Eryx conicus | |
---|---|
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Reptilia |
Order: | Squamata |
Suborder: | Serpentes |
Family: | Boidae |
Genus: | Eryx |
Species: | E. conicus |
Binomial name | |
Eryx conicus (Schneider, 1801) | |
Synonyms [2] | |
|
Eryx conicus is a species of non-venomous snake in the subfamily Erycinae of the family Boidae. The species is native to southern Asia. No subspecies are recognised as being valid. [4]
Adults of E. conicus may attain a total length of 3 feet 3 inches (99 cm), which includes a tail 3 inches (76 mm) long.
The anterior maxillary and mandibular teeth are longer than the posterior. The head is covered with small scales. The eye is small with a vertical pupil. The dorsal scales are small and keeled. The tail is pointed, not or but very slightly prehensile. [5]
The rostral scale is twice as broad as long, slightly prominent, without an angular horizontal edge. The top of the head is covered with small obtusely keeled scales, except for the nasals and internasals which are enlarged. Interorbitals: 8 to 10. Circumorbitals: 10 to 15. The eye is separated from the labials by one or two rows of scales. Supralabial scales: 12 to 14. Dorsal scales tubercularly keeled, in 40 to 49 rows. Ventral scales: 162-186. The anal scale is single. Subcaudals: 17-24. [5]
The anterior dorsal scales are only feebly keeled, but these keels increase in size posteriorly to the point that they become so heavily keeled that it can make a squirming specimen really painful to handle. This also makes it look as if the front and rear ends belong to markedly different animals. [6]
Dorsally, the color pattern consists of a broad zigzag band or a series of dark brown blotches on a yellowish or brownish grey ground color. The belly is uniform white. [5]
In India it can be mistaken at first glance for either the Indian python (Python molurus) or the deadly Russell's viper ( Daboia russelii).
E. conicus is active at dusk and at night. [7]
E. conicus preys upon birds and small mammals, which it kills by constricting. [7]
E. conicus is found in India south of about 30°N latitude, Nepal, Bangladesh and in the northern arid region of Sri Lanka. The type locality given is "India orientali ". [2]
The preferred habitat of E. conicus is sandy tracts of central and southern India, the Punjab, Kachchh, and Sind.[ citation needed ]
The rough-scaled sand boa's color pattern frequently resembles that of the highly venomous Russell's viper, which some herpetologists believe is a case of Batesian mimicry. [8]
E. conicus is viviparous. [9]
Echis carinatus, known as the saw-scaled viper, Indian saw-scaled viper, little Indian viper, and by other common names, is a viper species found in parts of the Middle East and Central Asia, and especially the Indian subcontinent. It is the smallest member of the "big four" Indian snakes that are responsible for causing the most snakebite cases and deaths, due to various factors including their frequent occurrence in highly populated regions, and their inconspicuous nature. Like all vipers, the species is venomous. Two subspecies are currently recognized, including the nominate subspecies described here.
The Calabar python is a species of non-venomous snake in the family Boidae. The species is endemic to West and Central Africa. It is the only species in its genus.
Hypnale is a genus of pit vipers endemic to Sri Lanka and southwestern India. Three monotypic species are currently recognized. All members have more or less upturned snouts that produce a hump-nosed effect.
Macrovipera lebetinus, known as the blunt-nosed viper, Lebetine viper, Levant viper, and by other common names, is a viper species found in North Africa, much of the Middle East, and as far east as Kashmir. Like all other vipers, it is venomous. Five subspecies are currently recognized, including the nominate race described here.
Protobothrops jerdonii, also known commonly as Jerdon's pit viper, the yellow-speckled pit viper, and the oriental pit viper, is a species of venomous snake in the subfamily Crotalinae of the family Viperidae. The species is native to India, Nepal, Myanmar, China, and Vietnam. Three subspecies are recognized, including the nominate subspecies described here.
Protobothrops mucrosquamatus is a pit viper species endemic to Asia. Common names include: brown-spotted pit viper, Taiwanese habu and pointed-scaled pit viper. No subspecies are currently recognized. The species was first described by Theodore Cantor in 1839.
Trimeresurus erythrurus, commonly known as the red-tailed bamboo pitviper, redtail bamboo pit viper, and redtail pit viper is a venomous pit viper species found in South Asia and Myanmar. No subspecies are currently recognized.
Craspedocephalus gramineus, known as the bamboo pit viper, Indian green pit viper, or common green pit viper, is a venomous pit viper species found in the southern and north eastern parts of India. No subspecies are currently recognized.
Craspedocephalus macrolepis, commonly known as the large-scaled pit viper, is a venomous pitviper species endemic to the Southern Western Ghats of South India. No subspecies are currently recognized.
Eryx johnii is a species of nonvenomous snake in the subfamily Erycinae of the family Boidae. The species is native to Iran, Pakistan, and India. There are no subspecies which are recognized as being valid.
Uropeltis maculata, also known commonly as the spotted earth snake and the spotted shieldtail, is a species of nonvenomous snake in the family Uropeltidae. The species is endemic to southern India. There are no subspecies that are recognized as being valid.
Eryx is a genus of nonvenomous snakes, commonly known as Old World sand boas, in the subfamily Erycinae of the family Boidae. Species of the genus are found in southeastern Europe, northern Africa, the Middle East, and southwestern Asia. Thirteen species are recognized as being valid.
Bitis peringueyi, also known as the Peringuey's adder, Peringuey's desert adder or desert sidewinding adder, is a viper species found in Namibia and southern Angola. No subspecies are currently recognized.
Eryx elegans is a boa species endemic to western Central Asia. Like all other boas, it is not venomous. No subspecies are recognized.
Eryx colubrinus, the Egyptian or Kenyan sand boa, is a species of snake in the family Boidae. The species is endemic to Northern and Eastern Africa. Three subspecies are recognized.
Candoia carinata, known commonly as the Pacific ground boa, Pacific keel-scaled boa, or Indonesian tree boa, is a species of snake in the family Boidae.
Chilabothrus fordii, also known commonly as Ford's boa and the Haitian ground boa, is a species of snake in the family Boidae. There are three recognized subspecies.
Eryx jaculus, known commonly as the javelin sand boa, is a species of snake in the Boidae family. It is the type species of the genus Eryx.
Eryx jayakari, known commonly as the Arabian sand boa or Jayakar's sand boa, is a species of snake in the family Boidae. The species is endemic to the Arabian Peninsula and Iran where it spends the day buried in the sand.
Eryx muelleri, known commonly as Müller's sand boa or the Saharan sand boa, is a species of snake in the family Boidae. The species is endemic to Africa. They are kept fairly regularly in the pet industry due to their docile nature and easy care.