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A tadpole or polliwog (also spelled pollywog) is the larval stage in the biological life cycle of an amphibian. Most tadpoles are fully aquatic, though some species of amphibians have tadpoles that are terrestrial. Tadpoles have some fish -like features that may not be found in adult amphibians such as a lateral line, gills and swimming tails.
Jellynose fish. The jellynose fishes or tadpole fishes are the small order Ateleopodiformes. This group of ray-finned fish is monotypic, containing a single family Ateleopodidae. It has about a dozen species in four genera, but these enigmatic fishes are in need of taxonomic revision. [1]
Raniceps fuscus Krøyer, 1843. Raniceps raninus, the tadpole fish, is a species of Gadidae fish native to the northeast Atlantic Ocean around the coasts of France, Ireland, and the United Kingdom and the North Sea. This species grows to a total length of 27.5 cm (10.8 in). It is of no importance to the commercial fishery industry, though it can ...
Triops cancriformis, European tadpole shrimp or tadpole shrimp is a species of tadpole shrimp found in Europe to the Middle East and India. [2]Due to habitat destruction, many populations have recently been lost across its European range, so, the species is considered endangered in the United Kingdom and in several European countries. [2]
The tadpole-gobies [1] ( Benthophilus ), also called pugolovkas (which means "tadpole" in Russian ), are a genus of Ponto-Caspian fishes in the family Gobiidae . They are distributed in the fresh and brackish waters of basins of the Black Sea, Caspian Sea and the Sea of Azov, up to salinities of about 20 ‰. They typically live in habitats ...
Lepidurus apus. Lepidurus apus, commonly known as a tadpole shrimp, is a notostracan in the family Triopsidae, one of a lineage of shrimp-like crustaceans that have had a similar form since the Triassic period and are considered living fossils. This species is cosmopolitan, inhabiting temporary freshwater ponds over much of the world, and the ...
Stellate tadpole-goby. The stellate tadpole-goby (Benthophilus stellatus) is a species of gobiid fish native to the basin of the Sea of Azov where it occurs in the Gulf of Taganrog and limans of the eastern coast. [2] It also lives in the lower Don River up to the Tsimlyansk Reservoir. It occurs in fresh and brackish waters of depths greater ...
Notostraca. The order Notostraca, containing the single family Triopsidae, is a group of crustaceans known as tadpole shrimp[1] or shield shrimp. [2] The two genera, Triops and Lepidurus, are considered living fossils, with similar forms having existed since the end of the Devonian, around 360 million years ago.