Machine learning models accurately predict clades of proteocephalidean tapeworms (Onchoproteocephalidea) based on host and biogeographical data.

Proteocephalids are a cosmopolitan and diverse group of tapeworms (Cestoda) that have colonized vertebrate hosts in freshwater and terrestrial environments. Despite the ubiquity of the group, key macroevolutionary processes that have driven the group's evolution have yet to be identified. Here, we review the phylogenetic relationships of proteocephalid tapeworms using publicly available (671) and newly generated (91) nucleotide sequences of the nuclear RNA28S and the mitochondrial MT-CO1 for 537 terminals.

Description of Colobomatus conodoni n. sp. (Cyclopoida: Philichthyidae), a New Parasitic Copepod from the Barred Grunt Conodon nobilis (Linnaeus, 1758) (Actinopterygii: Haemulidae) Off the Brazilian Coast.

Introduction: Copepods of the genus Colobomatus Hesse, 1873 are parasites associated with subcutaneous spaces of marine fish. To date, around 76 species of the genus have been described in marine ecosystems, but few species have been recorded in the South Atlantic Ocean.

Methods: One hundred and eight specimens of Co.

The metazoan parasite community of the barred grunt Conodon nobilis (Actinopterygii: Haemulidae) from the coast off Rio de Janeiro, southeastern Brazil.

The barred grunt, Conodon nobilis (Linnaeus, 1758), is one of the most important marine-estuarine fish along the Brazilian coast. The present study evaluated the parasite fauna of this haemulid fish along the Southern Atlantic coast. From September 2010 to July 2011, a total of 100 specimens of C.

New species of the genus (Nematoda: Trichostrongylina) parasitic in (Rodentia: Sigmodontinae) in the Atlantic Forest of Rio de Janeiro, Brazil.

We describe a new species of the genus (Nematoda: Trichostrongylina) in the small intestine of (Rodentia: Sigmodontinae) found in Itatiaia National Park (Parque Nacional do Itatiaia, PNI), state of Rio de Janeiro, Brazil. The new species can be distinguished between the other two species previously described by the following morphological characteristics: pattern of the rays from the caudal bursa rays in males and the spherical-shaped appendage in the female. Additionally, we provide molecular genetic data from the new species.

Effect of Hydrogen Peroxide-Based Bleaching Agents on the Color Dimensions and Surface Roughness of Different Milled Restorative Dental Materials.

Purpose: To compare the color dimensions, color discrepancies (ΔE00), and surface roughness of milled materials before and after application of a bleaching agent.

Materials And Methods: A total of 10 extracted molars were obtained. Each tooth was cut in transverse sections to create disks (3-mm thick, 10-mm diameter; control group).