''Draco blanfordii'', commonly known as Blanford's flying dragon, Blanford’s flying lizard, or Blanford's gliding lizard, 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 ...

of "flying" lizard in the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Ideal ...

Agamidae Agamidae is a family of over 300 species of iguanian lizards indigenous to Africa, Asia, Australia, and a few in Southern Europe. Many species are commonly called dragons or dragon lizards. Overview Phylogenetically, they may be sister to the ...

. The species is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...

Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an area ...

, and is capable of gliding from tree to tree.

Geographic range

''D. blanfordii'' is found in

Bangladesh Bangladesh (}, ), officially the People's Republic of Bangladesh, is a country in South Asia. It is the eighth-most populous country in the world, with a population exceeding 165 million people in an area of . Bangladesh is among the mos ...

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's List of countries and dependencies by population, most populous country, with a Population of China, population exceeding 1.4 billion, slig ...

(SW

Yunnan Yunnan , () is a landlocked province in the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is Kunming. The province borders the ...

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 ...

Malaysia Malaysia ( ; ) is a country in Southeast Asia. The federal constitutional monarchy consists of thirteen states and three federal territories, separated by the South China Sea into two regions: Peninsular Malaysia and Borneo's East Malay ...

(West),

Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John Wells explai ...

Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is b ...

(East), and

Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making it ...

Etymology

The specific name, ''blanfordii'', is in honor of English geologist and naturalist

William Thomas Blanford William Thomas Blanford (7 October 183223 June 1905) was an English geologist and naturalist. He is best remembered as the editor of a major series on ''The Fauna of British India, Including Ceylon and Burma''. Biography Blanford was born ...

of the

Geological Survey of India The Geological Survey of India (GSI) is a scientific agency of India. It was founded in 1851, as a Government of India organization under the Ministry of Mines, one of the oldest of such organisations in the world and the second oldest survey ...

British India The provinces of India, earlier presidencies of British India and still earlier, presidency towns, were the administrative divisions of British governance on the Indian subcontinent. Collectively, they have been called British India. In one ...

Description

''D. blanfordii'' is similar to '' D. indochinensis''. However, while the

dewlap A dewlap is a longitudinal flap of skin or similar flesh that hangs beneath the lower jaw or neck of many vertebrates. More loosely, it can be various similar structures in the neck area, such as those caused by a double chin or the submandibul ...

of ''D. indochinensis'' is widest at its base, decreases in width over its entire length, and terminates in a sharp point, in contrast, the dewlap of ''D. blanfordii'' is distally expanded with a basal constriction, and terminates in a rounded distal edge. ''D. indochinensis'' also differs from ''D. blanfordii'' in the presence (in both sexes) of a thick, black transverse band that extends across the posterior

gular Gular is of or pertaining to the throat, and may more specifically refer to: * Gular scales in reptiles * Gular scute, or gular projection, in turtles and tortoises * Gular fold in lizards * Gular skin, or gular sac, in birds and some gibbons Oth ...

region from one throat lappet to the other, and in the presence of dark radial bands on the dorsal surfaces of the

patagia The patagium (plural: patagia) is a membranous body part that assists an animal in obtaining lift when gliding or flight. The structure is found in extant and extinct groups of flying and gliding animals including bats, birds, some dromaeosa ...

in both sexes rather than in females only. The head of ''D. blanfordii'' is small, and the snout is constricted, slightly longer than the diameter of the orbit. The nostril is directed upwards, perfectly vertical. The tympanum is naked, smaller than the eye-opening. The upper head-scales are unequal, keeled, with a prominent tubercle at the posterior corner of the orbit. There are nine upper labials. The male's gular appendage is longer than the head, very thin, covered with large scales. The male has a slight

nuchal The nape is the back of the neck. In technical anatomical/medical terminology, the nape is also called the nucha (from the Medieval Latin rendering of the Arabic , "spinal marrow"). The corresponding adjective is ''nuchal'', as in the term ''nu ...

fold. The

dorsal scales In snakes, the dorsal scales are the longitudinal series of plates that encircle the body, but do not include the ventral scales. Campbell JA, Lamar WW (2004). ''The Venomous Reptiles of the Western Hemisphere''. Ithaca and London: Comstock Publis ...

are equal, smooth or very feebly keeled, not larger than the ventrals. There is a series of widely separated enlarged keeled scales along the side of the back. The fore limb stretched forwards extends considerably beyond the tip of the snout; the adpressed hind limb nearly reaches the

axilla The axilla (also, armpit, underarm or oxter) is the area on the human body directly under the shoulder joint. It includes the axillary space, an anatomical space within the shoulder girdle between the arm and the thoracic cage, bounded super ...

. Colouration is grey-brown above, with small dark spots. The wing-membranes which above are marbled with dark brown, with lighter spots and lines, are beneath immaculate. The throat is unspotted, greenish, pale scarlet beneath the lateral wattles. Snout–vent length (SVL) is , and the tail is long. ''D. blanfordii'' is the largest species of the genus.

Habitat

The preferred natural

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

of ''D. blanfordii'' is dense

forest A forest is an area of land dominated by trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' ...

, at altitudes from sea level to .

Behaviour

''D. blanfordii'' is

arboreal Arboreal locomotion is the locomotion of animals in trees. In habitats in which trees are present, animals have evolved to move in them. Some animals may scale trees only occasionally, but others are exclusively arboreal. The habitats pose nu ...

and diurnal

Diet

''D. blanfordii'' preys upon ants.

Reproduction

''D. blanfordii'' is

oviparous Oviparous animals are animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive method of most fish, amphibians, most reptiles, and all pterosaurs, dinosaurs (including birds), and ...

. www.reptile-database.org.

References

External links

*http://www.ecologyasia.com/html-menu/species-list.htm {{Taxonbar, from=Q2702047 Reptiles of Bangladesh Reptiles of Southeast Asia Reptiles of Thailand blanfordii Taxa named by George Albert Boulenger Reptiles described in 1885