Leptaena

Ang ***Leptaena*** kay usa ka napuo nga genus sa tunga-tunga sa gidak-on nga muragtuway nga naglungtad bisan pa nga adunay pipila ka mga espesye nga nakit-an sa mga strata.

## Mga species

**[[Leptaena acuta|L. acuta]]* (Roomusoks, 2004)
**[[Leptaena acuticuspidata|L. acuticuspidata]]* Amsden, 1958
**[[Leptaena aequalis|L. aequalis]]* Amsden, 1974
**[[Leptaena alliku|L. alliku]]* (Oraspold, 1956)
**[[Leptaena altera|L. altera]]* Rybnikova, 1966
**[[Leptaena amelia|L. amelia]]* (Havlicek, 1967)
**[[Leptaena analogaeformis|L. analogaeformis]]* Biernat, 1966
**[[Leptaena arberae|L. arberae]]* Kelly, 1967
**[[Leptaena argentina|L. argentina]]* (Thomas, 1905)
**[[Leptaena bergstroemi|L. bergstroemi]]* Cocks, 2005
**[[Leptaena borghiana|L. borghiana]]* Mergl & Massa, 1992
**[[Leptaena boyaca|L. boyaca]]* Caster, 1939
**[[Leptaena contermina|L. contermina]]* Cocks, 1968
**[[Leptaena convexa|L. convexa]]* Weller, 1914
**[[Leptaena cooperi|L. cooperi]]* Easton et al., 1958
**[[Leptaena crassorugata|L. crassorugata]]* (Rõõmusoks, 2004)
**[[Leptaena croma|L. croma]]* (Havlicek & Storch, 1990)
**[[Leptaena crypta|L.crypta]]* Opik, 1930
**[[Leptaena cryptoides|L. cryptoides]]* (Oraspold, 1956)
**[[Leptaena dejecta|L. dejecta]]* (Baarli, 1995)
**[[Leptaena delicata|L. delicata]]* Amsden, 1949 
**[[Leptaena depressa|L. depressa]]* (Sowerby, 1825)
**[[Leptaena diademata|L. diademata]]* (Williams, 1962)
**[[Leptaena electra|L. electra]]* (Havlicek, 1967)
**[[Leptaena ennessbe|L. ennessbe]]* Spjeldnaes, 1957
**[[Leptaena enucleata|L. enucleata]]* Klenina, 1984
**[[Leptaena friedrichi|L. friedrichi (Similoleptaena)]]* (Rõõmusoks, 2004)
**[[Leptaena gibbosa|L. gibbosa]]* (James, 1874)
**[[Leptaena haverfordensis|L. haverfordensis]]* Bancroft, 1949
**[[Leptaena holcrofti|L. holcrofti]]* Bassett, 1974
**[[Leptaena indigena|L. indigena]]* Spjeldnaes, 1957
**[[Leptaena infrunita|L. infrunita]]* (Williams, 1962)
**[[Leptaena ingrica|L. ingrica (Similoleptaena)]]* (Rõõmusoks, 2004)
**[[Leptaena juvenilis|L. juvenilis]]* (Öpik, 1930)
**[[Leptaena kentuckiana|L. kentuckiana]]* Pope, 1982
**[[Leptaena lappa|L. lappa]]* (Havlicek & Storch, 1990)
**[[Leptaena lappina|L. lappina]]* (Havlicek & Storch, 1990)
**[[Leptaena laterorugata|L. laterorugata (Kurnamena)]]* (Roomusoks, 1989)
**[[Leptaena lemniscata|L. lemniscata]]* (Havlicek, 1967)
**[[Leptaena limbifera|L. limbifera]]* (Havlicek, 1967)
**[[Leptaena martinensis|L. martinensis]]* Cocks, 1968
**[[Leptaena moniquensis|L. moniquensis]]* Foerste, 1924
**[[Leptaena nanaformis|L. nanaformis]]* Zhang et al., 1983
**[[Leptaena nassichuki|L. nassichuki]]* Smith, 1980 
**[[Leptaena odeon|L. odeon]]* Havlicek, 1967
**[[Leptaena oklahomensis|L. oklahomensis]]* Amsden, 1951
**[[Leptaena ordovicica|L. ordovicica]]* (Cooper, 1956)
**[[Leptaena orhor|L. orhor]]* (Havlicek & Storch, 1990)
**[[Leptaena palmrei|L. palmrei]]* (Roomusoks, 2004)
**[[Leptaena parvirugata|L. parvirugata]]* Hoel, 2005
**[[Leptaena parvissima|L. parvissima]]* Ivanovskii & Kulkov, 1974
**[[Leptaena paucirugata|L. paucirugata]]* (Roomusoks 1989)
**[[Leptaena pertenuis|L. pertenuis]]* (Rõõmusoks, 2004)
**[[Leptaena planitia|L. planitia]]* (Rõõmusoks, 2004)
**[[Leptaena poulseni|L. poulseni]]* Kelly, 1967
**[[Leptaena praequalis|L. praequalis]]* Rozman, 1977
**[[Leptaena provellerosa|L. provellerosa]]* (Havlicek & Storch, 1990)
**[[Leptaena purpurea|L. purpurea]]* Cocks, 1968
**[[Leptaena quadrata|L. quadrata]]* Bancroft, 1949
**[[Leptaena quadrilatera|L. quadrilatera]]* (Logan, 1863)
**[[Leptaena rara|L. rara]]* (Alekseeva and Erlanger, 1983) 
**[[Leptaena reedi|L. reedi]]* Cocks, 1968
**[[Leptaena rhomboidalis|L. rhomboidalis]]* (Wahlanberg, 1818)
**[[Leptaena richmondensis|L. richmondensis]]* Foerste, 1909
**[[Leptaena roomusoki|L. roomusoki]]* Cocks, 2005
**[[Leptaena rugata|L. rugata]]* (Lindström, 1861)
**[[Leptaena rugaurita|L. rugaurita]]* (Havlicek, 1967)
**[[Leptaena rugosa|L. rugosa]]* (Dalman, 1828)
**[[Leptaena rugosoides|L. rugosides]]* Oraspold, 1956
**[[Leptaena salopiensis|L. salopiensis]]* (Williams, 1963)
**[[Leptaena semiradiata|L. semiradiata]]* Sowerby, 1842
**[[Leptaena senecta|L. senecta]]* Roomusoks, 2004
**[[Leptaena sperion|L. sperion]]* Bassett, 1977
**[[Leptaena spumiferra|L. spumiferra]]* (Opik, 1930)
**[[Leptaena strandi|L. strandi]]* (Spjeldnaes, 1957)
**[[Leptaena tarwanpensis|L. tarwanpensis]]* (Rõõmusoks, 2004)
**[[Leptaena taxilla|L. taxilla]]* (Oraspold, 1965)
**[[Leptaena tenuissimestriata|L. tenuissimestriata]]* McCoy, 1852
**[[Leptaena tenuistrata|L. tenuistrata]]* Sowerby, 1839
**[[Leptaena tenuistriata|L. tenuistriata]]* (de Sowerby and Murchison, 1839)
**[[Leptaena trifidium|L. trifidium]]* (Marek and Havlíček, 1967)
**[[Leptaena trifidum|L. trifidum]]* (Marek and Havlíček, 1967)
**[[Leptaena undosa|L. undosa]]* (Rõõmusoks, 2004)
**[[Leptaena valentia|L. valentia]]* (Cocks, 1968)
**[[Leptaena valida|L. valida]]* Bancroft, 1949
**[[Leptaena veldrensis|L. veldrensis]]* Spjeldnaes, 1957
**[[Leptaena vellerosa|L. vellerosa]]* Havlicek, 1967
**[[Leptaena ventricosa|L. ventricosa]]* Williams, 1963 
**[[Leptaena zeta|L. zeta]]* Lamont, 1947
**[[Leptaena ziegleri|L. ziegleri]]* Cocks, 1968