| Laevapex fuscus | |
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| Species: | L. fuscus |
| Binomial name | |
| Laevapex fuscus (C.B. Adams, 1841) | |
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. [2] [3]
L. fuscus is found throughout North America east of the Great Plains, except for mountainous areas. It has been recorded in Canada, the United States, Jamaica and Puerto Rico. [1] [4] [5]
L. fuscus was originally described as Ancylus fuscus in 1841 by Charles Baker Adams: [6]
L. fuscus generally occurs in lacustrine habitats, [7] preferring calmer waters than other ancylid genera. [4]
Simple annual (univoltine) and two-generation per year (bivoltine) life cycles have been reported in New York populations of L. fuscus. [8] The bioenergetic data collected for the species suggest that its reproductive effort is in line with expectation from adult weight, and hence that its life history strategy is undifferentiated. [9] The species is functionally protandric, despite being one of the more specialised of higher limnic pulmonate snails. [10]
L. fuscus has been observed attached to the wings or hemelytra of the water bug species Belostoma flumineum (Hemiptera: Belostomatidae). This observation suggests that belostomatids might serve as a mode of transport and a passive dispersal agent for L. fuscus and other ancylid species. [11]
Planorbidae, common name the ramshorn snails or ram's horn snails, is a family of air-breathing freshwater snails, aquatic pulmonate gastropod molluscs. Unlike most molluscs, the blood of ram's horn snails contains iron-based hemoglobin instead of copper-based hemocyanin. As a result, planorbids are able to breathe oxygen more efficiently than other molluscs. The presence of hemoglobin gives the body a reddish colour. This is especially apparent in albino animals.
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.
Siphonaria australis is a species of air-breathing sea snail or false limpet, a marine pulmonate gastropod mollusc in the family Siphonariidae, the false limpets.
Siphonaria zelandica is a species of medium-sized air-breathing sea snail or false limpet, a marine pulmonate gastropod mollusc in the family Siphonariidae, the false limpets.
Ferrissia californica is a species of small freshwater limpet, an aquatic gastropod mollusk in the family Planorbidae.
Acroloxus lacustris, or the lake limpet, is a small freshwater limpet or snail, a species of aquatic gastropod mollusk in the family Acroloxidae.
Vitrea contracta, the milky crystal snail, is a species of small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Pristilomatidae.
Siphonaria diemenensis, is a species of air-breathing sea snail or false limpet, a marine pulmonate gastropod mollusc in the family Siphonariidae, the false limpets.
Siphonaria gigas, common name the giant false limpet, is a species of air-breathing sea snail or false limpet, a marine pulmonate gastropod mollusc in the family Siphonariidae, the false limpets.
Siphonaria lessonii, is a species of air-breathing sea snail or false limpet, a marine pulmonate gastropod mollusc in the family Siphonariidae, the false limpets.
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 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 excentricus, the excentric 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 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.
| Authority control databases: National |
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