Synopsis of the Grenadier Fishes (Gadiformes; Teleostei) of Taiwan Author Iwamoto, Tomio Section of Ichthyology, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, CA 94118, USA; Author Nakayama, Naohide Laboratory of Marine Biology, Faculty of Science, Kochi University, 2 - 5 - 1 Akebono-cho, Kochi, 780 - 8073, Japan; Author Shao, Kwang-Tsao Research Center for Biodiversity, Academia Sinica No. 128, Sec. 2, Academia Road, Nankang, Taipei 115, Taiwan; Author Table, Hsuan-Ching Ho text Proceedings of the California Academy of Sciences 2015 2015-04-15 62 3 31 126 journal article 299670 10.5281/zenodo.11512126 522b8de7-880d-40ca-803e-aa5a3a05c5f6 0068-547X 11512126 Genus Trachonurus Günther, 1887 DISTINGUISHING FEATURES .— BR 7; origin of V well behind P base and under posterior onequarter of 1D base; V-A distance short, less than orbit diameter; broad periproct region spanning most of distance between V and A; second spinous ray of 1D smooth, rounded in cross-section, slightly longer than adjacent segmented ray; head smoothly rounded, without sharp ridges, almost fully scaled; scale patches usually present on branchiostegals; chin barbel short; body scales strongly adherent, with short, conical, relatively erect spinules; V 6 or 7; color uniformly gray to dark brownish black, fins dark, usually black. REMARKS .— At least six species, two of which are found off Taiwan . The species in this genus are closely similar and differences between them are difficult to find. The widespread distributions reported for certain species (especially T. villosus and T. sentipellis ) beg closer scrutiny.