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Testes size in leptodactylid frogs and occurrence of multimale spawning in the genus Leptodactylus in Brazil
(2003-06-01)
Although rare, some anurans show multimale spawning. Herein we present data on testes mass relative to body mass for 11 leptodactylids and report multimale spawning in Leptodactylus chaquensis and Leptodactylus podicipinus. ...
Phylogenetic analysis and redescription of the genus Henochilus (Characiformes: Characidae)
(2004-08-20)
Henochilus, a characiform genus endemic to eastern Brazil is reviewed. A single species, Henochilus wheatlandii, from the Rio Doce and possibly the Rio Mucuri in the states of Minas Gerais and Espirito Santo is recognized ...
Ecological data on road killed Amphisbaena alba linnaeus, 1758 (Squamata, Amphisbaenidae) in southeast Brazil
(2011-03-01)
Vehicles running over vertebrates has been an increasing challenge to the local conservation of some herpetofauna. The Amphisbaenidae are fossorial reptiles which are poorly known ecologically. Biological and natural history ...
New species of Phrynohyas from Atlantic rain forest of southeastern Brazil (Anura, Hylidae)
(2003-06-23)
A new species of hylid frog is described from south of the State of São Paulo, southeastern Brazil in Atlantic rain forest. The new species is a member of the genus Phrynohyas and is characterized by snout rounded in dorsal ...
A long-term study of a small-mammal assemblage in the central chilean matorral
(Brigham Young University, Department of Zoology, 2008)
Pyramiodontherium Rovereto (Xenarthra, Tardigrada, Megatheriinae) from the Early Pliocene of San Fernando, Catamarca Province, Argentina
(Asociación Paleontológica Argentina, 2015-12)
A tibia-fibula referred to Pyramiodontherium Rovereto (Xenarthra, Tardigrada, Megatheriinae) from the Zanclean Stage (Early Pliocene) of San Fernando, Catamarca Province, Argentina is described.
Description of a new reproductive mode in Leptodactylus (Anura, Leptodactylidae), with a review of the reproductive specialization toward terrestriality in the genus
(2002-12-31)
The genus Leptodactylus provides an example among anurans in which there is an evident tendency toward terrestrial reproduction. Herein we describe a new reproductive mode for the frog Leptodactylus podicipinus, a member ...
Variabilidade clínica na determinação da dose tóxica oral em intoxicação experimental por fluoroacetato de sódio em gatos
(2006-12-01)
The sodium monofluoroacetate (FAC) or compound 1080 is a potent rodenticide used for a rodents and vertebrate pest control. It was prohibited in many countries because of its high toxicity, but in Brazil exist evidences ...
Reproductive cycle, ovarian development, and vertebrate-type steroids profile in the freshwater prawn Macrobrachium rosenbergii
(2007-05-01)
This study is intended to characterize the ovarian development and hemolymph vertebrate-type steroids concentration during the reproductive cycle of the freshwater prawn, Macrobrachium rosenbergii. A five-stage classification ...
Trophic eggs in the foam nests of Leptodactylus labyrinthicus (Anura, Leptodactylidae): An experimental approach
(2005-10-01)
The South American pepper frog, Leptodactylus labyrinthicus, is a large species that lays eggs in foam nests in holes dug out of the banks of different bodies of water. Recently, it was reported that only 6-10% of eggs are ...