Review of the Ostichthys japonicus complex (Beryciformes: Holocentridae: Myripristinae) in the northwestern Pacific Ocean, with description of a new species

A taxonomic review of the northwestern Pacific Ocean members of the Ostichthys japonicus complex (Holocentridae: Myripristinae), defined by 3.5 scale rows between the lateral line and spinous dorsal-fin base, recognized three valid species: Ostichthys alamai sp. nov., Ostichthys hypsipterygion Randa...

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Bibliographic Details
Published in:Ichthyological research 2018-07, Vol.65 (3), p.285-314
Main Authors: Matsunuma, Mizuki, Fukui, Yoshino, Motomura, Hiroyuki
Format: Article
Language:English
Subjects:
Animal Systematics/Taxonomy/Biogeography
Biomedical and Life Sciences
Blotch
Ecology
Fin ray counts
Fish
Freshwater & Marine Ecology
Holocentridae
Lateral line
Life Sciences
Meristic counts
Myripristinae
New species
Ostichthys
Ostichthys hypsipterygion
Ostichthys japonicus
Species
Spinules
Zoology
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Description
Summary:A taxonomic review of the northwestern Pacific Ocean members of the Ostichthys japonicus complex (Holocentridae: Myripristinae), defined by 3.5 scale rows between the lateral line and spinous dorsal-fin base, recognized three valid species: Ostichthys alamai sp. nov., Ostichthys hypsipterygion Randall, Shimizu and Yamakawa 1982 and Ostichthys japonicus (Cuvier in Cuvier and Valenciennes 1829 ). Ostichthys alamai , based on 10 specimens (118–179 mm SL) from Panay Island, the Philippines and Sulawesi, Indonesia, is similar to O . hypsipterygion in having longitudinal rows of white spots laterally on the body, but has 17 or 18 (modally 17) pectoral-fin rays [vs. 15 or 16 (15) in the latter], the last dorsal-fin spine fused to the first dorsal-fin soft ray (vs. spine and ray separated), and no white blotch on the pectoral-fin base (vs. white blotch present). It differs from O . japonicus , also occurring in the Philippines, in having relatively longer dorsal- and anal-fin spines, a greater number of well-developed long spinules on the body scales, and rows of white spots laterally on the body (vs. generally absent). Detailed comparisons of O . alamai with other members of the complex are made, and revised diagnoses given for O . hypsipterygion and O . japonicus . Ostichthys sheni Chen, Shao and Mok 1990 and Holotrachys major Whitley 1950 are both regarded as junior synonyms of O . japonicus .
ISSN:1341-8998
1616-3915
DOI:10.1007/s10228-018-0625-8