Tosapusia kalimnanensis
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| Tosapusia kalimnanensis | |
|---|---|
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| Holotype and paratype from the South Australian Museum | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Superfamily: | Turbinelloidea |
| Family: | Costellariidae |
| Genus: | Tosapusia |
| Species: | T. kalimnanensis |
| Binomial name | |
| Tosapusia kalimnanensis (Cernohorsky, 1970) | |
| Synonyms[1] | |
| |
Tosapusia kalimnanensis is an extinct species of sea snail, a marine gastropod mollusk, in the family Costellariidae, the ribbed miters.[1] The species is known from Pliocene fossil formations in Victoria, Australia.
Cernohorsky described the species as below:
Shell up to 20.0 mm (0.79 in) in length, somewhat terebriform in shape, last whorl slightly inflated, smooth and shining, teleoconch of 7 almost flat-sided whorls, protoconch of 1½-1¾ smooth embryonic whorls. Sutures distinct and indented by a narrow, ill-defined subsutural band, whorls sculptured with slender, angulate and slightly curved axial ribs, interspaces smooth, base of body whorl constricted, siphonal fasciole with a few oblique cords. Aperture shorter than the spire, outer lip convex but constricted basally, columella with 4 oblique folds, siphonal canal straight.[2]
The species' shell is visually similar to T. turriformis, but can be distinguished due to T. kalimnanensis having narrower axial elements, and due to T. turriformis having a whorl periphery shifted abapically.[3]
Taxonomy
The species was first described as Mitra terebraeformis in 1889 by Ralph Tate.[4] In 1970, Walter Oliver Cernohorsky gave the species the provisional name Vexillum (Costellaria) kalimnanense, after finding that the name given by Reeve was invalid name due to a different species being described using this name in 1848 by Timothy Abbott Conrad.[5] In 2017, the species was recombined as a part of the genus Tosapusia, and given the name Tosapusia kalimnanensis.[3][6]