Clarissa Canedo

Rio de Janeiro State University | UERJ · Departamento de Zoologia (DZ)

As many new evolutionary lineages are being discovered and formally named, sequencing topotypes when holotypes are not available becomes essential for taxonomy. This study uses a DNA-taxonomy approach to sequence new populations of the Ischnocnema verrucosa species complex (Brazilian Wart Frogs) from different locations, including, for the first ti...

The limited temporal completeness and taxonomic accuracy of species lists, made available in a traditional manner in scientific publications, has always represented a problem. These lists are invariably limited to a few taxonomic groups and do not represent up-to-date knowledge of all species and classifications. In this context, the Brazilian mega...

The limited temporal completeness and taxonomic accuracy of species lists, made available in a traditional manner in scientific publications, has always represented a problem. These lists are invariably limited to a few taxonomic groups and do not represent up-to-date knowledge of all species and classifications. In this context, the Brazilian mega...

The limited temporal completeness and taxonomic accuracy of species lists, made available in a traditional manner in scientific publications, has always represented a problem. These lists are invariably limited to a few taxonomic groups and do not represent up-to-date knowledge of all species and classifications. In this context, the Brazilian mega...

The limited temporal completeness and taxonomic accuracy of species lists, made available in a traditional manner in scientific publications, has always represented a problem. These lists are invariably limited to a few taxonomic groups and do not represent up-to-date knowledge of all species and classification. In this context, the B Brazilian meg...

The reduced temporal validity of species lists made available in a traditional manner in scientific publications has always represented a problem. These lists are invariably limited to a few taxonomic groups and do not represent the up-to-date knowledge of all species and classifications. The Catálogo Taxonômico da Fauna do Brasil (CTFB), made publ...

Catálogo Taxonômico da Fauna do Brasil: se ng the baseline knowledge on the animal diversity in Brazil

Descrição e acesso a ensaios audiovisuais disponibilizados no youtube em 2020.

The following list includes all recognized species of amphibians, known by vouchers or published information to occur within the political borders of Brazil (as of April 2021). Supra-generic taxonomy follows Frost (2021), as do most generic and species names. Other taxonomic decisions and species exclusions are explained below. All inclusions relat...

Although we celebrate the centennial of Brachycephalus garbeanus’ discovery, little progress has been done on understanding this species’ biology apart from a few morphological and ecological studies, which includes its redescription based on three specimens from the type-series, microhabitat use, sexual dimorphism in body size, and feeding habits....

“Eleutherodactylus” bilineatus has long been an enigma. Recent phylogenetic analyses have recovered this species as part of a clade including Barycholos and Noblella, but the relationship among these groups still remains contentious. In this study, we test the phylogenetic position and reassess the taxonomic status of this long‐term incertae sedis...

The genus Hylodes currently comprises 26 species of Torrent frogs, organized into four morphological taxonomic groups: Hylodes glaber, H. lateristrigatus, H. mertensi, and H. nasus groups. Hylodes lateristrigatus is the most speciose group, comprising today 20 known species. Nested in this group, a clade has been recovered based on molecular eviden...

We report the mitogenomes for five species of the Ischnocnema guentheri series, being the first described for this genus of brachycephalid frogs. We assembled mitogenomes from anchored hybrid enrichment data and recovered the 13 protein-coding genes, 22 tRNA genes, and two rRNA genes for all species. The general structure agrees with most previousl...

Understanding species distribution patterns is a central aim in ecology. Traditionally, the study of such patterns emphasizes the ecological traits of the organisms that allow them to interact with other species and with the environment. The perception that ecological differences may reflect the evolutionary history of a species has also highlighte...

We present a new phylogenetic hypothesis for Ischnocnema, a Neotropical brachycephaloid genus of ground-dwelling direct-developing frogs. We performed Bayesian inference, maximum likelihood, and maximum parsimony analyses using two nuclear (RAG1 and Tyr) and three mitochondrial genes (12S rRNA, tRNA-Val, and 16S rRNA) in a matrix comprising more th...

We describe two new species of Ischnocnema from the states of Minas Gerais and Espírito Santo, southeastern Brazil, based on morphological, bioacoustical, and molecular data. We use three mitochondrial and two nuclear genes in Bayesian inference and maximum likelihood analyses to assess their phylogenetic placement within the I. guentheri series. T...

Ischnocnema abdita is a small-sized litter frog belonging to the I. verrucosa species series and only known for mountainous areas of southeastern Espírito Santo State, Brazil, in the Municipalities of Santa Teresa (type locality), Cariacica and Mimoso do Sul. In this paper, we describe the calls and provide estimates of within-male variation of I....

Among the 25 Hylodes species described to date, only three species are known to have nuptial tubercles on the thumb, H. fredi, H. phyllodes, and H. pipilans. Careful analysis of the populations of these three species led us to discover a fourth, undescribed species from the Atlantic Forest of Serra do Mar in the State of São Paulo, southeastern Bra...

We aim to evaluate the genetic structure of an Atlantic Forest amphibian species, Scinax eurydice, testing the congruence among patterns identified and proposed by the literature for Pleistocene refugia, microrefugia, and geographic barriers to gene flow such as major rivers. Furthermore, we aim to evaluate predictions of such barriers and refugia...

K values curve for K = 1–10 (Ln Pr (X/K)), and value of DK for K = 4. (PDF)

Laboratory procedures. (PDF)

Posterior distribution of migration rate (effective number of gene copies) into each population estimated with a four-population model. (PDF)

Current effective population size posterior distributions in number of individuals for the two-population and four-population models. Transformations were performed using the geometric mean of the mutation rates (7.52 x 10−7). (PDF)

Posterior probability distributions of divergence parameter estimated by IMa2 transformed to million years. (A) Divergence estimates of the six two-population models. Each curve represents the estimated divergence time between two populations. (B) Divergence time estimates resulting from a four-population model. Each curve represents one of the thr...

Ancestral effective population size posterior distributions in number of individuals for the two-population and four-population models. Transformations were performed using the geometric mean of the mutation rates (7.52 x 10−7). (PDF)

Tissue samples of Scinax eurydice used in the account: voucher number, locality, state, coordinates, sequences, haplotype code and locality code of specimens. Abbreviations of Brazilian states: PB, Paraíba; PE, Pernambuco; AL, Alagoas; SE, Sergipe; BA, Bahia; ES, Espírito Santo; MG, Minas Gerais; RJ, Rio de Janeiro; SP, São Paulo. Collection acrony...

Gene fragment, primer, sequence of primer and reference used in this study. (PDF)

K run numbers, replicates, mean of log-likelihood and standard deviation of log-likelihood. (PDF)

Parameters of posterior distributions of population migration rate estimation for two and four population models. * P < 0.05; ** P < 0.01; *** P < 0.001. (PDF)

IMa2 Divergence Times Estimation Results. (PDF)

Posterior distribution of migration rate (effective number of gene copies) into each population estimated with a two-population model. (PDF)

We describe a new species of Hylodes from the Atlantic forest of Serra do Japi, Município de Jundiaí, State of São Paulo, Brazil. The new species belongs to the Hylodes lateristrigatus group, characterized by light oblique lateral stripes. It is diagnosed by small size; thumbs without nuptial excrescences; relatively smooth dorsal surfaces; interoc...

The taxonomic and biogeographic affinities of Strabomantis aramunha from the Campos Rupestres of Brazil are intriguing. A unique skull morphology of females suggest affinities with the broad-headed eleutherodactylines of Northwestern South America in the genus Strabomantis. Male and juvenile morphology nonetheless suggest S. aramunha could be relat...

The taxonomic and biogeographic affinities of Strabomantis aramunha from the Campos Rupestres of Brazil are intriguing. A unique skull morphology of females suggest affinities with the broad-headed eleutherodactylines of Northwestern South America in the genus Strabomantis. Male and juvenile morphology nonetheless suggest S. aramunha could be relat...

Ischnocnema oea (Heyer, 1984) is one of the 10 species recognized within the I. guentheri series (Canedo & Haddad 2012) . Within this series, the advertisement call is known for: I. gualtheri (Heyer 1984); I. guentheri (Heyer 1984, Heyer 1990, Kwet & Sole 2005, and Gehara et al. 2013); I. henselii (Kwet & Sole 2005, and Gehara et al. 2013); I. izec...

Here we describe a new species of the Ischnocnema parva species series from the Parque Estadual do Desengano, in the northern part of the State of Rio de Janeiro, Brazil. We use morphology and mtDNA sequences to allocate the new species into the I. parva species series. The new species is closely related to I. parva genetically and morphologically,...

Many species of tropical amphibians are restricted to very small ranges, and this microendemism coupled with ongoing habitat loss and susceptibility to emerging pathogens imperils the long-term persistence of these species. Incomplete taxonomic and distributional knowledge may obscure conservation assessment, particularly in putatively widespread s...

We describe a new species of Ischnocnema from the municipality of Arcos, in the karst region of the upper Rio São Francisco basin, State of Minas Gerais, Brazil. The new species is diagnosed by the possession of a W-shaped mark on the back, at the level of the shoulder, with one tubercle at each posterior point, red iris in life, and moderate-sized...

We present a phylogenetic hypothesis of the anuran clade Terrarana based on partial sequences of nuclear (Tyr and RAG1) and mitochondrial (12S, tRNA-Val, and 16S) genes, testing the monophyly of Ischnocnema and its species series. We performed maximum parsimony, maximum likelihood, and Bayesian inference analyses on 364 terminals: 11 outgroup termi...

We describe a new species of Ischnocnema from Santa Teresa, in the Atlantic Rainforest of the State of Espírito Santo, Brazil. Ischnocnema abdita sp. nov. is a member of the Ischnocnema lactea species series; it differs from other Ischnocnema mainly by presenting small size (adult male SVL 15.7 ±0.49 mm; range 15.0–16.8 mm); small discs on fingers...

Field activities in several localities within the basin of the Doce River, state of Minas Gerais, Brazil, resulted in the collection of a new Ischnocnema that we assign to the I. verrucosa species series. The new species resembles I. verrucosa and I. octavioi by its possession of small digital discs, short legs, conspicuously tuberculate dorsal sur...

New records of Elachistocleis piauiensis, a poorly known species of microhylid, from São Luís, State of Maranhão, allowed us to record the advertisement call. The advertisement call consists of a single periodic pulse train with harmonic structure. The new geographic record extends the known distribution by about 290 km West of Parnaíba, State of P...

We describe a new species of Torrent Frog, genus Hylodes, from southern and southeastern Brazil. The new species is assigned to the Hylodes nasus species group and is characterized by large size, robust body, distinctly granular dorsolateral surfaces, absence of light dorsolateral stripes, moderate-sized fringe on the outer margin of toe V, and dis...

We analyzed variation among Hylodes with nuptial tubercles using morphometrics, vocalization, and external morphology. We identified three species: Hylodes phyllodes from the Serra do Mar, State of Sao Paulo, and southern portion of the State of Rio de Janeiro; a new species from Ilha Grande, municipality of Angra dos Reis; and a new species from t...

The tadpole of Itapotihyla langsdorffii is described and illustrated. Morphological data are compared with available information on tadpoles of casque-headed frogs occurring in the Atlantic Rainforest (genera Aparasphenodon and Tra-chycephalus), and also with Osteocephalus. The ontogenetic shift in tooth row formula and the great similarity on tad-...

The tadpole of Itapotihyla langsdorffii is described and illustrated. Morphological data are compared with available information on tadpoles of casque-headed frogs occurring in the Atlantic Rainforest (genera Aparasphenodon and Trachycephalus), and also with Osteocephalus. The ontogenetic shift in tooth row formula and the great similarity on tadpo...

The tadpole of Itapotihyla langsdorffii is described and illustrated. Morphological data are compared with available information on tadpoles of casque-headed frogs occurring in the Atlantic Rainforest (genera Aparasphenodon and Trachycephalus), and also with Osteocephalus. The ontogenetic shift in tooth row formula and the great similarity on tadpo...

The taxonomic status of two leptodactylid frog genera is reevaluated. Ischnocnema Reinhardt and Lütken, 1862 is considered a junior synonym of Eleutherodactylus Duméril and Bibron, and the combination E. verrucosus (Reinhardt and Lütken, 1862) is proposed. Oreobates Jiménez-de-la- Espada, 1872 is revalidated, and the combinations Oreobates quixensi...

The taxonomic status of two leptodactylid frog genera is reevaluated. Ischnocnema Reinhardt and Lütken, 1862 is considered a junior synonym of Eleutherodactylus Duméril and Bibron, and the combination E. verrucosus (Reinhardt and Lütken, 1862) is proposed. Oreobates Jiménez-de-la-Espada, 1872 is revalidated, and the combinations Oreobates quixensis...

We describe a new species of Cluasmocleis from the municipality of Una, in the Atlantic Rainforest of southern Bahia, northeastern Brazil. The new species is the smallest member of the genus and is characterized by having an ovoid body; a truncate snout in dorsal view, rounded snout in profile; no webbing on hands and feet; fingers lacking disks, t...

Herein is described a new species of leptodactylid frog from Pedra Azul, Municipality of Domingos Martins, State of Espírito Santo, southeastern Brazil. The new species is a member of the genus Megaelosia, and is characterized by large size; fold of fifth toe not reaching outer metatarsal tubercle; snout rounded in dorsal view and slightly protrudi...