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]
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 1.2mm[5] or up to 1.8mm.[4] The height of the shell is up to 0.8mm[5] or up to 0.9mm.[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]
Ecology
This species lives in subterranean waters[5] and in springs.[2] This species is very rare.[4]
References
This article incorporates CC-BY-3.0 text from the reference[4]
1 2 Horsák M., Juřičková L. & Picka J. (2013). Měkkýši České a Slovenské republiky. Molluscs of the Czech and Slovak Republics. Kabourek, Zlín, 264 pp. p. 44-45 (in Czech and English).
1 2 Čejka T., Dvořák L., Horsák M. & Šteffek J. (2007). "Checklist of molluscs (Mollusca) in the Slovak Republic". Folia Malacologica15(2): 49-58.
1 2 3 4 5 6 (in Czech) Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. [Annotated list of mollusc species recorded outdoors in the Czech and Slovak Republics]". Malacologica Bohemoslovaca, Suppl. 1: 1-37. PDF.
(in Slovak) Ložek V. (1994). "Mäkkýše (Mollusca). In: Slovenský kras (Chránená krajinná oblasť – biosférická rezervácia), Rozložník M. & Karasová E. (eds), Osveta, Martin. pp.138–143.
(in Slovak) Ložek V. & Galvánek J. (1987). "Geologická poloha a biostratigrafický rozbor chráneného prírodného výtvoru Mičinské travertíny. Ochrana prírody8: 221–240.
This page is based on this Wikipedia article Text is available under the CC BY-SA 4.0 license; additional terms may apply. Images, videos and audio are available under their respective licenses.
