Body fairly elongate. Snout short and blunt, forehead profile strongly rounded over eye, which is much larger than snout. Pyloric caeca 4-7. Dorsal and anal fins fairly long, approximately equal and opposite to each other; dorsal finrays 27-31, pectoral finrays 7-8, pelvic finrays 6 (without a splint bone), anal finrays 26-30. No scales; light organs present, nodular and not on stalks. Mesopelagic at 100-1,000 m, associated with steep slopes; locally very numerous.
Species 2; in Clofnam area 1.
Recent revisions: Markle (1978).
Kingdom Animalia Class Osteichthyes Genus Xenodermichthys Genus Xenodermichthys
Scientific synonyms and common names
Xenodermichthys Günther, 1878 Gender: M; Ann. Mag. nat. Hist., (5) 2: 250 Type: X.nodulosus Günther, by monotypy, South of Yeddo, Japan.
Synonyms
Aleposomus Gill, 1884, Am. Nat., 18: 433 (type: A.copei Gill, by monotypy, no locality, nomen nudum).
Günther, A. 1878. Preliminary notices of Deep-Sea Fishes Collected during the Voyage of H.M.S. Challenger. Ann. Mag. nat. Hist., (5) 2: pp. 17-28, pp. 179-187, pp. 248-251.
Gill, T. N. 1884b. New families of fishes (Stephanoberycidae and Derichthyidae) recently added to the deep sea fauna. Am. Nat., 18: 433.
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