| Gloydius cognatus | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Suborder: | Serpentes |
| Family: | Viperidae |
| Genus: | Gloydius |
| Species: | G. cognatus |
| Binomial name | |
| Gloydius cognatus Gloyd, 1977 | |
Gloydius cognatus, or the Alashan pitviper, is a species of Asian moccasin from North West China and Mongolia. As with all pit vipers it is venomous, and it is considered the most toxic species of Gloydius in China. [1] [2]
Considered a small viper, growing to 59 cm, the Alashan pitviper is distinguished from similar species by its specific scale counts as well as its banded pattern including 29-43 dark bands. [3]
The Alashan pitviper has been known to in habit desert or desertification grassland at elevations above 1300 m to above 3000 m, preferring temperate, rock/gravel areas with low rainfall. [1]
Gloydius cognatus is known to be viviparous. [2]
Glydius cognatus has previously been considered a subspecies of G. halys , and a synonym of G. brevicaudus and either G. strauchi or G. intermedius . [2] [4] It is now elevated to its own separate species, [5] and is theorised to have split from G. halys and G. intermedius during the pleistocene. [1]
While multiple distinct clades of G. cognatus have been recognised as of 2023, no subspecies are currently recognised. [1]
The Crotalinae, commonly known as pit vipers, or pit adders, are a subfamily of vipers found in Asia and the Americas. Like all other vipers, they are venomous. They are distinguished by the presence of a heat-sensing pit organ located between the eye and the nostril on both sides of the head. Currently, 23 genera and 155 species are recognized: These are also the only viperids found in the Americas. The groups of snakes represented here include rattlesnakes, lanceheads, and Asian pit vipers. The type genus for this subfamily is Crotalus, of which the type species is the timber rattlesnake, C. horridus.
Gloydius is a genus of pit vipers endemic to Asia, also known as Asian moccasins or Asian ground pit vipers. Named after American herpetologist Howard K. Gloyd, this genus is very similar to the North American genus Agkistrodon. 24 species are currently recognized.
Trimeresurus is a genus of pit vipers found in Asia from the Indian Subcontinent throughout Southeast Asia, China, and the Pacific Islands. Currently 44 species are recognized. Common names include Asian palm pit vipers, Asian lanceheads, and green pit vipers.
Ovophis monticola, commonly known as the Chinese mountain pit viper, is a pit viper species found in Asia. Currently, two subspecies are recognized, including the nominate subspecies described here. Recent taxonomic work suggests that most of these should be considered as separate species. IUCN has already evaluated O. m. makazayazaya as Ovophis makazayazaya.
Trimeresurus stejnegeri is a species of venomous pit viper endemic to Asia. Two subspecies are currently recognized, including the nominate subspecies described here.
Gloydius halys is a pit viper species found within a wide range that stretches across Asia, from Russia, east of the Urals, eastwards through China. Four subspecies are currently recognized, including the nominotypical form described here.
Mongolian pit viper may refer to:
Trigonocephalus halys is a taxonomic synonym that may refer to:
Ancistrodon halys intermedius is a taxonomic synonym that may refer to:
Agkistrodon halys intermedius is a taxonomic synonym that may refer to:
Protobothrops kaulbacki, commonly known as Kaulback's lance-headed pit viper or Kaulback's lance-headed pit viper, is a pit viper species endemic to Asia. There are no subspecies that are recognized as being valid.
Gloydius intermedius, or Central Asian pit viper, is a venomous species of pitviper endemic to northern Asia. Three subspecies are currently recognized, including the nominate subspecies described here.
Gloydius shedaoensis is a venomous pitviper species found only on Shedao Island in China. Although very small, this island is home to an extraordinarily large population of these snakes. No subspecies are currently recognized.
Gloydius strauchi is a species of venomous pit viper in the subfamily Crotalinae of the family Viperidae. The species is native to western China. It is a small snake with a pattern of four longitudinal stripes, although some older specimens may be a uniform black. G. strauchi may be distinguished from G. monticola by its higher midbody dorsal scale count. This species jointly holds the altitude record for pitvipers together with Crotalus triseriatus of Mexico, both being found even above the tree line at over 4,000 m (13,000 ft). No subspecies were recognized as being valid, until a recent publication re-evaluated the taxonomic statuses of populations of G. strauchi and described the eastern Tibetan populations as a new species.
Gloydius tsushimaensis, or the Tsushima Island pitviper, is a species of venomous snake in the family Viperidae. The species is endemic to Tsushima Island in Japan.
Gloydius lateralis is a species of venomous pit viper found in the Zharu Valley of Jiuzhaigou County, China. The species is active during sunny days in hot and dry areas along roadsides. The Zharu Valley is the sole known location of G. lateralis. This snake is assumed to eat small mammals like mice, based on the fur remnants found within its droppings. This species lineage is a sister taxon to G. swild, being morphologically and phylogenetically similar.
Gloydius caraganus, or the Karaganda pitviper, is a species of Asian moccasin from Uzbekistan, Turkmenistan, Tajikistan and Kyrgyzstan. The name caraganus comes from the area in which it was first discovered. As all pit vipers, it is venomous. Previously considered a subspecies of G. halys, it has recently been elevated to full species.
Gloydius changdaoensis is a species of Asian moccasin from Shandong Province, China. The name changdaoensis comes from the area it was first discovered in, Changdao County. As with all pit vipers, it is venomous. It has been named as one of the 30 most endangered viper species in 2016.
Gloydius halys boehmei, or the Böhme's pitviper, is a subspecies of Halys pitviper from Eastern Afghanistan. As with all pit vipers, it is venomous.
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