Captain's wood snake (''Xylophis captaini''), also known
commonly as Captain's xylophis, 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
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 ...
Pareidae. 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
India
India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...
.
Geographic range
The
holotype
A holotype (Latin: ''holotypus'') is a single physical example (or illustration) of an organism used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of s ...
of ''X. captaini'' is from
Kanam,
Kottayam district
Kottayam () is one of List of districts of Kerala, 14 districts in the States and union territories of India, Indian state of Kerala. Kottayam district comprises six municipal towns: Kottayam, Changanassery, Pala, Kerala, Pala, Erattupetta, Ettu ...
, in the state of
Kerala
Kerala ( , ) is a States and union territories of India, state on the Malabar Coast of India. It was formed on 1 November 1956, following the passage of the States Reorganisation Act, by combining Malayalam-speaking regions of the erstwhile ...
and was found in 2000. Captain's wood snake has been recorded at low altitudes on the western side of the southern part of the
Western Ghats, south of the
Palakkad Gap
Palakkad Gap or Palghat Gap is a low mountain pass in the Western Ghats between Coimbatore in the Indian state of Tamil Nadu and Palakkad in the state of Kerala. It has an average elevation of with a width of . The pass is located between the ...
.
[
]
Habitat
The preferred natural habitat
In ecology, habitat refers to the array of resources, 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 manifestation of its ...
of ''X. captaini'' 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, ...
at altitudes from sea level to , but it has also been found in disturbed areas such as plantations.
Description
A small species of snake, ''X. captaini'' does not exceed in total length (including tail).
Behavior
''X. captaini'' is nocturnal
Nocturnality is a ethology, behavior in some non-human animals characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal", versus diurnality, diurnal meaning the opposite.
Nocturnal creatur ...
, and burrows in leaf litter, humus, and soil to a depth of . The species is non-venomous.
Diet
''X. captaini'' preys predominantly on earthworms.
Reproduction
''X. captaini'' 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 ...
.[
]
Etymology
The specific name Specific name may refer to:
* in Database management systems, a system-assigned name that is unique within a particular database
In taxonomy, either of these two meanings, each with its own set of rules:
* Specific name (botany), the two-part (bino ...
, ''captaini'', and the common names, Captain's wood snake and Captain's xylophis, are in honor of Indian herpetologist
Herpetology (from Ancient Greek ἑρπετόν ''herpetón'', meaning "reptile" or "creeping animal") is a branch of zoology concerned with the study of amphibians (including frogs, salamanders, and caecilians (Gymnophiona)) and reptiles (in ...
Ashok Captain
Ashok Captain (born 4 September 1960) is an Indian herpetologist
Herpetology (from Ancient Greek ἑρπετόν ''herpetón'', meaning "reptile" or "creeping animal") is a branch of zoology concerned with the study of amphibians (including ...
for his work on Indian snakes.[ Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . (''Xylophis captaini'', p. 47).]
References
Further reading
* Deepak V, Ruane S, Gower DJ (2018). "A new subfamily of fossorial colubroid snakes from the Western Ghats of peninsular India". ''Journal of Natural History'' 52 (45–46): 2919–2934. (Xylophiinae, new subfamily).
* Palot MJ (2015). "A checklist of reptiles of Kerala, India". ''Journal of Threatened Taxa'' 7 (13): 8010–8022.
Pareidae
Snakes of Asia
Reptiles of India
Endemic fauna of the Western Ghats
Fauna of Kerala
Reptiles described in 2007
{{Snake-stub