. Fishes. Fishes. Fig. 262—Lantern-fish, Myctophum opalinum Goode & Bean. Gulf Stream. fishes of the depths, from which their lantern-like spots and large eyes help them to escape. The numerous species are now ranged in about fifteen genera, although earlier writers placed them all in a single genus Myctopkmn (Scopelus). In the genus Diaphus {Mthoprora) there is a large luminous gland on the end of the short snout, like the headlight of an. Fig 263 —Lantern-fish, Ceratoscopdus niadeirensis (Lowe). Gulf Stream. engine. In Dasyscopelns the scales are spinescent, but in most of the genera, as
. Fishes. Fishes. Fig. 262—Lantern-fish, Myctophum opalinum Goode & Bean. Gulf Stream. fishes of the depths, from which their lantern-like spots and large eyes help them to escape. The numerous species are now ranged in about fifteen genera, although earlier writers placed them all in a single genus Myctopkmn (Scopelus). In the genus Diaphus {Mthoprora) there is a large luminous gland on the end of the short snout, like the headlight of an. Fig 263 —Lantern-fish, Ceratoscopdus niadeirensis (Lowe). Gulf Stream. engine. In Dasyscopelns the scales are spinescent, but in most of the genera, as in Myctophum, the scales are cycloid and caducous, falling at the touch. In Diaphus the luminous spots are crossed by a septum giving them the form of the Greek letter 6 (theta). One of the commonest species is Myctophum humboldti. Chirothricidae.—The remarkable extinct family of Chiro- thricidcB may be related to the Synodontidcc, or Myctophidcs. In this group the teeth are feeble, the paired fins much. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Jordan, David Starr, 1851-1931. New York, H. Holt and Company
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