Tarodes Pocock, 1899 and Udvardya Prószyński, 1992 are redefined and redescribed. The male of T. lineatus Pocock, 1899 and the female of U. elegans Prószyński, 1992 are redescribed for comparisons. Additionally, two species of Udvardya from New Guinea, U. bellatrix sp. nov. and U. fortis sp. nov., are diagnosed, described and illustrated. Geographical distribution of the species is given.

Lithodytes lineatus (Schneider, 1799) is a small, litter-dwelling frog widely distributed in the Amazon Ecoregion and some transitional areas between Cerrado. Here we report seven new records of this species zone Amazon, Chiquitano Dry Forest Cerrado ecoregions state Mato Grosso, Brazil. These are southernmost species, expanding its distribution 320 km from nearest record Bolivia.

1. Species distribution models are static models for the distribution of a species, based on Hutchinson's niche concept. They make probabilistic predictions about the distribution of a species, but do not have a temporal interpretation. In contrast, density-structured models based on categorical abundance data make it possible to incorporate population dynamics into species distribution modelli...

The structure and organization of repetitive elements in fish genomes are still relatively poorly understood, although most of these elements are believed to be located in heterochromatic regions. Repetitive elements are considered essential in evolutionary processes as hotspots for mutations and chromosomal rearrangements, among other functions - thus providing new genomic alternatives and reg...

In this study prevalence of parasites in 118 samples (62 foxes and 56 jackals) was investigated in Ilam province of Iran, in 2010-2013, situated in the western part of the national capital of Iran. The nematodes which were cleared in lactophenol, cestodes and acanthocephalans were stained using acetocarmine and haematoxylen, respectively for identification of the parasite species. Cryptosporidi...

In this study prevalence of parasites in 118 samples (62 foxes and 56 jackals) was investigated in Ilam province of Iran, in 2010-2013, situated in the western part of the national capital of Iran. The nematodes which were cleared in lactophenol, cestodes and acanthocephalans were stained using acetocarmine and haematoxylen, respectively for identification of the parasite species. Cryptosporidi...

The potential use of Sr/Ca and Ba/Ca ratios in fish otolith, as a complement to 87Sr/86Sr study movements Prochilodus lineatus, was evaluated the La Plata Basin (South America). Water were obtained from samples collected during high low water seasons at 42 sites across Basin. Elemental isotopic measured by MC-ICP-MS, ICP-MS ion chromatography, available literature. Fish caught six different wit...

The yolk syncytial layer (YSL) has been regarded as one of the main obstacles for a successful cryopreservation of fish embryos. The purpose of this study was to identify and characterize the YSL in Prochilodus lineatus, a fish species found in southeastern Brazil and considered a very important fishery resource. Embryos were obtained through artificial breeding by hormonal induction. After fer...

Interaction within groups exploiting a common resource may be prone to cheating by selfish actions that result in disadvantages for all members of the group, including the selfish individuals. Kin selection is one mechanism by which such dilemmas can be resolved. This is because selfish acts toward relatives include the cost of lowering indirect fitness benefits that could otherwise be achieved...