''Adelphicos ibarrorum'' is a

species In biology, a species is the basic unit of 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 the appropriate s ...

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 ev ...

snake Snakes are elongated, Limbless vertebrate, limbless, carnivore, carnivorous reptiles of the suborder Serpentes . Like all other Squamata, squamates, snakes are ectothermic, amniote vertebrates covered in overlapping Scale (zoology), scales. Ma ...

. It 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 elsew ...

Guatemala Guatemala ( ; ), officially the Republic of Guatemala ( es, República de Guatemala, links=no), is a country in Central America. It is bordered to the north and west by Mexico; to the northeast by Belize and the Caribbean; to the east by H ...

and only known from the highlands of south-central Guatemala in the region of its type locality near

Chichicastenango Chichicastenango, also known as Santo Tomás Chichicastenango, is a town, with a population of 71,394 (2018 census), and the municipal seat for the surrounding municipality of the same name in the El Quiché department of Guatemala. It is locate ...

. It is a fossorial snake known from pine-oak forest and forest edge at elevations of

above sea level Height above mean sea level is a measure of the vertical distance (height, elevation or altitude) of a location in reference to a historic mean sea level taken as a vertical datum. In geodesy, it is formalized as ''orthometric heights''. The comb ...

. It is threatened by deforestation for agricultural purposes. The largest known specimen and the

holotype A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several ...

of ''Adelphicos ibarrorum'' is a female measuring in length, including tail.

References

Adelphicos Snakes of Central America Reptiles of Guatemala Endemic fauna of Guatemala Reptiles described in 1988 Taxa named by Jonathan A. Campbell {{snake-stub