Sphenomorphus helenae

Sphenomorphus helenae
Conservation status
	; Data Deficient (IUCN 3.1)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Squamata
Suborder:	Scinciformata
Infraorder:	Scincomorpha
Family:	Sphenomorphidae
Genus:	Sphenomorphus
Species:	S. helenae
Binomial name
	Sphenomorphus helenae; Cochran, 1927
Synonyms
	Sphenomorphus helenae; Cochran, 1927; Lygosoma helenae; — M.A. Smith, 1935; Lygosoma (Sphenomorphus) helenae; — M.A. Smith, 1937; Sphenomorphus helenae; — Chen & Lue, 1987;

Last updated October 06, 2025

Sphenomorphus helenae, also known commonly as the Notaburi forest skink, is a species of lizard in the subfamily Sphenomorphinae of the family Scincidae. The species is endemic to Thailand.^[2]

Etymology

The specific name, helenae, is in honor of American herpetologist Helen Beulah Thompson Gaige.^[3]

Geographic range

S. helenae is known only from the type locality, "Nontaburi" (= Nonthaburi), which is in central Thailand.^[1]^[2]

Habitat

The preferred natural habitat of S. helenae is unknown.^[1]

Description

S. helenae is known only from the holotype,^[2] which has a snout-to-vent length (SVL) of 2.8 cm (1.1 in), and a partially regenerated tail 3.0 cm (1.2 in) long.^[4] According to British herpetologist Malcolm Arthur Smith, the holotype is an immature specimen.^[5]

Reproduction

The mode of reproduction of S. helenae is unknown.^[2]

References

1 2 3 Cota, M.; Sumontha, M.; Panitvong, N.; Danaisawat, P.; Thaksintham, W. (2018). "Sphenomorphus helenae". IUCN Red List of Threatened Species . 2018 e.T104771572A104853725. doi: 10.2305/IUCN.UK.2018-2.RLTS.T104771572A104853725.en . Retrieved 20 November 2021.
1 2 3 4 5 Sphenomorphus helenae at the Reptarium.cz Reptile Database . Accessed 30 September 2020.
↑ Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN 978-1-4214-0135-5. (Sphenomorphus helenae, p. 119).
↑ Cochran DM (1927).
↑ Smith MA (1935). The Fauna of British India, Including Ceylon and Burma. Reptilia and Amphibia. Vol. II.—Sauria. London: Secretary of State for India in Council. (Taylor and Francis, printers). xiii + 440 pp. + Plate I + 2 maps. (Lygosoma helenae, p. 283).

Chan-ard T, Parr JWK, Nabhitabhata J (2015). A Field Guide to the Reptiles of Thailand. New York: Oxford University Press. 352 pp. ISBN 978-0-19-973649-2 (hardcover), ISBN 978-0-19-973650-8 (paperback).
Cochran DM (1927). "New Reptiles and Batrachians Collected by Dr. Hugh M. Smith in Siam". Proceedings of the Biological Society of Washington40: 179–192. (Sphenomorphus helenae, new species, pp. 183–185).
Smith MA (1937). "A Review of the Genus Lygosoma (Scincidae: Reptilia) and its Allies". Records of the Indian Museum39 (3): 213–234.

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[iucn_status_20_November_2021-1] 1 2 3 Cota, M.; Sumontha, M.; Panitvong, N.; Danaisawat, P.; Thaksintham, W. (2018). "Sphenomorphus helenae". IUCN Red List of Threatened Species . 2018 e.T104771572A104853725. doi: 10.2305/IUCN.UK.2018-2.RLTS.T104771572A104853725.en . Retrieved 20 November 2021.

[RDB-2] 1 2 3 4 5 Sphenomorphus helenae at the Reptarium.cz Reptile Database . Accessed 30 September 2020.

[3] Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN 978-1-4214-0135-5. (Sphenomorphus helenae, p. 119).

[4] Cochran DM (1927).

[5] Smith MA (1935). The Fauna of British India, Including Ceylon and Burma. Reptilia and Amphibia. Vol. II.—Sauria. London: Secretary of State for India in Council. (Taylor and Francis, printers). xiii + 440 pp. + Plate I + 2 maps. (Lygosoma helenae, p. 283).

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