Ansonia mcgregori

Ansonia mcgregori is a species of toad in the family Bufonidae. It is endemic to the central and western Mindanao, the Philippines.[1][2] The specific name mcgregori honors Richard Crittenden McGregor, an Australian ornithologist who collected the holotype.[3] Common names McGregor's toad, McGregori's river toad,[1] and McGregor's stream toad have been coined for it.[2][3]

Ansonia mcgregori

Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Bufonidae
Genus: Ansonia
Species:
A. mcgregori
Binomial name
Ansonia mcgregori
(Taylor, 1922)
Synonyms[2]
  • Bufo mcgregori Taylor, 1922

Description

Adult males measure 32–39 mm (1.3–1.5 in) and adult females 43–50 mm (1.7–2.0 in) in snout–vent length. The tympanum is not visible. The finger tips are rounded and bear small discs, not wider than rest of the phalanges. The toes are almost fully webbed. The hind legs have crossbars. Adult males have a subgular vocal sac.[4]

Habitat and conservation

Ansonia mcgregori is a terrestrial toad associated with cool mountain streams and rivers in lower montane and lowland forests at elevations of 300–1,700 m (980–5,580 ft) above sea level. Individuals have been found above rocks covered with mosses, on rock crevices, and on leaf litter near streams. Although it is generally restricted to undisturbed or minimally disturbed habitats, a few individuals have been found in secondary forest, plantations, small-scale agroecosystems, and in the floor of a cave surrounded by farmland–disturbed lowland dipterocarp forest mosaic. Breeding takes place in streams.[1]

This species is common in suitable habitat. It is threatened by habitat loss caused by small-scale agricultural activities, large-scale oil palm plantations, wood collection for charcoal production, and expanding human settlements. Furthermore, agricultural effluents, soil erosion, and mine tailings can impact its stream habitat. It is known to occur in several protected areas.[1]

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References
  1. IUCN SSC Amphibian Specialist Group (2018). "Ansonia mcgregori". IUCN Red List of Threatened Species. 2018: e.T54475A58477082. doi:10.2305/IUCN.UK.2018-2.RLTS.T54475A58477082.en.
  2. Frost, Darrel R. (2019). "Ansonia mcgregori (Taylor, 1922)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 3 May 2019.
  3. Beolens, Bo; Watkins, Michael & Grayson, Michael (2013). The Eponym Dictionary of Amphibians. Pelagic Publishing. p. 139. ISBN 978-1-907807-42-8.
  4. Inger, Robert F. (1960). "A review of the oriental toads of the genus Ansonia Stoliczka". Fieldiana Zoology. 39 (43): 473–503.
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