Common names: purple-red earth snake.

Teretrurus is a monotypic

Monotypic

In biology, a monotypic taxon is a taxonomic group with only one biological type. The term's usage differs slightly between botany and zoology. The term monotypic has a separate use in conservation biology, monotypic habitat, regarding species habitat conversion eliminating biodiversity and...

 genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 created for the non-venomous shield tail snake species

Species

In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

, T. sanguineus, found in southern India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

. No subspecies

Subspecies

Subspecies in biological classification, is either a taxonomic rank subordinate to species, ora taxonomic unit in that rank . A subspecies cannot be recognized in isolation: a species will either be recognized as having no subspecies at all or two or more, never just one...

 are currently recognized.

Geographic range

Found in southern India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

 in Wynaad

Wayanad District

Wayanad District in the north-east of Kerala, India, was formed on November 1, 1980 as the 12th district by carving out areas from Kozhikode and Kannur districts. Kalpetta is the district headquarters as well as the only municipal town in the district. The region was known as Mayakshetra in the...

, Travancore

Travancore

Kingdom of Travancore was a former Hindu feudal kingdom and Indian Princely State with its capital at Padmanabhapuram or Trivandrum ruled by the Travancore Royal Family. The Kingdom of Travancore comprised most of modern day southern Kerala, Kanyakumari district, and the southernmost parts of...

 (in Nalumukku at 1,350 m elevation and Oothu at 1,300 m), the Manimuthar Hills (in the Western Ghats

Western Ghats

The Western Ghats, Western Ghauts or the Sahyādri is a mountain range along the western side of India. It runs north to south along the western edge of the Deccan Plateau, and separates the plateau from a narrow coastal plain along the Arabian Sea. The Western Ghats block rainfall to the Deccan...

 of the Tinnevelly

Tirunelveli

Tirunelveli , also known as Nellai , and historically as Tinnevelly, is a city in the Indian state of Tamil Nadu. It is the headquarters of the Tirunelveli District and the sixth biggest city in Tamil Nadu...

 district) and Nyamakad (Western Ghats of the Kerala Munar Hills at 2,200 m). The type locality given is "Anamallay forests; 4,000 feet elevation."