Genus Pseudonezumia Okamura, 1970

Pseudonezumia Okamura, 1970:38–39 (type-species Pseudonezumia japonicus Okamura, 1970 by original designation).

Paracetonurus Marshall, 1973:615–616 (type-species Macrourus parvipes Smith and Radcliffe, 1912 by original designation).

DISTINGUISHING FEATURES.— BR 7 or 8; V 6, rarely 5 or 7, situated below posterior end of head; P 16–18; anus slightly removed from A; head much deeper than wide ( P. japonica) to relatively broad and deep (other spp.); sensory canals expanded, well developed; head and body almost fully scaled; body scales small, exposed field with erect awl-shaped spinules in subparallel to slightly divergent rows, reticulations on scales; suborbital ridge without modified scales; snout broad, tip and lateral angles lacking tubercles; teeth in narrow bands, somewhat enlarged in outer premaxillary and inner dentary series. No apparent light organ developed.

REMARKS.— We are treating the genus Paracetonurus Marshall, 1973 as a synonym, although this has not been adequately confirmed. Sazonov and Shcherbachev (1982:11) provided a good diagnosis and discussion of relationships of the genus (as Paracetonurus); they listed four species as belonging to the genus, including P. flagellicauda (Koefoed, 1927), P. parvipes (Smith and Radcliffe, 1912), and P. cetonuropsis (Gilbert and Hubbs, 1916), and their new one P. pusillus, but not P. japonica Okamura, 1970 . Of the five species, only one is known from Taiwan.