Trimeresurus flavomaculatus

Trimeresurus flavomaculatus (Philippine pit viper)[4] is a venomous pit viper species endemic to the Philippines. Two subspecies are currently recognized, including the nominate subspecies described here.[5]

Trimeresurus flavomaculatus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Viperidae
Genus: Trimeresurus
T. flavomaculatus
Binomial name
Trimeresurus flavomaculatus
(Gray, 1842)
  • Megaera flavomaculatus Gray, 1842
  • Megaera ornata Gray, 1842
  • Megaera variegata Gray, 1842
  • Parias flavomaculatus
    – Gray, 1849
  • Parias ornata – Gray, 1849
  • Parias variegata – Gray, 1849
  • Trimeresurus flavomaculatus Günther, 1879
  • Trimeresurus Schadenbergi Fischer, 1885
  • Lachesis flavomaculatus
    Boulenger, 1896
  • Trimeresurus flavomaculatus flavomaculatus – Leviton, 1961[2]
  • Parias flavomaculatus
    – Malhotra & Thorpe, 2004
  • Trimeresurus (Parias) flavomaculatus
    – David et al., 2011[3]


According to Leviton (1964), the scalation includes 21 rows of dorsal scales at midbody, 170–178/175–184 ventral scales in males/females, 62–71/58–63 subcaudal scales in males/females, and 9–11 supralabial scales of which the 3rd is the largest. Toriba and Sawai (1990) give 167–179/172–184 ventral scales in males/females, 56–70/53–63 subcaudal scales in males/females, and 9–10/9–12 supralabial scales in males/females.[4]

Geographic range

Found on the Philippine islands of Agutayan, Batan, Camiguin, Catanduanes, Dinagat, Jolo, Leyte, Luzon, Mindanao, Mindoro, Negros, and Polillo. The type locality given is "Philippine Islands". Leviton (1964) proposed that this be restricted to "Luzon Island".[2]


Subspecies[5] Taxon author[5] Common name Geographic range
T. f. flavomaculatus (Gray, 1842) Philippine pit viper[4] Philippine islands of Agutayan, Bohol, Camiguin, Catanduanes, Dinagat, Jolo, Leyte, Luzon, Mindanao, Mindoro, Negros and Panay.[4]
T. f. halieus Griffin, 1910 The Philippines on the island of Polillo.[2]


Gumprecht (2001, 2002) relegates T. f. halieus to synonymy and elevates T. f. mcgregori to a full species.[4]

See also


  2. McDiarmid RW, Campbell JA, Touré T. 1999. Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1. Herpetologists' League. 511 pp. ISBN 1-893777-00-6 (series). ISBN 1-893777-01-4 (volume).
  3. The Reptile Database.
  4. Gumprecht A, Tillack F, Orlov NL, Captain A, Ryabov S. 2004. Asian Pit vipers. GeitjeBooks. Berlin. 1st Edition. 368 pp. ISBN 3-937975-00-4.
  5. "Trimeresurus flavomaculatus". Integrated Taxonomic Information System. Retrieved 3 August 2007.

Further reading

  • Gray, J.E. 1842. Synopsis of the species of Rattle-Snakes, or Family of CROTALIDAE. Zoological Miscellany 2: 47–51. ("Magæra flavomaculatus", p. 49.)
  • Leviton, A.E. 1964. Contributions to a review of Philippine snakes, V. The snakes of the genus Trimeresurus. Philippine Journal of Science 93: 251–276.
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