Pseudunela cornuta
| Pseudunela cornuta | |
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Schematic drawing of dorsal view of Pseudunela cornuta.
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Heterobranchia clade Euthyneura clade Panpulmonata clade Acochlidiacea clade Hedylopsacea |
| Family: | Pseudunelidae |
| Genus: | Pseudunela |
| Species: | P. cornuta |
| Binomial name | |
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Pseudunela cornuta (Challis, 1970) |
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| Synonyms | |
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Hedylopsis cornuta Challis, 1970 |
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Hedylopsis cornuta Challis, 1970
Pseudunela cornuta is a species of minute sea slug, an acochlidian, a shell-less marine and temporarily brackishgastropod mollusk in the family Pseudunelidae. Adults are about 3 mm long and live in the spaces between sand grains.
A complex interactive 3D reconstruction (a 3D visualization based on 420 paraffin histological sections) of the body of an individual of this species has been available since 2009.
Pseudunela cornuta is the type species of the genus Pseudunela.
Challis, who described the species in 1970, claimed to have deposited the holotype of Pseudunela cornuta, 20 paratypes and a slide with the radula of a further paratype in the Natural History Museum, London; furthermore, he claimed that 10 paratypes and a slide with another radula were deposited in the Museum of New Zealand Te Papa Tongarewa, Wellington; he said that the remaining paratypes and the sectioned material were stored in his private collection.
However, Neusser et al. (2009) found no evidence that the material ever arrived at these destinations. It seemed clear that no type material of Pseudunela cornuta was ever actually deposited in a public institution. Thus Neusser et al. (2009) designed the section series ZSM N° 20071911 (from a newly found specimen from the same collecting site as some of the material that was used for the original description) as a neotype, because of the apparent non-existence of the original type material. The sections of the neotype are deposited in the Zoologische Staatssammlung München, Mollusca Section.
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