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These snails eat algae, diatoms and other detritus. ... Pewter Physa, [2] type species, synonyms: Physella heterostropha (Say, 1817), Physella integra (Haldeman, 1841 ...
Snails in the family Physidae have shells that are sinistral, which means that if the shell is held with the spire pointing up, and the aperture is facing the observer, the aperture is on the left-hand side. The shells of Physella species have a long and large aperture, a pointed spire, and no operculum. The shells are thin and corneous and ...
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 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 .
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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 .
Known as Achatinella fuscobasis, the snail species had dwindled to only 11 individuals in the wild by 1991, according to officials with the Department of Land and Natural Resources in Hawaii.
Like other Vitrea snails, the new species has both male and female genitalia, researchers said. Mt. Devica crystal snails were found crawling on “wet rocks” in “a small underground cavern ...