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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. [ 2 ] These snails eat algae , diatoms and detritus.
Laurentiphysa chippuvarum Taylor 2003 - Chippewa Physa; Physa carolinae Wethington, Dillon, Wise 2009 - Carolina Physa; Physa jennessi Dall 1919 - Obtuse Physa; Physa megalochlamys Taylor 1988 - Cloaked Physa; Physa natricina Taylor 1988 - Snake River Physa; Physa sibirica Westerlund 1876 - Frigid Physa; Physa skinneri Taylor 1954 - Glass Physa
Physella osculans (Haldeman, 1841) - Cayuse Physa [2] Physella parkeri (Currier, 1881) - Broadshoulder Physa [2] Physella propinqua (Tryon, 1865) - Rocky Mountain Physa [2] Physella sayi; Physella spelunca (Turner & Clench, 1974) Physella squalida (Morelet, 1851) - Squalid Physa [2] Physella traski (I. Lea, 1864) - Sculpted Physa [2] Physella ...
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 .
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 .
Federal wildlife officials have agreed to conduct a full, year-long review to determine whether a tiny snail found only in high-desert springs near a huge lithium mine being built along the Nevada ...
The observations are restricted to Physa fontinalis, an indigenous species to areas with indigenous predatory leeches, and Haitia acuta, introduced in Germany and the Netherlands. When Physa contacts another snail, either Physa or some other kind, the reaction is a rapid twisting of the shell back and forth to dislodge the other. The muscle ...