The Mallee black-backed snake (''Suta nigriceps''), also known
commonly as the black-backed snake, the copper snake, and Mitchell's short-tailed snake, 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
venomous snake
Venomous snakes are species of the suborder Serpentes that are capable of producing venom, which they use for killing prey, for defense, and to assist with digestion of their prey. The venom is typically delivered by injection using hollow or ...
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. Idea ...
Elapidae
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 Emydoce ...
. 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 els ...
to
Australia.
[
]
Geographic range
''S. nigriceps'' is found in the Australian states of New South Wales
)
, nickname =
, image_map = New South Wales in Australia.svg
, map_caption = Location of New South Wales in AustraliaCoordinates:
, subdivision_type = Country
, subdivision_name = Australia
, established_title = Before federation
, es ...
, South Australia
South Australia (commonly abbreviated as SA) is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of , it is the fourth-largest of Australia's states and territories ...
, Victoria
Victoria most commonly refers to:
* Victoria (Australia), a state of the Commonwealth of Australia
* Victoria, British Columbia, provincial capital of British Columbia, Canada
* Victoria (mythology), Roman goddess of Victory
* Victoria, Seychelle ...
, and Western Australia
Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to ...
.[ www.reptile-database.org.]
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 ...
s of ''S. nigriceps'' are 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' ...
, savanna
A savanna or savannah is a mixed woodland-grassland (i.e. grassy woodland) ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to ...
, and shrubland
Shrubland, scrubland, scrub, brush, or bush is a plant community characterized by vegetation dominated by shrubs, often also including grasses, herbs, and geophytes. Shrubland may either occur naturally or be the result of human activity. It ...
.[
]
Description
The average snout-to-vent length (SVL) of adults of ''S. nigriceps'' is , and the length of the tail is about 12% SVL. The maximum recorded SVL is . The top of the head and the nape of the neck are grayish black, and the upper labials
In reptiles, the supralabial scales, also called upper-labials, are those scales that border the mouth opening along the upper jaw. They do not include the median scaleWright AH, Wright AA. 1957. Handbook of Snakes. Comstock Publishing Associates ...
are whitish. There is a vertebral stripe or zone, about five scale rows wide, which is also grayish black. The lateral 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 reddish brown or purplish brown. The venter is whitish.[ Storr GM (1981). "The ''Denisonia gouldii'' species-group (Serpentes, Elapidae) in Western Australia". ''Records of the Western Australian Museum'' 8 (4): 501–515. (''Denisonia nigriceps'', pp. 503–506, Figures 1–2).]
Reproduction
''S. nigriceps'' is viviparous
Among animals, viviparity is development of the embryo inside the body of the parent. This is opposed to oviparity which is a reproductive mode in which females lay developing eggs that complete their development and hatch externally from the ...
.[
]
References
Further reading
* Coventry AJ (1971). "Identification of the Black-headed Snakes (''Denisonia'') within Victoria". ''The Victorian Naturalist'' 88: 304–306. (''Denisonia brevicauda'', p. 306 + Figure 1D on p. 305).
* Günther A (1863). "Third Account of new Species of Snakes in Collection of the British Museum". ''Annals and Magazine of Natural History, Third Series'' 12: 348–365. (''Hoplocephalus nigriceps'', new species, p. 362).
* Hutchinson MN (1990). "The generic classification of the Australian terrestrial elapid snakes". ''Memoirs of the Queensland Museum'' 29 (3): 397–405. (''Suta nigriceps'').
* Mengden GA (1983). "The Taxonomy of Australian Elapid Snakes: A Review". ''Records of the Australian Museum'' 35 (5): 195–222. (''Unechis nigriceps'', new combination, pp. 216, 218).
* Mitchell FJ (1951). "The South Australian Reptile Fauna. Part 1. Ophidia". ''Records of the South Australian Museum'' 9: 545–557. (''Denisonia nigrostriata brevicauda'', new subspecies, pp. 550–551).
Snakes of Australia
Suta
Reptiles described in 1863
Taxa named by Albert Günther
Taxobox binomials not recognized by IUCN
{{Elapidae-stub