Bythinella


Bythinella is a genus of very small freshwater snails, an aquatic gastropod mollusk in the family Bythinellidae.
These gonochoristic snails are small animals, with a shell length of about 2–4 mm. Amnicola is a close relative, containing North American snails with essentially similar appearance and ecology. The scientific name means "small Bithynia"; the latter snail genus is somewhat similar at a casual glance but not at all closely related among the Rissooidea.

Distribution

The present genus occurs in springs, and sometimes caves or groundwater, from Catalonia across central Europe to the Aegean Region of Turkey. In and around France a particularly high diversity of these snails is found. Due to the limited range and special and easily destroyed habitat, these snails are liable to become endangered species.

Species

More than 80 species and subspecies are recognized at present. However, it is not at all clear that all of those recognized as good species are actually that distinct, and some in fact seem to be local morphs instead of valid taxa. Some undescribed species are also known to exist.Bythinella anatolica Yıldırım, Kebapçı & Bahadır Koca, 2015Bythinella aneliae Georgiev & Stoycheva, 2011Bythinella angelovi Glöer & Georgiev, 2011Bythinella anianensis Bythinella austriaca Bythinella badensisBythinella bavarica
  • † Bythinella bearnensis Cossmann & Peyrot, 1918Bythinella bicarinata - synonyms: B. dunkeri, B. lalindei, B. moulinsii, B. poujolensisBythinella blidariensis Glöer, 2013Bythinella bouldouyrensis Girardi, 2015Bythinella bouloti Girardi, Bichain & Wienin, 2002Bythinella calimanica Falniowski, Szarowska & Sirbu, 2009Bythinella calquierensis Girardi & Boeters, 2015Bythinella carcasonis Boeters & Falkner, 2008Bythinella carinulataBythinella cebennensis Bythinella charpentieri Bythinella chinensis Liu & Zhang, 1979
  • † Bythinella contemta Brusina, 1897
  • † Bythinella cvijici Pavlović, 1935
  • † Bythinella cyclothyra Bythinella cylindricaBythinella dacica Grossu, 1946
  • † Bythinella dalmatica Brusina, 1897Bythinella dedovi Glöer & Georgiev, 2011Bythinella dierckingi Glöer & Georgiev, 2011Bythinella dispersa Radoman, 1976Bythinella drimica Radoman, 1976Bythinella dromensis Boeters & Falkner, 2008Bythinella elenae Glöer & Georgiev, 2011
  • † Bythinella elongata Roshka, 1973
  • † Bythinella eugenii Bythinella eurystoma Bythinella eutrepha
  • † Bythinella falloti Degrange-Touzin, 1892Bythinella falniowskii Glöer, 2013Bythinella feheri Glöer, 2013Bythinella friderici Boeters & Falkner, 2008Bythinella galerae Girardi, Bichain & Wienin, 2002Bythinella georgievi Glöer, 2013Bythinella gibbosa Bythinella gloeeri Georgiev, 2009Bythinella golemoensis Glöer & Mrkvicka, 2015Bythinella gregoi Glöer & Erőss, 2015Bythinella grossui Falniowski, Szarowska & Sirbu, 2009Bythinella guranensis Bythinella hansboetersi Glöer & Pešić, 2006Bythinella intermediaBythinella istanbulensis Yıldırım, Kebapçı & Yüce, 2015Bythinella istoka Glöer & Pešić, 2014Bythinella izvorica Glöer & Georgiev, 2011Bythinella kapelana Radoman, 1976Bythinella kazdaghensis Odabaşi & Georgiev, 2014Bythinella kleptuzica Glöer & Georgiev, 2011Bythinella lancevelei Locard, 1894Bythinella luteola Radoman, 1976Bythinella magdalenae Yıldırım, Kebapçı & Bahadır Koca, 2015Bythinella magna Radoman, 1976Bythinella major Bythinella margritae Glöer & Georgiev, 2011Bythinella marici Glöer & Pešić, 2014Bythinella markovi Glöer & Georgiev, 2009
  • † Bythinella megarensis Bukowski, 1896Bythinella melovskii Glöer & Slavevska-Stamenković, 2015Bythinella micherdzinskii Falniowski, 1980Bythinella molcsanyi H. Wagner, 1941Bythinella muranyii Glöer & Erőss, 2015Bythinella nipponica Mori, 1937Bythinella nonveilleri Glöer, 2008Bythinella occasiuncula Boeters & Falkner, 2001Bythinella opaca Bythinella pannonicaBythinella padiraciBythinella parvula Locard, 1893Bythinella pesterica Glöer, 2008
  • † Bythinella polita Bythinella pupoidesBythinella radomani Falniowski, Szarowska & Sirbu, 2009Bythinella ravnogorica Glöer & Georgiev, 2009Bythinella rhodopensis Glöer & Georgiev, 2011Bythinella rilaensis Georgiev & Glöer, 2013Bythinella robiciana
  • † Bythinella rothi Bythinella rouchi Boeters & Falkner, 2008Bythinella rouveyrolensis Girardi, 2015Bythinella rubiginosa Bythinella reyniesii - synonyms: B. compressa, B. parvulaBythinella samecana Clessin, 1911Bythinella schmidtii
  • † Bythinella scitula Brusina, 1892Bythinella serborientalis Radoman, 1976Bythinella servainiana Bythinella sirbui Glöer, 2013Bythinella slaveyae Glöer & Georgiev, 2011Bythinella smolyanica Glöer & Georgiev, 2011Bythinella srednogorica Glöer & Georgiev, 2009Bythinella stoychevae Georgiev, 2011Bythinella syntriculus Boeters & Falkner, 2008Bythinella szarowskae Glöer, 2013Bythinella taraensis Glöer & Pešić, 2010Bythinella temelkovi Georgiev & Glöer, 2014Bythinella thermophila Glöer, Varga & Mrkvicka, 2015Bythinella turca Bythinella ullaensis Boeters & Falkner, 2008Bythinella valkanovi Glöer & Georgiev, 2011Bythinella vesontianaBythinella utriculus Bythinella viridis Bythinella viseuiana Falniowski, Szarowska & Sirbu, 2009
  • † Bythinella vitrellaeformis Lörenthey, 1902Bythinella walkeri Glöer & Georgiev, 2009Bythinella wantanensis Kang, 1983Bythinella wilkei Yıldırım, Kebapçı & Bahadır Koca, 2015Bythinella wufengensis Kang, 1983Bythinella sp. 'Dufort-Lacapelette'Bythinella sp. 'Padirac'Bythinella sp. 'Rogues'Bythinella bertrandi Bernasconi, 2000Bythinella jourdei Bernasconi, 2000Bythinella pujolensis Bernasconi, 2000Bythinella rondelaudi Bernasconi, 2000Bythinella troyana Bernasconi, 2000Bythinella vimperei Bernasconi, 2000Bythinella wawrzineki Bernasconi, 2002Bythinella geisserti Boeters & Falkner, 2003