Aphantophryne

Aphantophryne is a genus of microhylid frogs found in New Guinea and in Mindanao, the Philippines.[1] Originally described by Fry in 1917, Richard G. Zweifel considered in 1956 Aphantophryne synonymous to Cophixalus. The genus was resurrected in 1989 to house two new species in addition to the type species, A. pansa.[2] A molecular study on the subfamily Asterophryinae in 2017 revealed that two species originally included in the genus Oreophryne were more closely related to Aphantophryne than to other Oreophryne, and were consequently moved to this genus. The study also revealed a number of undescribed species.[1][3]

Aphantophryne
Aphantophryne cf. nana males from Mindanao
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Microhylidae
Subfamily: Asterophryinae
Genus: Aphantophryne
Fry, 1917
Type species
Aphantophryne pansa
Fry, 1917 "1916"
Species

5 species (see text)

Description

Aphantophryne are small frogs, the maximum snout-to-vent body length is 31 mm for A. pansa and 24 mm for A. sabini. The smallest species A. minuta has the body length of only 12 mm. Females are larger than males. The distinguishing feature of Aphantophryne when compared to other genyophrynine genera is the number of presacral vertebrae: Aphantophryne has seven while the other genera have eight.[2]

Species

The genus has five recognized species:[1]

Binomial name and authorCommon name
Aphantophryne minuta Zweifel and Parker, 1989Myola Guinea frog
Aphantophryne nana (Brown and Alcala, 1967)Camiguin cross frog, volcano cross frog
Aphantophryne pansa Fry, 1917Scratchley Guinea frog
Aphantophryne parkeri (Loveridge, 1955)Parker's cross frog
Aphantophryne sabini Zweifel and Parker, 1989Guest house Guinea frog

The true number of species is higher, considering the molecularly identified but as yet undescribed species,[1][3] and the deep divergence of lineages in Aphantophryne pansa, suggestive of a species complex rather than a single species.[3]

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References
  1. Frost, Darrel R. (2018). "Aphantophryne Fry, 1917". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 8 April 2018.
  2. Zweifel, Richard G. & Parker, F. (1989). "New species of microhylid frogs from the Owen Stanley Mountains of Papua New Guinea and resurrection of the genus Aphantophryne". American Museum Novitates. 2954: 1–20.
  3. Rivera, Julio A; Kraus, Fred; Allison, Allen & Butler, Marguerite A. (2017). "Molecular phylogenetics and dating of the problematic New Guinea microhylid frogs (Amphibia: Anura) reveals elevated speciation rates and need for taxonomic reclassification". Molecular Phylogenetics and Evolution. 112: 1–11. doi:10.1016/j.ympev.2017.04.008. PMID 28412536.
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