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Triprion spatulatus Escalante.Pasos

Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Classis: Amphibia
Subclassis: Lissamphibia
Ordo: Anura

Familia: Hylidae
Subfamilia: Hylinae
Genus: Triprion
Species: Triprion spatulatus
Name

Triprion spatulatus Günther, 1882

Type locality: "near Presidio [de Mazatlán, Sinaloa], in Mexico".

Syntypes: BM 1947.2.25.79 (formerly 82.11.13.1) and 1947.2.25.80-81 (formerly 82.12.5.11-12).
Synonyms

Triprion spatulatus Günther, 1882
Diaglena spatulata — Cope, 1887
Triprion spatulatus — Günther, 1901
Diaglena reticulata Taylor, 1942
Diaglena spatulata reticulata — Duellman, 1968
Diaglena spatulata spatulata — Duellman, 1968
Triprion spatulatus reticulatus — Trueb, 1970
Triprion spatulatus spatulatus — Trueb, 1970
Hyla spatulata — Wiens, Fetzner, Parkinson, and Reeder, 2005

References

Günther, 1882, Ann. Mag. Nat. Hist., Ser. 5, 10: 279.
Wiens, Fetzner, Parkinson, and Reeder, 2005, Syst. Biol., 54: 25.
Frost, D.R. 2021. Amphibian Species of the World: an Online Reference. Version 6.1. Electronic Database accessible at https://amphibiansoftheworld.amnh.org/index.php. American Museum of Natural History, New York, USA. DOI: 10.5531/db.vz.0001 Triprion spatulatus . Accessed on 25 Apr 2008.
2007 IUCN Red List of Threatened Species IUCN: Triprion spatulatus (Least Concern) Downloaded on 25 April 2008.

Vernacular names
English: Shovel-headed Treefrog

Triprion spatulatus is a species of frog in the family Hylidae. It is endemic to the Pacific lowlands of western Mexico between the Sinaloa and Oaxaca states. It is known by several common names: shovel-headed treefrog, Mexican shovel-headed treefrog, shovel-nosed tree frog, and shovelhead treefrog.[1][2]

Taxonomy and systematics

Two subspecies that primarily differ in coloration[3] are sometimes distinguished:[2][3]

Triprion spatulatus spatulatus Günther, 1882
Triprion spatulatus reticulatus (Taylor, 1942)

Duellman (1970) allocated specimens from Sinaloa to the nominotypical subspecies and those further south and east to T. s. reticulatus.[3] However, more recent research suggests that populations east of the Isthmus of Tehuantepec represent a distinct but yet undescribed species.[1]
Description

Triprion spatulatus are large frogs, with males reaching 87 mm (3.4 in) and females 101 mm (4.0 in) in snout–vent length. The head has broad labial flanges, giving it a spoon-like shape, as attested in its specific (from Latin spatulus, "spoon") and vernacular names. The eyes are protuberant, moderately large, and anterolaterally oriented. The tympanum is visible but partially obscured by labial and/or postorbital ridges. The fingers bear large discs and some rudimentary webbing. The toes are about two-thirds webbed. The general coloration in the nominotypical subspecies is pale green or yellowish tan with green to yellow flecks. The head is somewhat darker than the back. The flanks have a yellowish cast. The venter is white apart from grayish brown flecks in the voval sac of breedings males. T. s. reticulatus has pale yellowish tan or olive-green coloration with dark brown or black reticulations and spots.[3]
Habitat and conservation

Triprion spatulatus occurs in lowland xeric and thorn-scrub forest and tropical deciduous forest at elevations up to 350 m (1,150 ft) asl. Breeding takes place in the temporary streams and ponds formed by rainfall and is therefore constrained to the rainy season. It is a common species that is not facing significant threats. Fire and changes in rainfall patterns are potential threats. Its range includes the Chamela-Cuixmala Biosphere Reserve.[1]
References

IUCN SSC Amphibian Specialist Group (2020). "Triprion spatulatus". IUCN Red List of Threatened Species. 2020: e.T56052A53962935. doi:10.2305/IUCN.UK.2020-2.RLTS.T56052A53962935.en. Retrieved 15 November 2021.
Frost, Darrel R. (2020). "Triprion spatulatus Günther, 1882". Amphibian Species of the World: an Online Reference. Version 6.1. American Museum of Natural History. doi:10.5531/db.vz.0001. Retrieved 23 October 2020.
Duellman, W. E. (1970). The hylid frogs of Middle America. Monograph of the Museum of Natural History, University of Kansas. 1. 1–753. doi:10.5962/bhl.title.2835. (Triprion spatulatus: p. 629–637)

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