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.
Etymology The specific name, helenae, is in honor of American herpetologist Helen Beulah Thompson Gaige.Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . (Sphenomorphus helenae, p. 119).
Geographic range S. helenae is known only from the type locality, "Nontaburi" (= Nonthaburi), which is in central Thailand.
Habitat The preferred natural habitat of S. helenae is unknown.
Description S. helenae is known only from the holotype, which has a snout-to-vent length (SVL) of , and a partially regenerated tail long.Cochran DM (1927). According to British herpetologist Malcolm Arthur Smith, the holotype is an immature specimen.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).
Reproduction The mode of reproduction of S. helenae is unknown.
References
Further reading Chan-ard T, Parr JWK, Nabhitabhata J (2015). A Field Guide to the Reptiles of Thailand. New York: Oxford University Press. 352 pp. (hardcover), (paperback). Cochran DM (1927). "New Reptiles and Batrachians Collected by Dr. Hugh M. Smith in Siam". Proceedings of the Biological Society of Washington 40: 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 Museum 39 (3): 213–234.