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Rivicola Fitzinger, 1833 (Invalid: junior objective synonym of Physa, with the same type species) Physa is a genus of small, left-handed or sinistral, air-breathing freshwater snails , aquatic pulmonate gastropod molluscs in the subfamily Physinae of the family Physidae .
This snail is believed to be confined to the Snake River, inhabiting areas of swift current on the undersides of large cobbles and boulder-sized rocks. In 1995, the U.S. Fish and Wildlife Service reported the known modern range of the species to be from Grandview , Idaho (ca. RM 487) to the Hagerman Reach of the Snake River (ca. RM 573).
Physa fontinalis, common name the common bladder snail, is a species of air-breathing freshwater snail, an aquatic gastropod mollusc in the family Physidae. The shells of species in the genus Physa are left-handed or sinistral .
Physella acuta is a species of small, left-handed or sinistral, air-breathing freshwater snail, an aquatic gastropod mollusk in the family Physidae. Common names include European physa , tadpole snail , bladder snail , and acute bladder snail .
Physa skinneri, common name the glass physa, is a species of freshwater snail, an aquatic gastropod mollusc in the family Physidae. Description
Enrollment in these programs protects ranchers and oil and gas from “take” of the species, which is defined by the Endangered Species Act as “to harass, harm, pursue, hunt, shoot, wound ...
Species Common name Busycotypus canaliculatus: Channeled whelk Californiconus californicus: California cone Callianax alectona: Beatic dwarf olive snail Callianax biplicata: Purple olive snail Callianax strigata: Ceratostoma foliatum: Leafy hornmouth Ilyanassa obsoleta: Eastern mud snail Kelletia kelletii: Kellet's whelk Olivella pedroana
Invasive species in California, the introduced species of fauna−animals and flora−plants that are established and have naturalized within California. Native plants and animals can become threatened endangered species from the spread of invasive species in natural habitats and/or developed areas (e.g. agriculture, transport, settlement).