Two Japanese species, Ceratrimeria takaoensis (Kinoshita, 1916) and C. yasumatsui (Uchida, 1940), were redescribed based on fresh material, including that from the type localities using modern morphological criteria. The main diagnostic characters of genus are also discussed. In addition, nucleotide sequences mitochondrial cytochrome c oxidase subunit 1 16S ribosomal RNA genes specimens obtaine...
