The dull bamboo snake (''Pseudoxenodon inornatus''), also known
commonly as the Javanese false cobra, is a
species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...
of
snake
Snakes are elongated limbless reptiles of the suborder Serpentes (). Cladistically squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales much like other members of the group. Many species of snakes have s ...
in the
subfamily
In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end botanical subfamily names with "-oideae", and zo ...
Pseudoxenodontidae of the
family
Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
Colubridae
Colubridae (, commonly known as colubrids , from , 'snake') is a family of snakes. With 249 genera, it is the largest snake family. The earliest fossil species of the family date back to the Late Eocene epoch, with earlier origins suspected. C ...
. The species is
endemic
Endemism is the state of a species being found only 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 foun ...
to
Indonesia
Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania, between the Indian Ocean, Indian and Pacific Ocean, Pacific oceans. Comprising over List of islands of Indonesia, 17,000 islands, including Sumatra, ...
.
There are three recognized
subspecies
In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morpholog ...
.
Habitat
''P. inornatus'' lives in bamboo and wet
montane
Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures lapse rate, fall as elevation increases, causing the ecosystem to stratify. This stratification is ...
forest
A forest is an ecosystem characterized by a dense ecological community, community of trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, ...
s.
Description
''P. inornatus'' may attain a
snout-to-vent length (SVL) of , plus a tail length of .
[ Boulenger GA (1893). ''Catalogue of the Snakes in the British Museum (Natural History). Volume I., Containing the Families ... Colubridæ Aglyphæ, part.'' London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xiii + 448 pp. + Plates I–XXVIII. (''Pseudoxenodon inornatus'', new combination, p. 272).] Its
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 arranged in 19 rows.
[ It can spread its neck similar to a ]cobra
COBRA or Cobra, often stylized as CoBrA, was a European avant-garde art group active from 1948 to 1951. The name was coined in 1948 by Christian Dotremont from the initials of the members' home countries' capital cities: Copenhagen (Co), Brussels ...
.[
]
Reproduction
''P. inornatus'' is oviparous
Oviparous animals are animals that reproduce by depositing fertilized zygotes outside the body (i.e., by laying or spawning) in metabolically independent incubation organs known as eggs, which nurture the embryo into moving offsprings kno ...
.[
]
Subspecies
The following three subspecies, including the nominotypical subspecies
In biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics ( morphology), but that can successfully interbreed. ...
, are recognized as being valid.[
*''Pseudoxenodon inornatus inornatus''
*''Pseudoxenodon inornatus buettikoferi''
*''Pseudoxenodon inornatus jacobsonii''
]
Etymology
The subspecific name
In biology, trinomial nomenclature is the system of names for taxa below the rank of species. These names have three parts. The usage is different in zoology and botany.
In zoology
In zoological nomenclature, a trinomen (), trinominal name, or ...
, ''jacobsonii'', is in honor of Dutch naturalist Edward Richard Jacobson (1870–1944).[ Beolens B, Watkins M, ]Grayson M
Grayson may refer to:
Places Canada
* Grayson, Saskatchewan
* Rural Municipality of Grayson No. 184, Saskatchewan
United States
* Grayson, California
* Grayson, Georgia
** Grayson High School
* Grayson, Kentucky
* Grayson, Louisiana
* Gray ...
(2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . (''Pseudoxenodon inornatus jacobsoni'' ic p. 132).
References
Further reading
* Boie F (1827). "''Bemerkungen über Merrem's Versuchs eines Systems der Amphibien. 1te Lieferung : Ophidier'' ". ''Isis von Oken'' 20: 508–566. (''Xenodon inornatus'', new species, p. 541). (in German and Latin).
* Brongersma LD, Helle W (1951). "Notes on Indo-Australian snakes I." ''Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen. Series C, Biological and Medical Sciences'' 54: 3–10. (''Pseudoxenodon inornatus büttikoferi'', new subspecies).
* de Rooij N (1917). ''The Reptiles of the Indo-Australian Archipelago. II. Ophidia''. Leiden: E.J. Brill Ltd. xiv + 334 pp. (''Pseudoxenodon inornatus'', pp. 56–57, Figure 33).
* Lidth de Jeude TW (1922). "Snakes from Sumatra". ''Zoologische Mededeelingingen'' 6: 239–253. (''Pseudoxenodon jacobsonii'', new species, p. 240).
{{Taxonbar, from=Q3409923
Pseudoxenodon
Reptiles described in 1827
Reptiles of Indonesia
Endemic fauna of Indonesia
Taxa named by Friedrich Boie