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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.
The Snake River physa snail, scientific name Physella natricina, is a species of freshwater snail, an aquatic gastropod mollusk in the family Physidae. This species is endemic to Idaho in the United States. The Snake River physa snail Haitia natricina Taylor, 1988 is found in the middle Snake River of southern Idaho.
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.
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 ...
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 .
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 gyrina, common name the "tadpole physa", is a species of small, left-handed or sinistral, air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Physidae. Shell description
Snails in the family Physidae have shells that are sinistral, ... 1841) - Globose Physa [2] Physella gyrina (Say, 1821) Physella hendersoni (Clench, 1925)