Two new species of two genera of the family Ancorabolidae, Ceratonotus elongatussp. n. and Dendropsyllus californiensissp. n., found at 1642 m and 1759 m depth, respectively, in the Southern Trough of Guaymas Basin, are described. Ceratonotus elongatussp. n. was attributed to that genus by a series of character states of which the lack of dendroid dorsal processes on the P6-bearing somite and t...

Information about invertebrates in the low-flow water bodies of northeastern Siberia is far from complete. In particular, little known crustaceans—one main components meiobenthic and zooplanktonic communities. An open question which environmental factors significantly affect crustaceans different taxonomic ecological groups? Based on data collected zooplankton meiobenthos tundra ponds southern ...