View data on Catalog of Fishes here.
Dorsal-fin rays 12; anal-fin rays 16–17; pectoral-fin rays15; gill rakers 18; vertebrae (rarely 33). Largest specimen less than 60 mm SL; body broad , tapering into long and narrow caudal peduncle; its length greater than depth ; post-temporal spine short, rough surfaced dorsally, less than one-fourth of the diameter of orbit; dorsal spine short, low; preopercle spine triangulate; eye large, round, its length about equal to width; greatest distance between frontal crests (interorbital) less than or equal to length of subcaudal photophore group; abdominal keel scales not extending ventrally; supra-abdominal photophores in essentially straight line, first may be slightly raised above third ; first supra-anal photo photophore noticeably lower than second, which is lower than third; jaws medium to large teeth present on posterior vomerine shaft gill rakers medium, slightly spinose; in preservative pigment dark dorsally with a very reduced pigment bar; much reduced light stripe not reach middorsal line; ventral border of dorsal pigment raised above supra-anal photophores; small pigment spots present on lateral midline.
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 (occasionally 10); body robust, less than 1.9 times body depth; first supra-anal photophore markedly lower than second. Teeth present on posterior vomerine shaft; second supra-anal photophore lower than third; supra-abdominal photophores symmetrical, first not markedly raised above third. Dark pigment bar greatly reduced or absent; supra-abdominal photophores essentially in straight line; gill rakers 18.
Known from off New Zealand.
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 about 60 mm SL
Off New Zealand, 31°57'S, 177°38'E.
Holotype: NMNZ P.4670
Polyipnus ruggeri is a species of ray-finned fish in the genus Polyipnus. It is found in the Indo-Pacific.[1]
Polyipnus ruggeri is a species of ray-finned fish in the genus Polyipnus. It is found in the Indo-Pacific.
