''Philothamnus semivariegatus'', commonly known as the spotted bush 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 non-
venomous
Venom or zootoxin is a type of toxin produced by an animal that is actively delivered through a wound by means of a bite, sting, or similar action. The toxin is delivered through a specially evolved ''venom apparatus'', such as fangs or a ...
colubrid
Colubridae (, commonly known as colubrids , from la, coluber, 'snake') is a family of snakes. With 249 genera, it is the largest snake family. The earliest species of the family date back to the Oligocene epoch. Colubrid snakes are found on ever ...
snake,
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
Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...
.
Geographic range
''P. semivariegatus'' is distributed from
South Africa
South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring count ...
northward to
Sudan, Uganda and from
Guinea eastward to
Tanzania
Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands ...
and sited at
Nigeria
Nigeria ( ), , ig, Naìjíríyà, yo, Nàìjíríà, pcm, Naijá , ff, Naajeeriya, kcg, Naijeriya officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of G ...
.
Description
The colour is bright green with black speckles. Average snout to vent length (SVL) is .
Biology
Spotted bush snakes are mostly found in trees in bush and forest areas, where they hunt
lizard
Lizards are a widespread group of squamate reptiles, with over 7,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains. The group is paraphyletic since it excludes the snakes and Amphisbaenia al ...
s and
treefrog
A tree frog (or treefrog) is any species of frog that spends a major portion of its lifespan in trees, known as an arboreal state. Several lineages of frogs among the Neobatrachia have given rise to treefrogs, although they are not closely relat ...
s. They are excellent climbers and swimmers, have very good eyesight, and are highly alert snakes. They are not territorial, and will roam great distances in search for food. Spotted bush snakes are very common and completely harmless. They are well camouflaged, naturally very nervous, and quick to escape from any potential threat. As such, suburban sightings are rare.
In captivity
They can be very difficult to keep in captivity, being very nervous and reluctant to feed on anything but sympatric gecko species, but they are occasionally kept and bred successfully.
Reproduction
Females can lay between 3 and 12 elongate eggs every summer, and each hatchling is about in total length (including tail).
References
*
Branch, Bill. 1988. ''Field Guide to the Snakes and other Reptiles of Southern Africa''. .
Further reading
*Branch, Bill. 2004. ''Field Guide to Snakes and Other Reptiles of Southern Africa''. Sanibel Island, Florida: Ralph Curtis Books. 399 pp. . (''Philothamnus semivariegatus'', pp. 93–94 + Plates 30, 99).
*
Smith, Andrew. 1840. ''Illustrations of the Zoology of South Africa ...'' London: Lords Commissioners of Her Majesty's Treasury. (Smith, Elder and Co., printers). (''Dendrophis semivariegata'', Plates LIX, LX, LXIV, Figure 1).
{{Taxonbar, from=Q2714029
Colubrids
Reptiles of Africa
Reptiles described in 1840