We revise the large Neotropical genus Operclipygus Marseul, in the histerid tribe Exosternini (Histeridae: Histerinae). We synonymize 3 species, move 14 species from other genera, sink the genus Tribalister Horn into Operclipygus, and describe 138 species as new, bringing the total to 177 species of Operclipygus. Keys are provided for the identification of all species, and the majority of the s...

The araneid spider genus Verrucosa McCook, 1888 is revised. Five of the seven previously known species, V. arenata (Walckenaer, 1841), V. lampra Soares & Camargo, 1948, V. meridionalis (Keyserling, 1892), V. undecimvariolata (O. Pickard-Cambridge, 1889) and V. zebra (Keyserling, 1892), are redescribed and illustrated. In addition, 37 new species of Verrucosa from the Neotropical region are desc...

Twenty three new species of Exocelina Broun, 1886 from New Guinea are described herein: Exocelinabewaniensis sp. n., Exocelinabismarckensis sp. n., Exocelinacraterensis sp. n., Exocelinagorokaensis sp. n., Exocelinaherowana sp. n., Exocelinajimiensis sp. n., Exocelinakisli sp. n., Exocelinaksionseki sp. n., Exocelinalembena sp. n., Exocelinamantembu sp. n., Exocelinamichaelensis sp. n., Exoceli...

One new genus (Roznerathous gen. n.) and 31 new species of Elateridae are described: Athous szalokii sp. n. (Georgia), Agriotes balikesirensis sp. n. (Turkey), Agriotes rozneri sp. n. (Syria), Agriotes sakaryaensis sp. n. (Turkey), Cardiophorus anatolicus sp. n. (Turkey), Cardiophorus aranyos sp. n. (Afghanistan), Cardiophorus burkus sp. n. (Afghanistan), Cardiophorus dicronychoides sp. n. (Afg...

Photosynthetic eukaryotes are the product of an endosymbiotic event between a eukaryotic host and a cyanobacterium that became today's plastid. A new phylogenomic study suggests that the closest relative of plastids among extant cyanobacteria is the recently discovered freshwater-dwelling Gloeomargarita lithophora.

Twenty-eight new species of the genus Ypsiloncyphon are described from Southeast Asia. The new species described in this paper are as follows: Y. laosensis sp. n., Y. myanmarnus sp. n., Y. nomurai sp. n., Y. bifurcatus sp. n., Y. bicornutus sp. n., Y. borneensis sp. n., Y. brachytrigonium sp. n., Y. garoensis sp. n., Y. kedahensis sp. n., Y. prolongatus sp. n., Y. guamensis sp. n., Y. philippin...

A new species of caligid copepod (Siphonostomatoida), Anuretes grandis sp. n., parasitic on the painted sweetlips [Diagramma pictum (Thunberg)] in Taiwan is described. The new species is distinguished from its congeners by having: (1) free margin of cephalothorax not covering fourth pediger, (2) large genital complex longer than 2/3 of the cephalic shield, (3) no maxillary whip, (4) leg 3 with ...

A brief note was published some years ago by W. T. Morgan of the Lister Institute, London, and the writer (1932) describing the isolation from decayed woody tissues of a micro-organism which decomposes the specific polysaccharides of Shigella dysenteriae, Shiga; Shigella dysenteriae, Flexner Y; Pneumococcus Type II; and the tubercle bacillus. At the time a study of the relationship of this orga...