Polyipnus triphanos Schultz 1938

View data on Catalog of Fishes here.

Dorsal-fin rays 11–12; anal-fin rays 17 (rarely 18 or 19); pectoral-fin rays 13–14; gill rakers (rarely 15) 16–18 (rarely 19); vertebrae 33. Body broad, tapering into narrow caudal peduncle; its height slightly greater than length of subcaudal photophore group; anal pterygiophore spines, and its narrower trunk and caudal peduncle; post-temporal spine short, needlelike; dorsal spine short; preopercle spine short, triangulate; abdominal keel scales extend only slightly below ventral body margin; first supra-anal photophore markedly lower than other two; first supra-abdominal raised above others, second lower than third, jaw medium to small; teeth minute; gill rakers medium, spinose; in preservative, pigment dark dorsally; dark pigment bar reaches almost to midline followed by light stripe reaching towards mid-dorsal line; ventral margin of dark dorsal pigment markedly raised on trunk above supra-anal photophores; pigment spots present on trunk midline, striations not distinct.

Post-temporal spine simple, bearing no basal spines; lateral edge of post-temporal-supracleithrum smooth; keel scales with smooth ventral surfaces; supraanal photophores separate, usually raised well above anal group. Post-temporal spine short, its length less than one-fourth the diameter of orbit; anal photophore number 7 to 9;body robust, less than 1.9 times body depth; first supra-anal photophore markedly lower than second. Teeth absent on posterior vomerine shaft; second supra-anal photophore even with or raised above third; supra-abdominal photophores nonsymmetrical, first photophore raised well above other two. Gill rakers usually 16 to 18; dorsal-fin rays 11 to 12; lower margin of dark dorsal pigment markedly raised above supra-anal photophores.

Known from off the Philippines, Japan, and Indonesia.

Baird RC. 1971. The Systematics, Distribution, and Zoogeography of the Marine Hatchetfishes (family Sternoptychidae). Bulletin of the Museum of Comparative Zooology 142(1):1–128.

Baird RC. 1971. The Systematics, Distribution, and Zoogeography of the Marine Hatchetfishes (family Sternoptychidae). Bulletin of the Museum of Comparative Zooology 142(1):1–128.

To approximately 50 mm SL.

Near Philippines, 13°35'30"N, 121°48'E, Albatross station 5368, depth 181 fathoms.

Holotype: USNM 103027.

Found on the continental slope and shelf (Ref. 75154).

分布於臺灣西南部及菲律賓群島，而向南經過Sulu，Celebes和Banda Seas並進入西部的Coral Sea。也曾有記錄在印度洋及日本群島。

一般以底拖網捕獲，不具食用經濟價值，通常做為下雜魚用。

所有的發光器鱗片邊緣皆平滑無小棘或鋸齒。PO 1； PTO 1； BR 6； IP 6；PRO 1；OVA 3；OVB 3；PV 10；L 1； VAV 5；ACB 7-10；ACC 4；D10-11﹔A15-18﹔P12-13﹔V 5-7﹔GR 17-18﹔脊椎骨33。側色素條短為粗大的倒三角形，從背緣逐往側腹部延伸，但其尖端並未到達中線。。背側色素條有兩個凹槽。腹上發光器呈V字形結構，#1OVB腹上發光器高於其他兩個，而且#3OVB高於#2OVB約一個發光器的距離。有一短的後顳骨棘出現。臀鰭支鰭骨棘消失。ACA臀上發光器為3，#1ACA獨立，#2和#3 ACA相連並高於#1 ACA及後面的臀部發光器。臀部發光器7-8，在#3和#4 ACB發光器之間有高度差。ACC尾下發光器緊密聚集。

近海中層魚類。利用矩形之中層拖網Rectangular Midwater Trawl(RMT)在Banda Sea不連續深度採集得知夜晚在100-300m間。在菲律賓的採集得知白天在250m處。在台灣西南部利用底拖網採於330m。以橈腳類、端足類、介形蟲、磷蝦和小魚等為食。

Polyipnus triphanos és una espècie de peix pertanyent a la família dels esternoptíquids.

Polyipnus triphanos, commonly known as the threelight hatchetfish, is a species of ray-finned fish in the family Sternoptychidae. It occurs in deep water in the Indo-Pacific Ocean, at depths between about 322 and 966 metres (1,100 and 3,200 ft).

Polyipnus triphanos es un pez que pertenece a la familia Sternoptychidae.​ Habita en las aguas del Océano Indo Pacífico a una profundidad que va desde los 322 a 966 metros.​

Esta especie fue reconocida por primera vez en 1938 por Schultz.​

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Polyipnus triphanos Polyipnus generoko animalia da. Arrainen barruko Sternoptychidae familian sailkatzen da.

三烛光鱼（学名：Polyipnus triphanos）为褶胸鱼科烛光鱼属的鱼类。分布于台湾岛等，屬深海魚類，棲息深度可達331公尺，體長可達4.7公分。该物种的模式产地在菲律宾附近。