Abstract
Two new species of the deep-sea fish genus Pseudoscopelus are described, P. lavenbergi from the eastern Pacific, and P. bothrorrhinos from the western Pacific and Indian Oceans. A new diagnosis for Pseudoscopelus based on two synapomorphies is proposed: the dorsal margin of the orbit is formed by infraorbital 6; the last pore of the infraorbital canal is on the dorsal edge of the orbit, anterior to the middle of the pupil. Twelve species of the genus are considered valid, with P. microps confirmed as a junior synonym of P. altipinnis, and P. stellatus regarded as species inquerida.References
Beebe, W. (1932) Nineteen new species and four post-larval deep-sea fishes. Zoologica, 13, 47–107.
Eschmeyer, W.N. (Editor) (2006) Catalog of Fishes. California Academy of Sciences. Available from http://www.calacademy.org/RESEARCH/ichthyology/catalog/fishcatsearch.html (accessed 12 May 2006)
Fink, W.L. (1981) Ontogeny and phylogeny of tooth attachment modes in actinopterygian fishes. Journal of Morphology, 167, 167–184.
Fowler, H.W. (1934) Descriptions of new fishes obtained 1907 to 1910, chiefly in the Philippines Islands and adjacent seas. Proceedings of the Academy of Natural Sciences of Philadelphia, 85, 233–367.
Hubbs, C.L. & Lagler, K.F. (1947) Fishes of the Great Lakes region. Cranbrook Institute of Science, 26, 1–186.
ICZN (1999) International Code of Zoological Nomenclature. 4th Edition. The International Trust for Zoological Nomenclature, London, xxix + 306 pp.
Johnson, G.D. & Patterson, C. (1993) Percomorph phylogeny: a survey of acanthomorphs and a new proposal. Bulletin of Marine Science, 52, 554–626.
Lavenberg, R.J. (1974) Swallowerfishes of the genus Pseudoscopelus (Family Chiasmodontidae): osteology, systematics, distribution and relationships. PhD thesis, University of Southern California, Los Angeles, 390 p.
Leviton, A.E., Gibbs, R.H., Heal, E. & Dawson, C. E. (1985) Standards in herpetology and ichthyology. Part I. Standard symbolic codes for institutional resource collections in herpetology and ichthyology. Copeia, 1985, 802–832.
Lütken, C.F. (1892) Spolia Atlantica. Scopelini Musei zoologici Universitatis Hauniensis. Bidrag til Kundskab om det aabne Havs Laxesild eller Scopeliner. Med et tillaeg om en anden pelagisk fiskeslaegt. Kongelige Danske Videnskabernes Selskab Skrifter Series 6, 3, 221–297.
McDowall, R.M. (2003) Protocols for enumerating the principal caudal fin rays of fishes. New Zealand Journal of Zoology, 30, 259–261.
Mooi, R.D. & Paxton, J.R. (2001) Chiasmodontidae. In: K.E. Carpenter and V. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the western Central Pacific. Volume 6 Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles, sea turtles, sea snakes and marine mammals. FAO, Rome, pp. 3495–3496.
Nelson, J.S. (2006) Fishes of the World. 4th Edition. John Wiley and Sons Inc., New York, 601 pp.
Norman, J.R. (1929) The teleostean fishes of the family Chiasmodontidae. The Annals and Magazine of Natural History Series 10, 3, 529–546.
Parr, A.E. 1933 Deepsea Berycomorphi and Percomorphi from the waters around the Bahamas and Bermuda islands. (Scientific results of the third oceanographic expedition of the "Pawnee" 1927.) Bulletin of the Bingham Oceanographic Collection, 3, 1–51.
Prokofiev, A.M. & Kukuev, E.I. (2005) Preliminary review of the Atlantic linebellies of the genus Pseudoscopelus with remarks on the species composition of the genus in the world’s fauna (Perciformes, Chiasmodontidae). I. Voprosy Ikhtyologii, 45, 749–767 (in Russian, English translation Journal of Ichthyology, 45, 712–729).
Prokofiev, A.M. & Kukuev, E.I. (2006a) Preliminary review of the Atlantic linebellies of the genus Pseudoscopelus with remarks on the species composition of the genus in the world’s fauna (Perciformes, Chiasmodontidae). II. Voprosy Ikhtyologii, 46, 159–181 (in Russian, English translation Journal of Ichthyology, 46, 212–233).
Prokofiev, A.M. & Kukuev, E.I. (2006b) Pseudoscopelus parini sp. nova. A new species of linebellies (Perciformes: Chiasmodontidae) from the western Pacific Ocean. Voprosy Ikhtyologii, 46, 558–561 (in Russian, English translation Journal of Ichthyology, 46, 481–484).
Prokofiev, A.M. & Kukuev, E.I. (2006c) Two new species of linebellies (genus Pseudoscopelus) with a revised key of species (Perciformes: Chiasmodontidae). Journal of Ichthyology, 46 (suppl. 1), S21-S37.
Tanaka, S. (1908) Notes on some rare fishes of Japan, with descriptions of two new genera and six new species. Journal of the College of Sciences, 23, 1–24.
Webb, J.F. (1989) Gross morphology and evolution of the mechanoreceptive lateral-line system in teleost fishes. Brain, Behavior and Evolution, 33, 34–53.