Una nueva especie de Proceratophrys (Leptodactylidae) del nordeste de Argentina

Barrio, Alfonso del; Barrio, Isabel T. Mercadal de

doi:10.1163/156853893x00156

Cited by 15 publications

(9 citation statements)

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“…The sexes of the preserved animals were identified by making an incision in the posterior ventrolateral portion of the abdomen with the aim of inspecting their sexual structures: ovaries or testicles ( Heyer, 2005 ). The ontogenetic classification adopted herein for the metamorphosed animals follows Izecksohn & Peixoto (1980 , 1981) and Mercadal de Barrio & Barrio (1993) . The individuals considered as juveniles were those with cloacal-rostrum lengths ≤25 mm; subadult lengths were from 26 to 35 mm, whereas adults had lengths ≥36 mm.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The genus has been revised several times due to taxonomic ambiguities, and the validity of some species has been questioned ( Barrio & Barrio, 1993 ; Dias et al, 2013 ; Kwet & Faivovich, 2001 ; Lynch, 1971 ). A total of 42 Proceratophrys species are currently recognized ( Frost, 2021 ), distributed in different biomes and morphoclimactic dominions (such as the Amazon, Caatinga, Cerrado, Chaco, Atlantic Forest and Pampas) ( Barrio & Barrio, 1993 ; Giaretta, Bernarde & Kokubum, 2000 ; Izecksohn et al, 1998 ; Martins & Giaretta, 2011 ). Although Proceratophrys cristiceps has been considerably discussed during the last decade, its proposed taxonomy still arouses doubts ( Cruz, Nunes & Juncá, 2012 ; Martins & Giaretta, 2013 ), and the distribution suggested by Junior et al (2012) and Mângia et al (2020) contains somewhat dubious and questionable records—largely reflecting that some are syntopic with other species in the goyana group, or that they were encountered in unusual biome for that species.…”

Section: Introductionmentioning

confidence: 99%

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Polymorphism in a Neotropical toad species: ontogenetic, populational and geographic approaches to chromatic variation inProceratophrys cristiceps(Müller, 1883) (Amphibia, Anura, Odontophrynidae)

Vieira

Oliveira

Vieira

et al. 2022

PeerJ

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Quantifying variability is important for understanding how evolution operates in polymorphic species such as those of the genus Proceratophrys Miranda-Ribeiro, 1920, which is widely distributed in South America. P. cristiceps distribution is limited to the Caatinga biome in Brazil. We examined its chromatic variation from a populational perspective, looking at different phenetic polymorphism levels and probable chromotypic association by applying statistical and GIS tools that could facilitate future taxonomic research regarding this and other species. We characterized P. cristiceps colour patterns and re-evaluated its geographic variation, highlighting potential consequences for the taxonomy of the genus. Our results revealed six principle chromotypes whose frequencies varied among sex and ontogenetic classes. Phenotypic expression appeared to respect defined proportions and evidenced selective value for the species. We conclude that individual variation, together with typological traditionalism may overestimate the polymorphic magnitude at the population level and cause taxonomic inflation. Our data support the usefulness of P. cristiceps as a model for microevolutionary studies.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Polymorphism in a Neotropical toad species: ontogenetic, populational and geographic approaches to chromatic variation inProceratophrys cristiceps(Müller, 1883) (Amphibia, Anura, Odontophrynidae)

Vieira

Oliveira

Vieira

et al. 2022

PeerJ

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“…Mercadal de Barrio & Barrio (1993), descrevendo Proceratophrys avelinoi, apresentaram breve históri-co sobre estudos de taxonomia envolvendo o gênero Proceratophrys, incluindo as espécies com apêndices palpebrais. Izecksohn et al (1998), em sua revisão do complexo de Proceratophrys com apêndice rostral, definiram alguns caracteres morfológicos aplicáveis ao gênero e apresentaram novas diagnoses para P. appendiculata, P. melanopogon, P. laticeps e P. moehringi, além das descrições das novas espécies, P. subguttata, para o norte e nordeste de Santa Catarina, e P. phyllostomus, para a região serrana do Espírito Santo.…”

Section: Mm): Vistas Dorsal (A) E Ventral (B) Museum Comparative Zoounclassified

“…Estas espécies estão agrupadas em complexos e grupos apenas com base em similaridade morfológica, sem que o monofiletismo tenha sido testado, ou não se encaixam em nenhum agrupamento, permanecendo isoladas por apresentarem características peculiares. Assim, o complexo boiei reúne P. boiei (Wied-Neuwied, 1824), P. fryi (Günther, 1873) e P. paviotii Cruz, Prado & Izecksohn, 2005; o complexo appendiculata (sensu Izecksohn et al, 1998) reúne P. appendiculata (Günther, 1873), P. melanopogon (Miranda-Ribeiro, 1926), P. laticeps , P. moehringi Weygoldt & Peixoto, 1985, P. subguttata Izecksohn, Cruz & Peixoto, 1998 e P. phyllostomus Izecksohn, Cruz & Peixoto, 1998; o grupo cristiceps (sensu Giaretta et al, 2000) reúne P. cristiceps (Müller, 1883), P. goyana (MirandaRibeiro, 1937), P. cururu Eterovick & Sazima, 1998 e P. concavitympanum Giaretta, Bernarde & Kokubum, 2000; e o grupo bigibbosa (sensu Kwet & Faivovich, 2001) reúne P. bigibbosa (Peters, 1872), P. avelinoi Mercadal de Barrio & Barrio, 1993, P. palustris Giaretta & Sazima, 1993 e P. brauni Kwet & Faivovich, 2001. A espécie P. schirchi (Miranda-Ribeiro, 1937) encontra-se isolada, não fazendo parte de qualquer agrupamento do gênero.…”

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