Redcoat Soldierfish

This species is distinguished by the following characters: 2½ scales above lateral line to midbase of spinous portion of dorsal fin; anal fin origin beneath soft portion of dorsal fin; upper spiniform procurrent caudal-fin rays 5 and lower with 4; D XI (XII for all congeners except O. ovaloculus), with last dorsal-fin spine shortest; vomer with near-triangular patch of teeth; head length 2.5-2.65 in SL; dorsal profile nearly straight; pectoral-fin rays 16-17; lateral-line scales 27-28 (usually 27); gill rakers 7-8 + 13-14; depth of body 2.3-2.4 in SL; snout length 4.2-4.8 in HL; caudal peduncle slender, least depth 4.45-4.75 in HL; colour when fresh uniform red (Ref. 114923).

Dorsal spines (total): 11

Caught with a gill net in 114 m off Itsoundzou Island (Ref. 58472).

Four known specimens. Caught with a gill net in 114 m off Itsoundzou Island (Ref. 58472).

分布於西印度洋的留尼旺島；西太平洋的臺灣；中太平洋的土土伊拉島及美屬薩摩亞群島等地。臺灣分布於東北部海域。

稀有種。

體呈卵圓形，中等側扁。頭部具黏液囊，外露骨骼多有脊紋。眼大。口端位，裂斜；主上頜骨長未端達眼後緣；頜骨、鋤骨及腭骨均有絨毛狀群齒。前鰓蓋骨後下角無強棘；鰓蓋骨及下眼眶骨均有強弱不一的硬棘。體被大型粗櫛鱗，後緣具小棘；側線完全，側線鱗數27-28，側線至背鰭硬棘中間點之鱗片數2.5。鰓耙數7-8+13-14=21-22。背鰭連續，單一，硬棘部及軟條部間具深凹，具硬棘XI，軟條13-14；臀鰭有硬棘 IV ，軟條10-11；胸鰭軟條 16-17；尾鰭深叉形。體淡紅色，無明顯之白色斑紋。

主要棲息深度範圍在150公尺到200公尺，是深水型金鱗魚類。以底棲性的無脊椎動物為食。

Four known specimens.