Descriptions of Two New Subfamilies and a New Genus of Hagfishes (Cyclostomata: Myxinidae)
Robert L. Wisner (1999) Two new subfamilies of myxinid fishes, Paramyxininae and Quadratinae, are designated, and a new genus, Quadratus, is described. Subfamilies Myxininae and Eptatretinae are redescribed. The four subfamilies are distinguished by the numbers of gill apertures, the placement of the first (anteriormost) gill aperture relative to the first gill pouch, the length of the first efferent branchial duct relative to the last, and the linearity or non-linearity of the patterns of gill apertures. The putative taxonomic position of Paramyxine springeri is discussed.
Keywords
Myxinidae, Hagfishes, Subfamilies.
