Trimeresurus flavomaculatus

Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Lepidosauromorpha
Superordo: Lepidosauria
Ordo: Squamata
Subordo: Serpentes
Infraordo: Caenophidia
Superfamilia: Viperoidea

Familia: Viperidae
Subfamilia: Crotalinae
Genus: Trimeresurus
Subgenus: Trimeresurus (Parias)
Species: Trimeresurus flavomaculatus
Name

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]

Description

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

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]

Taxonomy

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

Brown, R.; Sy, E.; Reizl Jose, Juan Carlos Gonzales, Rico, E.; Ledesma, M. (2009). "Trimeresurus flavomaculatus". IUCN Red List of Threatened Species. 2009: e.T169885A6686236. doi:10.2305/IUCN.UK.2009-2.RLTS.T169885A6686236.en. Retrieved 20 November 2021.
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).
The Reptile Database. www.reptile-database.org.
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.

"Trimeresurus flavomaculatus". Integrated Taxonomic Information System. Retrieved 3 August 2007.