From the N. American Pacific coast the following new kalyptorhynchian taxa are described:Cicerinabicirrata, Cicerina triangularis, Placorhynchus pacificus, Uncinorhynchus pacificus, Proschizorhynchella lingulata, Proschizorhynchella inflata, Proschizorhynchella schilkei, Schizochilus hoxholdi, Paraschizorhynchoides glandulisSchilke subsp.hopkinsi, Cheliplana californicaandCheliplana elkhornica. The taxonomy of the species is discusscd and supplementary remarks arc made on some species from other areas.