Based on the examination of types and additional materials, the morphology of Pternoscirtapulchripes Uvarov, 1925 and Flatovertex species were reviewed. As a result of our study, the genus Flatovertex Zheng, 1981 was synonymized with the genus Pternoscirta Saussure, 1884, the species Flatovertex cyaneitibialis Zhang & Han, 2010 was synonymized with Pternoscirta caliginosa (Haan, 1842), Flatover...

the pollution of aquatic ecosystems may affect natural reproduction of fish populations by decreasing the fertilization efficiency. among the various sources of pollution, heavy metals are important group, being found in both freshwater and marine environment. the present study investigated changes of sperm characteristics of caspimyzon wagneri when exposed to manganese (mn). spermatozoids were...

The dorsal gland secretions of captive-reared male and female Chacoan peccaries (Catagonus wagneri) were analyzed by gas chromatography-mass spectrometry. C8-C19 carboxylic acids, squalene, cholesterol, cholestanol, and cholest-7-en-3-ol were present in both males and females. Heptylbenzene, C14-C18 methyl esters, and an isomer of springene were observed in males. C15-C19 aldehydes were observe...

The present study aimed to investigate effects of the heavy metal Cd on the sperm morphological indices of Caspimyzon wagneri. The sperm were exposed to 0.01, 0.1, 1, 10, 100 and 1000 mg.L‑1 Cd for three minutes, three and 36 hours. The sperms exposed to Cd showed an increase in the length, width and surface of the head, flagella degradation and slightly flagella breakage.  With increase of Cd ...

This second part of the revision of the Argentine species of Ora Clark, 1865 provides detailed redescriptions, habitus photos, illustrations of male and female genitalia for eight species, an identification key and updated distributions for all the species. A lectotype is hereby designated for Ora bruchi Pic, 1928. Scirtes brevenotatus v. mediolineatus Pic, 1928 and S. brevenotatus wagneri Pic,...

Aspidimorpha (Aspidimorpha) wagneri sp. nov. is described from Uganda. This species belongs to the nominotypical subgenus, together with several African species that are closely related to A. mutata Boheman, 1854. Its relative position within the genus is discussed.

The genus Rhinanthus L. is complex, containing many taxonomically unresolved taxa. In this paper we studied genetic variation and species relationships in 15 populations of six Rhinanthus species from three sections. For this purpose, we developed new microsatellite primers for R. osiliensis and used them to investigate genetic variation in two narrow endemics (R. osiliensis, R. javorkae) and i...

In this study, the venom extract of five viper species (Vipera xanthina, Vipera ammodytes, Vipera kaznakovi, Vipera wagneri and Vipera lebetina) collected from various regions of Turkey was subjected to polyacrylamide disc electrophoresis. No pressure was applied to the venom glands to provide venom extract. Important differences were detected among the electrophoretic patterns of venom protein...

—The systematics of lampreys was investigated using complete mitochondrial cytochrome b sequences from all genera and nearly all recognized species. The families Geotriidae and Petromyzontidae are monophyletic, but the family Mordaciidae was resolved as two divergent lineages at the base of the tree. Within Petromyzontidae, the nonparasitic Lethenteron sp. S and Okkelbergia aepyptera were recog...