''Bungarus sindanus'', the Sind krait, is a

species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...

krait ''Bungarus'' is a genus of venomous elapid snakes, the kraits ("krait" is pronounced , rhyming with "kite"), found in South and Southeast Asia. The genus ''Bungarus'' has 16 species. Distribution Kraits are found in tropical Asia, from near Ira ...

, a venomous

elapid Elapidae (, commonly known as elapids ; grc, ἔλλοψ ''éllops'' "sea-fish") is a family of snakes characterized by their permanently erect fangs at the front of the mouth. Most elapids are venomous, with the exception of the genus Emydoc ...

snake Snakes are elongated, limbless, carnivorous reptiles of the suborder Serpentes . Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skulls with several more j ...

found in

India India, officially the Republic of India ( Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the ...

Iran Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkm ...

Bangladesh Bangladesh (}, ), officially the People's Republic of Bangladesh, is a country in South Asia. It is the List of countries and dependencies by population, eighth-most populous country in the world, with a population exceeding 165 million pe ...

Nepal Nepal (; ne, नेपाल ), formerly the Federal Democratic Republic of Nepal ( ne, सङ्घीय लोकतान्त्रिक गणतन्त्र नेपाल ), is a landlocked country in South Asia. It is ma ...

, and

Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ...

. Three subspecies are recognized. It can be confused with the

common krait The common krait (''Bungarus caeruleus''), also known as Bengal krait, is a species of highly venomous elapid snake of the genus '' Bungarus'' native to the Indian subcontinent. It is a member of the "Big Four" species that inflict the most sna ...

Description

The Sind krait is generally with some specimens as long as . Their most visible feature is their narrow white bands, though the bands can be either yellow or grey depending on the color variation. The young have white spots on one-third of their body instead of bands (which develop at maturity). They have an egg-shaped head with a short snout, small eyes, upper lips either yellow or white and pointed tip tail. Dorsal scales are smooth and glossy with the vertebral row enlarged and hexagonal. Dorsal scale count 19 ( 21 ) - 17 ( 19 ) - 17.

Behavior

Sind kraits are primarily

nocturnal Nocturnality is an ethology, animal behavior characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal", versus diurnality, diurnal meaning the opposite. Nocturnal creatures generally have ...

, and often (unintentionally) cross paths with humans and domestic animals. It is estimated that around 30-40% of the annually recorded snake bites within Bangladesh are from Sind kraits. Usually, people who are bitten simply don’t see the animal; its camouflage, colouring and temporarily remaining still are generally enough to protect it, lest it be so effective that they are accidentally stepped on. This is when the krait reacts in a scared manner, striking. Other instances involve a krait inadvertently showing itself, causing people to overreact. When they attempt to scare or kill the krait, they end up being bitten.

Distribution and habitat

''B. sindanus'' is found throughout Bangladesh, India, Nepal, and Pakistan. Within India, specifically, it has been recorded in the states of

Bihar Bihar (; ) is a state in eastern India. It is the 2nd largest state by population in 2019, 12th largest by area of , and 14th largest by GDP in 2021. Bihar borders Uttar Pradesh to its west, Nepal to the north, the northern part of West ...

Gujarat Gujarat (, ) is a state along the western coast of India. Its coastline of about is the longest in the country, most of which lies on the Kathiawar peninsula. Gujarat is the fifth-largest Indian state by area, covering some ; and the nin ...

Haryana Haryana (; ) is an Indian state located in the northern part of the country. It was carved out of the former state of East Punjab on 1 Nov 1966 on a linguistic basis. It is ranked 21st in terms of area, with less than 1.4% () of India's land ...

Jharkhand Jharkhand (; ; ) is a state in eastern India. The state shares its border with the states of West Bengal to the east, Chhattisgarh to the west, Uttar Pradesh to the northwest, Bihar to the north and Odisha to the south. It has an area of . ...

Madhya Pradesh Madhya Pradesh (, ; meaning 'central province') is a state in central India. Its capital city, capital is Bhopal, and the largest city is Indore, with Jabalpur, Ujjain, Gwalior, Sagar, Madhya Pradesh, Sagar, and Rewa, India, Rewa being the othe ...

, Maharashtra,

Punjab Punjab (; Punjabi: پنجاب ; ਪੰਜਾਬ ; ; also romanised as ''Panjāb'' or ''Panj-Āb'') is a geopolitical, cultural, and historical region in South Asia, specifically in the northern part of the Indian subcontinent, comprising ...

Rajasthan Rajasthan (; lit. 'Land of Kings') is a state in northern India. It covers or 10.4 per cent of India's total geographical area. It is the largest Indian state by area and the seventh largest by population. It is on India's northwestern s ...

Uttar Pradesh Uttar Pradesh (; , 'Northern Province') is a state in northern India. With over 200 million inhabitants, it is the most populated state in India as well as the most populous country subdivision in the world. It was established in 1950 ...

, and

West Bengal West Bengal (, Bengali: ''Poshchim Bongo'', , abbr. WB) is a state in the eastern portion of India. It is situated along the Bay of Bengal, along with a population of over 91 million inhabitants within an area of . West Bengal is the four ...

(

Jalpaiguri Jalpaiguri is a city in the Indian state of West Bengal. It is the headquarters of the Jalpaiguri district as well as of the Jalpaiguri division of West Bengal, covering the jurisdiction of the five districts of North Bengal. The city is loc ...

and

Midnapur Medinipur or Midnapore (Pron: med̪iːniːpur) is a city known for its history in the Indian state of West Bengal. It is the headquarters of the West Medinipur district. It is situated on the banks of the Kangsabati River (variously known as '' ...

districts). The overall geographic ranges of the subspecies are: *''Bungarus sindanus razai''

Khan Khan may refer to: *Khan (inn), from Persian, a caravanserai or resting-place for a travelling caravan * Khan (surname), including a list of people with the name *Khan (title), a royal title for a ruler in Mongol and Turkic languages and used by ...

, 1985 - northern Pakistan. *''Bungarus sindanus sindanus''

Boulenger Boulenger is a surname. Notable people with the surname include: * Benjamin Boulenger (born 1990), French footballer * Edward George Boulenger (1888–1946), British zoologist, director of aquarium at London Zoo * George Albert Boulenger (1858� ...

, 1897 - southern Pakistan, adjacent India. Type locality:

Sindh Sindh (; ; ur, , ; historically romanized as Sind) is one of the four provinces of Pakistan. Located in the southeastern region of the country, Sindh is the third-largest province of Pakistan by land area and the second-largest province ...

, West Pakistan.

Etymology

It is known as the Sindh or Sind krait after being originally discovered in the Sindh province, Pakistan. The

subspecific name In zoological nomenclature, a subspecific name is the third part of a trinomen. In zoology there is only one rank below that of species, namely " subspecies". In botanical nomenclature, there are several levels of subspecific names, such as ''v ...

''walli'' is in honour of British herpetologist Frank Wall, who named the taxon after himself, admitting that it was a "breach of ethics" to do so.Wall (1907).

References

External links