, the wrinkled cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
Talparia talpa, common name the mole cowry or chocolate banded cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
Trona stercoraria, common name the rat cowry or droppings cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
Zonaria pyrum, common name the pear cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
Contradusta pulchella, common name the pretty cowry or beautiful (little) cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
Erronea pyriformis, common name the pear-shaped cowrie, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
Lyncina schilderorum, common names the sandy cowry or Schilder's cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries. This species was named in honor of Franz and Maria Schilder, two German cowry biologists.
Eclogavena quadrimaculata, the four-spotted cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
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