Euparkerella

Euparkerella, sometimes known as Guanabara frogs, is a genus of frogs in the family Strabomantidae.[2][3] They are endemic to the Atlantic coastal forests in the south-eastern Brazilian states of Espírito Santo and Rio de Janeiro.[2][4] The name Euparkerella honours H. W. Parker, a herpetologist who named the type species, with the Greek prefix eu meaning true and suffix ella, a diminutive form.[5]

Euparkerella
Euparkerella brasiliensis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Strabomantidae
Subfamily: Holoadeninae
Genus: Euparkerella
Griffiths, 1959[1]
Type species
Sminthillus brasiliensis
Parker, 1926
Diversity
See text

Taxonomy

Species of Euparkerella are traditionally distinguished using morphological traits. However, these species do not align well with genetically distinct units, with the latter suggesting higher diversity than the former, especially within Euparkerella brasiliensis and Euparkerella cochranae. It remains unresolved whether the genetically distinct units qualify as different species.[4]

Description

Species of Euparkerella are small frogs, growing to 22 millimetres (0.87 in) snout–vent length at most. The digits are extremely reduced, compared to those of their larger relatives.[4] Head is narrower than the body. Differentiated tympanic membrane and tympanic annulus are absent. Dorsum is finely granular. Venter is areolate.[5]

Species

The following species are recognized in the genus Euparkerella:[2][3]

References
  1. Griffiths, I. (1959). "The phylogeny of Sminthillus limbatus and the status of the Brachycephalidae (Amphibia: Salientia)". Proceedings of the Zoological Society of London. 132 (3): 457–487. doi:10.1111/j.1469-7998.1959.tb05531.x.
  2. Frost, Darrel R. (2022). "Euparkerella Griffiths, 1959". Amphibian Species of the World: An Online Reference. Version 6.1. American Museum of Natural History. doi:10.5531/db.vz.0001. Retrieved 21 October 2022.
  3. "Strabomantidae". AmphibiaWeb. University of California, Berkeley. 2022. Retrieved 21 October 2022.
  4. Fusinatto, Luciana A.; Alexandrino, João; Haddad, Célio F. B.; Brunes, Tuliana O.; Rocha, Carlos F. D. & Sequeira, Fernando (2013). "Cryptic genetic siversity is paramount in small-bodied amphibians of the genus Euparkerella (Anura: Craugastoridae) endemic to the Brazilian Atlantic forest". PLOS ONE. 8 (11): e79504. Bibcode:2013PLoSO...879504F. doi:10.1371/journal.pone.0079504. PMC 3815154. PMID 24223956.
  5. Hedges, S. B.; Duellman, W. E. & Heinicke, M. P. (2008). "New World direct-developing frogs (Anura: Terrarana): Molecular phylogeny, classification, biogeography, and conservation" (PDF). Zootaxa. 1737: 1–182. doi:10.11646/zootaxa.1737.1.1.
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