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Vittina waigiensis, commonly known as the red racer nerite or the gold racer nerite, is a species of a freshwater, brackish water, or marine snail native to the Philippines and Indonesia (Sulawesi and the Maluku Islands). It belongs to the family Neritidae.
The number of eggs per egg capsule changes depending on the environment. There are 100–200 eggs in each capsule in freshwater, as opposed to 55–80 eggs in each capsule in brackish water. [ 35 ] Usually, only one egg develops, with the remaining eggs serving as nutrition for the embryo, [ 63 ] which results in a single juvenile snail ...
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.
Native to brackish tidal waters such as mangrove swamps, this snail is also classified as Vittina turrita, [5] and is sold in the freshwater aquarium trade under the common name "tiger nerite" or "tiger snail." [6] Adults may thrive in fresh water with sufficient dissolved minerals. The species has separate male and female individuals; females ...
In this family of snails, the male phase ends in December, followed by an egg maturation phase, and ends with oviposition, the act of laying eggs during May of the following year. Phylogenetic evidence for this is present based on the overall condition of the gonads especially in the degree of development of the genital ducts. [7]
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]
Clithon retropictum (Korean: 기수갈고둥, Japanese: 石蜑螺) is a species of freshwater and brackish water snail with an operculum, a nerite. It is an aquatic gastropod mollusk in the family Neritidae, the nerites.
Vitta usnea, (common name olive nerite) is a euryhaline organism living at salinities ranging from 0 to 19 ppt. It feeds on epiphytic and epibenthic algae. It ranges from north Florida on the Atlantic Coast through the coastal waters of the Gulf of Mexico and the Caribbean Sea to Trinidad (Russell, 1941).