Keeled Rat Snake | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Reptilia |
Order: | Squamata |
Suborder: | Serpentes |
Family: | Colubridae |
Genus: | Ptyas |
Species: | P. carinatus |
Binomial name | |
Ptyas carinatus (Günther, 1858) | |
Synonyms | |
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Ptyas carinata, commonly known as the keeled rat snake, [2] [3] is a species of colubrid snake. It is found in Indonesia, Myanmar, Malaysia, Thailand, Philippines, Cambodia, India, Vietnam, and Singapore. [4] This little known species is probably the largest extant species in the diverse colubrid family that includes just over half of living snake species. Known adult lengths of snakes of this species in Taiwan measured anywhere from 1.21 to 2.75 m (4 ft 0 in to 9 ft 0 in). [5] However, the reportedly maximum size was about 4 m (13 ft 1 in). [6] Males reportedly average slightly larger than females. [7] They are probably opportunistic predators on a variety of prey, such as rodents, though adult lizards are thought to be significant prey in Indonesia. [8]
The king cobra is a venomous snake endemic to Asia. The sole member of the genus Ophiophagus, it is not taxonomically a true cobra, despite its common name and some resemblance. With an average length of 3.18 to 4 m and a maximum record of 5.85 m (19.2 ft), it is the world's longest venomous snake. The species has diversified colouration across habitats, from black with white stripes to unbroken brownish grey. The king cobra is widely distributed albeit not commonly seen, with a range spanning from Indian Subcontinent through Southeastern Asia to Southern China, where it preys chiefly on other snakes, including those of its kind. This is the only ophidian that constructs an aboveground nest for its eggs which are purposefully and meticulously gathered and protected by the female throughout the incubation period.
The banded krait is a species of elapids endemic to Asia, from Indian Subcontinent through Southeast Asia to Southern China. With a maximum length exceeding 2 m, it is the longest krait with a distinguishable gold and black pattern. While this species is generally considered timid and docile, resembling other members of the genus, its venom is highly neurotoxic which is potentially lethal to humans. Although toxicity of the banded krait based upon murine LD50 experiments is lower than that of many other kraits, its venom yield is the highest due to its size.
Xenopeltis unicolor, commonly known as the sunbeam snake, common sunbeam snake or iridescent snake, is a non-venomous sunbeam snake species found in Southeast Asia and some regions of Indonesia. This is a primitive snake known for both its highly iridescent scales and its ability to reproduce quickly, as it is oviparous and as such can lay up to 10 eggs at a time. No subspecies are currently recognized.
Boiga cynodon, commonly known as the dog-toothed cat snake, is a nocturnal species of rear-fanged colubrid snake endemic to Asia.
Boiga dendrophila, commonly called the mangrove snake or the gold-ringed cat snake, is a species of rear-fanged venomous snake in the family Colubridae. The species is endemic to southeast Asia. It is one of the biggest cat snake species, averaging 8–9 feet in length. It is considered mildly venomous. Although moderate envenomations resulting in intense swelling have been reported, there has never been a confirmed fatality.
Ptyas korros, commonly known as the Chinese rat snake or Indo-Chinese rat snake, is a species of colubrid snake endemic to Southeast Asia.
Ptyas mucosa, commonly known as the Oriental rat snake, or Indian rat snake, is a common non-venomous species of colubrid snake found in parts of South and Southeast Asia. Dhamans are large snakes. Typical mature total length is around 1.5 to 1.95 m though some exceed 2 m. The record length for this species was 3.7 m, second only to their cousin Ptyas carinata among living colubrid snakes. Despite their large size, oriental ratsnakes are usually quite slender with even a specimen of 2 m commonly measuring 4 to 6 cm only around in diameter. Furthermore, the average weight of ratsnakes caught in Java was around 877 to 940 g, though larger males of over 2.3 m may easily weigh over 2.5 kg (5.5 lb). Their color varies from pale browns in dry regions to nearly black in moist forest areas. Rat snakes are diurnal, semi-arboreal, non-venomous, and fast-moving. Rat snakes eat a variety of prey and are frequently found in urban areas where rodents thrive.
The Asian water monitor is a large varanid lizard native to South and Southeast Asia. It is one of the most common monitor lizards in Asia, ranging from coastal northeast India, Bangladesh, Sri Lanka, mainland Southeast Asia, and southern China to Indonesian islands where it lives close to water. It is listed as Least Concern on the IUCN Red List. It was described by Laurenti in 1768 and is among the largest squamates in the world.
Elaphe carinata, the king ratsnake, is a species of Colubrid snake found in Southeast and East Asia.
Ptyas is a genus of colubrid snakes. This genus is one of several colubrid genera colloquially called "rat snakes" or "ratsnakes".
Boiga nigriceps is a species of colubrid snake from South-East Asia. They are large snakes; adults may attain a total length of 1.75 m.
The Sakishima green snake is a species of snake in the family Colubridae. The species is endemic to the Yaeyama Islands in the southern Ryukyu Islands of Japan.
Calliophis bivirgatus is a species of snake in the family Elapidae known commonly as the blue coral snake or blue Malayan coral snake. It is native to Southeast Asia.
Calamaria schlegeli is a species of snake in the family Colubridae. The species is known commonly as the red-headed reed snake, white-headed reed snake, and pink-headed reed snake. It is native to Southeast Asia, where it occurs in Brunei, Indonesia, Malaysia, and Singapore.
Ptyas fusca, commonly known as the white-bellied rat snake or brown rat snake, is a species of colubrid snake. It is found in Indonesia, Brunei, Malaysia, Thailand and Singapore.
Coelognathus flavolineatus, the black copper rat snake or yellow striped snake, is a species of colubrid snake found in Southeast Asia. This species was previously recognized in the genus Elaphe.
Rhabdophis rhodomelas, the blueneck keelback or blue-necked keelback, is a species of snake in the subfamily Natricinae of the family Colubridae. It is found in the Malay Peninsula, Borneo, and in the western parts of the Indonesian Archipelago.
Dryophiops rubescens, commonly known as the red whip snake, is a snake of the colubrid family.
Gekko horsfieldii, also known commonly as Horsfield's flying gecko, Horsfield's gliding gecko, and Horsfield's parachute gecko, is a species of lizard in the family Gekkonidae. The species is endemic to Asia.
Sibynophis melanocephalus, commonly known as the black-headed collared snake or Malayan many-toothed snake, is a nonvenomous species of colubrid snake found in Thailand, Malaysia, Indonesia, Singapore, and Vietnam.