Paratapinophis

Paratapinophis praemaxillaris, known commonly as Angel's mountain keelback, Angel's stream snake, or the brown stream snake, is a species of snake in the subfamily Natricinae of the family Colubridae . The species, which is monotypic in the genus Paratapinophis, is endemic to Southeast Asia.

Paratapinophis
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Genus: Paratapinophis
Angel, 1929
Species:
P. praemaxillaris
Binomial name
Paratapinophis praemaxillaris
Angel, 1929
Synonyms[2]
  • Paratapinophis praemaxillaris
    Angel, 1929
  • Opisthotrophis praemaxillaris
    — Pope, 1935
  • Opisthotropis premaxillaris [sic]
    M.A. Smith, 1943 (ex errore)
  • Paratapinophis praemaxillaris
    — Murphy et al., 2008

Geographic range

P. praemaxillaris is found in China (Yunnan province), northern Laos, and Thailand.[1][2]

Description

Dorsally, P. praemaxillaris is brown. Ventrally, it is dirty yellowish. The dorsal scales are smooth and are in 19 rows at midbody.[3]

Reproduction

P. praemaxillaris is oviparous.[2] The cotypes are hatchlings, each with an egg-tooth and a fresh umbilical scar.[4] Each of these little snakes has a total length of 21.5 cm (8.5 in), which includes a tail 5 cm (2.0 in) long.[3]

References
  1. Chan-Ard T, Stuart B, Bain R (2012). "Paratapinophis praemaxillaris ". The IUCN Red List of Threatened Species 2012: e.T177430A1485876. https://dx.doi.org/10.2305/IUCN.UK.2012-1.RLTS.T177430A1485876.en. Downloaded on 10 October 2018.
  2. Paratapinophis praemaxillaris at the Reptarium.cz Reptile Database. Accessed 5 December 2016.
  3. Smith MA (1943). The Fauna of British India, Ceylon and Burma, Including the Whole of the Indo-Chinese Sub-region. Reptilia and Amphibia. Vol. III.—Serpentes. London: Secretary of State for India. (Taylor and Francis, printers). xii + 583 pp. ("Opisthotropis premaxillaris [sic]", p. 322).
  4. Pope CH (1935). The Reptiles of China: Turtles, Crocodilians, Snakes, Lizards. (Volume X of the Natural History of Central Asia series, edited by Chester A. Reeds). New York: American Museum of Natural History. lii + 604 pp. + Plates I-XXVII. (Opisthotropis praemaxillaris, p. 322).

Further reading
  • Angel F (1929). "Liste de reptiles et batraciens du Haut-Laos recueillis par M. Delcour. Descriptions d'un genre, de 2 espèces et d'une variété d'ophidiens ". Bulletin du Muséum national d'histoire naturelle de Paris, série 2, 1: 75-81. (Paratapinophis, new genus; P. praemaxillaris, new species). (in French).
  • Das I (2012). A Naturalist's Guide to the Snakes of South-East Asia: Malaysia, Singapore, Thailand, Myanmar, Borneo, Sumatra, Java and Bali. Oxford, England: John Beaufoy Publishing. 176 pp. ISBN 978-1906780708.
  • Murphy JC, Chan-ard T, Mekchai S, Cota M, Voris HK (2008). "The Rediscovery of Angel's Stream Snake, Paratapinophis praemaxillaris Angel, 1929 (Reptilia: Serpentes: Natricidae)". The Natural History Journal of Chulalongkorn University 8 (2): 169-183.
  • Rasmussen JB (1982). "A new record of the rare Opisthotropis praemaxillaris (Serpentes: Colubridae)". Amphibia-Reptilia 3 (2): 279-280.
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