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Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Classis: Amphibia
Subclassis: Lissamphibia
Ordo: Anura
Subordo: Neobatrachia
Familia: Microhylidae
Genus: Arcovomer
Species: A. passarellii


Arcovomer Carvalho, 1954

Type species: Arcovomer passarellii Carvalho, 1954


* Carvalho, 1954, Occas. Pap. Mus. Zool. Univ. Michigan, 555: 8.
* Amphibian Species of the World 5.1 Arcovomer access date 21 June 2008

Vernacular names
English: Passarelli's Frogs

Arcovomer is a genus of frogs in the family Microhylidae.[2] It is monotypic, being represented by the single species Arcovomer passarellii, commonly known as Passarelli's frog.[3] It is endemic to south-eastern Brazil and found in Espírito Santo, Rio de Janeiro, and São Paulo states. Frogs from Espírito Santo may represent another, undescribed species.[2] The name honours Antonio Passarelli who collected the holotype.[4]

Description and behaviour

Arcovomer passarellii is a small, slender-bodied frog. The male is about 16–20 mm (0.63–0.79 in) in snout–vent length, and the female 22–26 mm (0.87–1.02 in).[4] Its body is brown above with a distinct irregular dark pattern running the whole length of the animal.[4][5][6]

Male frogs call after sunset. The advertisement call is a sharp, short whistle. When disturbed, these frogs may jump and then assume a stiff-leg posture, possibly as a means to avoid detection by predators relying on their sight.[5]

Habitat and conservation

This species inhabits lowland primary and secondary forests. It is a ground-dwelling frog that breeds in temporary pools. Although it is a common species, it is declining in abundance, probably because of habitat loss.[1]

Potsch de Carvalho-e-Silva, S. & Peixoto, O.L. (2004). "Arcovomer passarellii". IUCN Red List of Threatened Species. 2004: e.T57681A11663112. doi:10.2305/IUCN.UK.2004.RLTS.T57681A11663112.en.
Frost, Darrel R. (2014). "Arcovomer passarellii Carvalho, 1954". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 10 April 2014.
Frost, Darrel R. (2014). "Arcovomer Carvalho, 1954". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 10 April 2014.
Carvalho, A. L. de (1954). "A preliminary synopsis of the genera of American microhylid frogs" (PDF). Occasional Papers of the Museum of Zoology, University of Michigan. 555: 1–19.
Giaretta, Ariovaldo; Martins, Lucas (2009). "Notes on the call and behavior of Arcovomer passarellii (Anura: Microhylidae)" (PDF). Herpetology Notes. 2: 91–93.
Malagoli, L.R.; T.H. Condez; C.F.B. Haddad (2012). "Arcovomer passarellii Carvalho, 1954 (Amphibia: Anura: Microhylidae): Distribution extension in São Paulo state, Brazil and geographic distribution map". Check List. 8 (3): 505–506. doi:10.15560/8.3.505. Archived from the original on 2014-04-13. Retrieved 2014-04-10.

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