Dolichopteryx pseudolongipes, a new species of spookfish (Argentinoidei: Opisthoproctidae) from the eastern Pacific Ocean

• Published in: Ichthyological research Vol. 55; no. 3; pp. 267 - 273
• Main Authors: Fukui, A.(Tokai Univ., Shizuoka (Japan). School of Marine Science and Technology), Kitagawa, Y, Parin, N.V
• Format: Journal Article
• Language: English
• Published: Japan Springer Japan 01.08.2008; Springer Nature B.V
• Subjects: Animal Systematics/Taxonomy/Biogeography; Argentinoidei; Biomedical and Life Sciences; Dolichopteryx; Dolichopteryx longipes; EASTERN PACIFIC; Ecology; ESPECE NOUVELLE; ESPECIES NUEVAS; EYES; Fish; Freshwater & Marine Ecology; Life Sciences; Marine biology; MORFOLOGIA; MORPHOLOGIE; MORPHOLOGY; NEW SPECIES; OEIL; OJOS; OPISTHOPROCTIDAE; PACIFICO ORIENTAL; PACIFIQUE ORIENTAL; Zoology; IE, Pacific; New species; Opisthoproctidae; Eastern Pacific Ocean
• ISSN: 1341-8998; 1616-3915
• DOI: 10.1007/s10228-007-0023-0

A new species of opisthoproctid, Dolichopteryx pseudolongipes , is described on the basis of three specimens (48.7–79.9 mm in standard length: SL) collected from the eastern Pacific Ocean. This species is characterized by small tubular eyes (diameter 2.7–3.9% SL), presence of an adipose fin, anal fin base originating under the dorsal fin base, relatively short predorsal (73.3–73.8% SL), prepelvic (64.3–67.9% SL), preanal (77.4–80.1% SL), and preanus (71.5–75.7% SL) lengths; 31–33 (=9–10 + 22–24) gill rakers and 43–45 vertebrae. Although D. pseudolongipes had previously been confused with Dolichopteryx longipes , many differences between the species are apparent [e.g., adipose fin absent, anal fin base origin just behind dorsal fin base, greater prepelvic length (70.3–72.7% SL), 25 gill rakers, and 46–47 vertebrae in D. longipes ].