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RESEARCH ARTICLE
Peristedion longicornutum,
a new species of armored gurnard from the western
Pacific Ocean (Teleostei: Peristediidae)
Ronald Fricke, Toshio Kawai,
Takuji Yato & Hiroyuki Motomura
Abstract
The Longhorn Armored Gurnard
Peristedion longicornutum n. sp. is described
from Papua New Guinea, Solomon Islands, and Vanuatu,
based on 28 specimens collected with a beam trawl
at depths of 340-506 meters. The new species
is characterized among the Indo-Pacific species of
the genus by 21-23 dorsal-fin soft rays; 20-22
anal-fin soft rays; 29-33 bony plates in the
dorsal row; 35-38 in the upper lateral row; 26-29
in the lower lateral row; 23-26 in the ventral
row; 3 lip and 6-7 chin groups of barbels; 14-26
branches on the filamentous barbel; 15-24 total
chin barbels; the anterior edge of the 4th sensory
pore of the rostral projection half a pupil diameter
anterior to the anterior edge of the premaxilla; a
very long and needle-like rostral projections, length
14.2-22.3% SL; a wide interspace between rostral
projections, 0.20-0.30 in rostral-projection
width, and a rounded margin on the medial side at
the base; a smooth and straight perifacial rim; the
upper detached pectoral-fin ray longer than the joined
pectoral fin; and the peritoneum pale. A key to the
Indo-West Pacific species of the genus Peristedion
Lacepède, 1801 is presented.
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CITATION:
Fricke, R., Kawai, T., Yato,
T. & Motomura, H. (2017) Peristedion longicornutum,
a new species of armored gurnard from the western
Pacific Ocean (Teleostei: Peristediidae). Journal
of the Ocean Science Foundation, 28, 90-102.
https://doi.org/10.5281/zenodo.1008818
publication date: 12 October
2017
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