| Hauffenia sp. nov. | |
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| Apertural view of a shell of Hauffenia from Slovakia | |
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| Species: | H. sp. nov. |
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| Hauffenia sp. nov. | |
Hauffenia sp. nov. is an as yet undescribed (in 2013) [2] species of freshwater snail that lives underground, an aquatic gastropod mollusk in the family Hydrobiidae. This species is found in Slovakia.
The genus Hauffenia is taxonomically problematic. [3]
Šteffek et al. (2011) [4] confirmed that the snail from Slovakia appears to belong to the genus Hauffenia, based on the morphology of the penial characters. [4]
However, molecular phylogeny research based on sequences of mitochondrial cytochrome-c oxidase I (COI) genes appears to demonstrate that although these snails belong to the family Hydrobiidae, they are not closely related to the genus Hauffenia. [4]
These snails from Slovakia may actually represent not one species but two genera: Hauffenia and Lobaumia . [4]
Specimens of this species are preserved in private collections. [3]
This species is endemic to Slovakia. [5] It lives only in the Slovak Karst, where it was discovered in the 1980s. [5]
The former (subrecent) distribution of this species included also Miličské travertíny travertines near Banská Bystrica. [5]
The shape of the shell is valvatiform. The shell is thin-walled and glossy. [4] The shell has 2–2.5 rapidly but regularly growing whorls. [4] The spire is low or very low. [4] The umbilicus is very wide, with the earlier whorls visible inside. [4] The teleoconch is very finely sculptured with weakly marked growth lines. [4] The protoconch has about 1¼ whorls growing slowly; the border between the proto- and teleoconch is indistinct; the protoconch surface is nodular. [4]
The width of the shell is up to 1.2 mm [5] or up to 1.8 mm. [4] The height of the shell is up to 0.8 mm [5] or up to 0.9 mm. [4]
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The animal has no body pigment and no eyes. [4]
The sexes are distinct (females and males occur). Reproductive system: The penis is broad and blunt, has a weakly marked lateral lobe on its left side near the apex, a very small stylet, a penial duct running in a zigzag, and no visible trace of an ejaculatory duct. [4] The female reproductive organs are of Hauffenia-type. [4]
This species lives in subterranean waters [5] and in springs. [2] This species is very rare. [4]
Oxyloma elegans is a species of small European land snail, a terrestrial pulmonate gastropod mollusk belonging to the family Succineidae, the amber snails.
Lucilla singleyana is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusc or micromollusk in the family Helicodiscidae.
Myxas glutinosa is a species of small air-breathing freshwater snail, an aquatic gastropod mollusc in the family Lymnaeidae, the pond snails.
Oxychilus cellarius, common name cellar glass-snail, is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Oxychilidae, the glass snails.
Anisus vortex is a species of small freshwater snail, an aquatic gastropod mollusk in the family Planorbidae, the ram's horn snails and their allies.
Anisus septemgyratus is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails.
Bythinella pannonica is a species of small freshwater snail with an operculum, an aquatic gastropod mollusk in the family Hydrobiidae.
Vallonia declivis is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Valloniidae.
Acroloxus lacustris, or the lake limpet, is a small freshwater limpet or snail, a species of aquatic gastropod mollusk in the family Acroloxidae.
Planorbis carinatus is species of air-breathing freshwater snail, a pulmonate gastropod mollusk in the family Planorbidae, the ramshorn snails.
Valvata cristata is a species of minute freshwater snail with an operculum, an aquatic gastropod mollusk or micromollusk in the family Valvatidae, the valve snails.
Valvata macrostoma, also known as the large mouthed valve snail, is a species of minute freshwater snail with an operculum, an aquatic gastropod mollusk in the family Valvatidae, the valve snails.
Bythinella austriaca is a species of very small freshwater snail with an operculum, an aquatic gastropod mollusk in the family Amnicolidae.
Physa fontinalis, common name the common bladder snail, is a species of air-breathing freshwater snail, an aquatic gastropod mollusk in the family Physidae. The shells of species in the genus Physa are left-handed or sinistral.
Alzoniella slovenica is a species of very small or minute freshwater snail with an operculum, an aquatic gastropod mollusk in the family Hydrobiidae, which are sometimes known as the snouted water snails.
Ladislavella terebra is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusc in the family Lymnaeidae, the pond snails.
Bathyomphalus contortus is a species of small air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails and their allies.
Gyraulus albus, common name white ramshorn, is a small species of freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails.
Lucilla scintilla is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Helicodiscidae.
This article incorporates CC-BY-3.0 text from the reference [4]
