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The checkered keelback (Fowlea piscator), also known commonly as the Asiatic water snake, is a common species in the subfamily Natricinae of the family Colubridae. The species is endemic to Asia . It is non-venomous.
Rhabdophis tigrinus, also known commonly as the tiger keelback, [2] yamakagashi, or kkotbaem, is a species of venomous snake in the subfamily Natricinae of the family Colubridae. The species is native to East Asia and Southeast Asia. Many sources, though not ITIS, [3] recognize one subspecies, Rhabdophis tigrinus formosanus of Taiwan. [2] [4]
The silhouette is scaled to 5.21 metres (17.1 ft) which was the longest measured and published in a study by Jesús Antonio Rivas that measured hundreds of anacondas. [2] There are reports of longer anacondas, but these reports have been questioned. [3] [4] [5] • The reticulated python is the longest extant snake.
There are no subspecies that are recognised as being valid. [3] Its common names are the Southern stiletto snake , [ 4 ] Bibron's stiletto snake , [ 4 ] Side-stabbing snake ; [ 4 ] previously it was known [ 4 ] as Bibron's burrowing asp, [ 5 ] Bibron's mole viper, [ 6 ] and the mole adder.
Sunbeam snake (Xenopeltis unicolor) Scolecophidia 3 families Family Common Names Example Species Example Photo Anomalepidae Taylor, 1939: Dawn blind snakes: Dawn blind snake (Liotyphlops beui) Leptotyphlopidae Stejneger, 1892: Slender blind snakes: Texas blind snake (Leptotyphlops dulcis) Typhlopidae Merrem, 1820: Blind snakes
Early in snake evolution, the Hox gene expression in the axial skeleton responsible for the development of the thorax became dominant. As a result, the vertebrae anterior to the hindlimb buds (when present) all have the same thoracic-like identity (except from the atlas, axis, and 1–3 neck vertebrae). In other words, most of a snake's ...
The physiology of underwater diving is the physiological adaptations to diving of air-breathing vertebrates that have returned to the ocean from terrestrial lineages. They are a diverse group that include sea snakes, sea turtles, the marine iguana, saltwater crocodiles, penguins, pinnipeds, cetaceans, sea otters, manatees and dugongs.
Clelia clelia is a large snake. Adults may attain a snout-to-vent length (SVL) of 2.1 m (6.9 ft). Dorsally, adults are uniform black, gray, or olive-gray. Ventrally, adults are yellowish white. Juveniles are pale brown or red, with a black head and a yellow collar. [6]