Ricardo A. Kawashita-Ribeiro

Amphibia, Anura, Centrolenidae, Cochranella adenocheira : distribution and range extension, Brazil

Cochranella adenocheira Harvey and Nooan 2005 was described based on two specimens collected in the Amazon region of Bolivia, in the Serranía de Huanchaca, Departamento de Santa Cruz (Harvey and Nooan 2005). It is included in the Family Centrolenidae, but as Incertae sedis in regard to its genera (see Guayasmin et al. 2009). Caldwell (2009) reported the second known locality of this species and the first for Brazil, from the state of Mato Grosso (Figure 1). However, Cochranella adenocheira is not included in the Brazilian official list of species (SBH 2009; see also Frost 2009). During recent field expeditions, we collected centrolenid specimens in the southern Brazilian Amazon basin that we identified as Cochranella adenocheira (Figure 2).

Natural History of The Coral Snake Micrurus pyrrhocryptus Cope 1862 (Elapidae) from Semideciduous Forests of Western Brazil

ABSTRACT. Coral snakes in the genus Micrurus are widely distributed in the Neotropics, with more than 50 species already described in this region. They are primarily ground or leaf litter dwellers, feed on snakes or other elongate vertebrates, and tend to reproduce during the rainy season. We present data on the biology of Micrurus pyrrhocryptus from two semideciduous forests of Mato Grosso do Sul state, western Brazil. Two snake species were consumed: the dipsadid Sibynomorphus lavillai and the typhlopid Typhlops brongersmianus. Sexual dimorphism is marked in M. pyrrhocryptus, with males attaining larger sizes and having longer tails. Activity was concentrated in the wet season, when reproduction occurs. The defensive behavior in this species is similar to that displayed by other Micrurus, although less pronounced.

Reptilia, Squamata, Amphisbaenidae, Anops bilabialatus : distribution extension, meristic data, and conservation

Stimson 1972 (review in Vanzolini 1999; Gans 2005). Contrasting with the former species that is known from more than one hundred specimens from Argentina, South Brazil, and Uruguay (Vanzolini 1999), the later is rare, until now known only from eight individuals, all from two localities on the state of Mato Grosso, Brazil. Here we report on 35 additional specimens of

Squamata, Elapidae, Micrurus surinamensis (Cuvier, 1817): new records and distribution map in the state of Mato Grosso, Brazil, with notes on diet and activity period

Universidade Estadual Paulista, Instituto de Biociencias, Departamento de Parasitologia, Programa de Pos-Graduacao em Ciencias Biologicas, Distrito de Rubiao Junior s/n, CEP 186818-000, Botucatu, SP, Brazil

New records and distribution extensions of three species of Mesoclemmys Gray, 1863 (Testudines: Chelidae) in Mato Grosso state, Brazil, with observations on terrestrial movements

Distribution patterns of most of the 20 Neotropical freshwater turtles belonging to the family Chelidae are usually based on few locality records. We here report on vouchered records of three species of the chelid genus Mesoclemmys in the Brazilian state of Mato Grosso. Presence of M. vanderhaegei is confirmed for the Amazon River Basin, and M. gibba and M. raniceps are recorded in Mato Grosso for the first time.

Herpetofauna of São João da Barra Hydroelectric Plant, state of Mato Grosso, Brazil

This paper provides a checklist of the herpetofauna at the Sao Joao da Barra Hydroelectric Plant in the municipalities of Juara, Nova Monte Verde and Nova Bandeirantes in the northern portion of the state of Mato Grosso, Brazil. Representatives of 30 amphibian and 31 reptile species were obtained during an environmental impact study carried out in the study area. Three new state records and the distribution of six species are discussed, contributing to the knowledge on the poorly known transition zones between the Cerrado biome and Amazon forest in the state of Mato Grosso.

A New Species of Milk Frog of the Genus Trachycephalus tschudi (Anura, Hylidae) from the Amazonian Rainforest

Abstract:   We describe a new species of Trachycephalus from the Amazon Rain Forest, which is morphologically similar to T. resinifictrix (Goeldi). This new species is characterized by a medium body size for species in the genus (males snout–vent length [SVL] 57.9–74.3 mm, females SVL 74.4–84.9 mm); skin of the head not co-ossified with underlying dermal bones; dorsal skin texture, including that of the head, densely glandulous with several tubercles; paired vocal sac that protrudes at a posterior angle to the jaw when inflated; iris coloration pinkish-beige with a horizontal black bar and a vertical thin black line below the pupil; dorsal color pattern consisting of a wide interocular whitish-beige and a dark blotch on the middle of the dorsum joining the crossbar at the top of the dorsum, forming a “T” shape; rounded snout in dorsal view, and rounded or acuminate in profile; well-developed supratympanic fold; ulnar tubercles present, sometimes associated with ulnar fold; well-developed axillary membrane; well-developed tarsal fold; males with nonhypertrophied forearm; minimum frequencies of the advertisement call lower than 0.38 kHz; pulse rate 126.7–146.6 pulses/s; tadpole external coloration with brown reticulated blotches in the superior portion of the fin; tooth row formulae 2(2)/4. The new species, which is widely distributed in the Amazonian Forest, has been confused with the parapatric T. resinifictrix. It is a canopy treefrog that breeds in tree-holes that have accumulated rainwater.

Amphibia, Anura, Centrolenidae, Hyalinobatrachium carlesvilai Castroviejo-Fisher, Padial, Chaparro, Aguayo and de la Riva, 2009: first country record, Brazil

We present the first Brazilian record of the recently-described glassfrog Hyalinobatrachium carlesvilai Castroviejo-Fisher, Padial, Chaparro, Aguayo and de la Riva, 2009. This species, previously known in Peru and Bolivia, was collected at two localities at the municipality of Aripuana, northern state of Mato Grosso, Brazil.

A NEW SNAKE OF THE GENUS HELICOPS WAGLER, 1830 (DIPSADIDAE, XENODONTINAE) FROM BRAZIL

Abstract: We describe a new species of Helicops from the southern Amazon Basin in the state of Mato Grosso, Brazil. It differs from all congeners by having dorsal scales in 21/21/19 rows in males and 23/21/19 rows in females, subcaudal keels, a banded dorsal color pattern, and 14–19 ventral blotches. Besides presenting information on the lepidosis and morphometric variation, we also describe the hemipenis and discuss the known distribution of the new species.

Reptilia, Squamata, Amphisbaenia, Amphisbaena cuiabana (Strüssmann and Carvalho, 2001): Range extension in the state of Mato Grosso, Brazil

Amphisbaena cuiabana (Strussmann and Carvalho, 2001) is reported from three localities in Mato Grosso, Brazil. These new records extend its known distribution on 275 km northwest, 230 km west, 67 km east of its type-locality. We redefine the diagnosis of the species based on these additional specimens.