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  2. Freshwater snail - Wikipedia

    en.wikipedia.org/wiki/Freshwater_snail

    The Neritimorpha are a group of primitive "prosobranch" gilled snails which have a shelly operculum.. Neritiliidae - 5 extant freshwater species [5]; Neritidae - largely confined to the tropics, also the rivers of Europe, family includes the marine "nerites". [9]

  3. Pomacea bridgesii - Wikipedia

    en.wikipedia.org/wiki/Pomacea_bridgesii

    Pomacea bridgesii, common name the spike-topped apple snail or mystery snail, is a South American species of freshwater snail with gills and an operculum, an aquatic gastropod mollusk in the family Ampullariidae. These snails were most likely introduced to the United States through the aquarium trade.

  4. Physidae - Wikipedia

    en.wikipedia.org/wiki/Physidae

    These snails are sometimes viewed as pests in aquarium tanks with fish, because the snails create waste, reproduce very often, and are very hard to remove completely. However, some aquarium owners deliberately chose to add these freshwater pond snails to their tank because the snails will eat uneaten fish food, algae and waste, as well as ...

  5. Physella acuta - Wikipedia

    en.wikipedia.org/wiki/Physella_acuta

    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 .

  6. Neritidae - Wikipedia

    en.wikipedia.org/wiki/Neritidae

    Neritidae, common name the nerites, is a taxonomic family of small to medium-sized saltwater and freshwater snails which have a gill and a distinctive operculum. [2] The family Neritidae includes marine genera such as Nerita, marine and freshwater genera such as Neritina, and freshwater and brackish water genera such as Theodoxus.

  7. Physa - Wikipedia

    en.wikipedia.org/wiki/Physa

    These small snails, like all the species in the family Physidae, have shells that are sinistral, which means that when the shell is held with the spire pointing up and the aperture facing the viewer, then the aperture is on the left-hand side. The shells of Physa species have a long and large aperture, a pointed spire, and no operculum. The ...

  8. Tylomelania - Wikipedia

    en.wikipedia.org/wiki/Tylomelania

    In species within the genus, the albumen gland is very large. [2] The pallial oviduct evolved into a uterine brood , which releases shelled juvenile snails. [ 2 ] Compared to other aquatic snails, many species of Tylomelania are known to be the few groups of snails that are not hermaphroditic but rather dioecious . [ 9 ]

  9. Vittina natalensis - Wikipedia

    en.wikipedia.org/wiki/Vittina_natalensis

    This species is a common choice of algae-eating snail among freshwater aquarists. In the aquarium trade, the striped shell of this species has caused it to be known as the tiger snail, zebra snail, or zebra nerite. (The name zebra nerite is however misleading, because there are several species of nerite that have that common name, including ...

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