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Planorbidae, common name the ramshorn snails or ram's horn snails, is a family of air-breathing freshwater snails, aquatic pulmonate gastropod molluscs. Unlike most molluscs, the blood of ram's horn snails contains iron-based hemoglobin instead of copper-based hemocyanin . [ 3 ]
Ramshorn snails are hermaphroditic; [3] [4] two organisms of any sex have the ability to breed and produce offspring. Ramshorn snails lay eggs in globules, which tend to be brownish in color. The globules contain about a dozen or so eggs, though it can vary. The globules are translucent, so it is possible to visually see the new snails develop ...
Planorbella magnifica, the magnificent ramshorn, is a species of small, freshwater, air-breathing snail, a pulmonate gastropod mollusc in the family Planorbidae, the ram's horn snails. This species is endemic to the United States .
Planorbella duryi, common name the Seminole rams-horn, is a species of air-breathing freshwater snail, a pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. The species is endemic to Florida and is found frequently in home aquariums.
Planorbella oregonensis Tryon 1865 - Lamb Ramshorn; Planorbella pilsbryi Baker 1926 - File Ramshorn; Planorbella scalaris Jay 1839 - Mesa Ramshorn; Planorbella subcrenata Carpenter 1857 - Rough Ramshorn; Planorbella tenuis Dunker 1850 - Mexican Ramshorn; Planorbella traski Lea 1856 - Keeled Ramshorn; Planorbella trivolvis Say 1817 - Marsh Ramshorn
The magnificent ramshorn snail is found only in the Lower Cape Fear River basin. It was recently returned to the wild for the first time in decades. A near-extinct NC snail is back in the wild.
Shells of the freshwater snail Theodoxus danubialis Shells of the land snail species Helicina rostrata Titiscania, a shellless neritimorph. Despite their relatively low diversity, with only around 2,000 species, neritomorphs have achieved a remarkable diversity of forms, resembling a smaller-scale version of the diversity achieved by Gastropoda as a whole. [3]
The presence of Little Whirlpool Ramshorn snails in ditches surrounding the A47 Acle Straight near Great Yarmouth, Norfolk, is contributing to delays in upgrading the single-carriageway road.