Bathylagus

Bathylagus is a genus of deep-sea smelts, some species of which are noted for having stylophthalmine larvae.

Species
The seven recognized, extant species in this genus are:
 * Bathylagus andriashevi Kobyliansky, 1986
 * Bathylagus antarcticus Günther, 1878 (Antarctic deepsea smelt)
 * Bathylagus euryops Goode & T. H. Bean, 1896 (goiter blacksmelt)
 * Bathylagus gracilis Lönnberg, 1905
 * Bathylagus niger Kobyliansky, 2006
 * Bathylagus pacificus C. H. Gilbert, 1890 (slender blacksmelt)
 * Bathylagus tenuis Kobyliansky, 1986

In addition, there exists a species Bathylagus milleri (owlfish) in the deep sea at Monterey Bay Marine Life, Source: also MBARI