Laevapex | |
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Genus: | Laevapex |
Type species | |
Ancylus fuscus C. B. Adams, 1841 | |
Species | |
See text |
Laevapex is a genus of small, freshwater, air-breathing limpets, aquatic pulmonate gastropod molluscs in the family Planorbidae, the ram's horn snails and their allies. [2]
The genus has a New World distribution. It is widespread throughout the eastern United States, occurring in lakes and slow-flowing rivers. [3]
These animals have a pallial lung, as do all pulmonate snails, but they also have a false gill or "pseudobranch" which can serve perfectly well as a gill when they are unable to reach the surface for air. [3]
Members of this genus are characterised by their smooth apex. [3]
Species within the genus Laevapex include: [1] [2] [4]
Walther (2008) considers North American Laevapex monotypic, collectively synonymising L. diaphanus, L. peninsulae and unidentified Laevapex sp. with L. fuscus, the type species. [3]
Ancylus is a genus of very small, freshwater, air-breathing limpets. They are aquatic pulmonate gastropod mollusks in the tribe Ancylini within the family Planorbidae, the ram's horn snails and their allies.
Basommatophora was a term that was previously used as a taxonomic informal group, a group of snails within the informal group Pulmonata, the air-breathing slugs and snails. According to the taxonomy of the Gastropoda, whenever monophyly has not been tested, or where a traditional taxon of gastropods has now been discovered to be paraphyletic or polyphyletic, the term "group" or "informal group" was used.
Latia is a genus of very small, air-breathing freshwater snails or limpets, aquatic pulmonate gastropod molluscs in the superfamily Chilinoidea.
Ancylini is a tribe of small, freshwater, air-breathing limpets, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails and their allies. This tribe used to be treated as a family; the current taxonomic placement within Planorbidae is according to the taxonomy of the Gastropoda.
Gundlachia is a genus of minute freshwater snails or limpets, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails and their allies.
Hygrophila is a taxonomic superorder of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks within the clade Panpulmonata.
Chilina is a genus of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the superfamily Chilinoidea.
Gundlachia radiata is a species of minute freshwater snail or limpet, an aquatic pulmonate gastropod mollusk or micromollusk in the family Planorbidae.
Uncancylus is a genus of small, freshwater, air-breathing limpets, aquatic pulmonate gastropod molluscs in the family Planorbidae, the ram's horn snails and their allies.
Uncancylus concentricus is a species of small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusc in the family Planorbidae, the ram's horn snails and their allies.
Anisancylus is a genus of small, freshwater, air-breathing limpets, aquatic pulmonate gastropod molluscs in the family Planorbidae, the ram's horn snails and their allies.
Anisancylus dutrae is a species of small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusc in the family Planorbidae, the ram's horn snails and their allies.
Anisancylus obliquus is a species of small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusc in the family Planorbidae, the ram's horn snails and their allies.
Uncancylus foncki is a species of small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusc in the family Planorbidae, the ram's horn snails and their allies.
Burnupia ingae is a species of minute freshwater snail or limpet, an aquatic gastropod mollusc or micromollusk that is traditionally placed in the family Planorbidae, the ram's horn snails and their allies.
Hebetancylus is a genus of small, freshwater, air-breathing limpets, aquatic pulmonate gastropod molluscs in the family Planorbidae, the ram's horn snails and their allies.
Hebetancylus moricandi is a species of small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusc in the family Planorbidae, the ram's horn snails and their allies.
Laevapex vazi is a species of small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusc or micromollusc in the family Planorbidae, the ram's horn snails and their allies.
Laevapex fuscus, the dusky ancylid, is a species of small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusc or micromollusc in the family Planorbidae, the ram's horn snails and their allies.
"Laevapex: Pictures". The Animal Diversity Web - University of Michigan.