Porogadus guentheri Jordan & Fowler 1902

This species is distinguished by the following characters: precaudal vertebrae 16-17; first gill arch with long gill rakers 18-21, broad, bladed; HL:HD 1.71-1.79; most head spines are strong: on ethmoidal, prefrontal, interorbital, supraorbital, sphenotic, supratemporal, inner and outer posttemporal, inner preopercular rim, lacrimal with ridge, and weak on outer preopercular rim, absent on 5th infraorbital; opercular spine is sharp, extruding; maxilla with single row of scales along upper margin in front of supramaxilla; the large opercular flap with ridges; lower lateral line pores until beginning of anal fin 16; narrow dentition patch on vomer with few or 1-2 (rarely 3) rows of teeth; palatines with moderately broad dentition patch (3-6 rows of teeth); otolith with single colliculum but indentation at ventral margin and rarely separate colliculi; OL:OH = 1.45-1.64; OL:TCL = 1.87-2.52 (Ref. 125143).

A benthopelagic species at bathyal depth (Ref. 56809). Uncommon species (Ref. 34024). Oviparous, with oval pelagic eggs floating in a gelatinous mass (Ref. 205).

fisheries: of no interest

主要分布於日本周邊海域，臺灣則分布於東部及南部海域。

深海魚類，不具經濟價值。

體細長且體高極小，小於標準體長的10%，近尾部處則是逐漸側扁。吻端略尖且扁平。基鰓骨中央具有1枚齒板，眼小，眼徑遠小於吻長。頭上方以及側面、眼窩周圍有特化、但不甚發達的棘刺。淚骨處有2-3 根棘刺。體均被圓鱗。背鰭和臀鰭非常的長，後部軟條與尾鰭相連。背鰭鰭條數186；臀鰭鰭條數 158；腹鰭位於前鰓蓋下方，已經退化成2條延長絲狀鰭；胸鰭鰭條數18。體深黑色。

為棲息於水深805-1530公尺深的深海魚類，生態習性所知甚少。