Firefly Lanternfish

Anal organs 12; mature males with large, single, black-edged supracaudal gland, about 3/4 or more of the supracaudal space; mature females with 2 infracaudal glands; has a larger supracaudal gland than any other species of the genus (Ref. 39633).

Oviparous (Ref. 31442).

Oceanodromous. Migrating within oceans typically between spawning and different feeding areas, as tunas do. Migrations should be cyclical and predictable and cover more than 100 km.

Dorsal spines (total): 0; Dorsal soft rays (total): 12 - 14; Analspines: 0; Analsoft rays: 17 - 21

Oceanic and mesopelagic. Nyctoepipelagic at the surface (Ref. 4066). Migrates in a diel pattern, residing during daytime at depths of extremely low oxygen levels (0.1 ml Oxygen/liter). Appeared to be opportunistic feeder that preys on a comparatively narrow food spectrum (Ref. 27395).

Oceanic and mesopelagic. Nyctoepipelagic at the surface (Ref. 4066). Neustonic at 0-150 m at night, 500-700 m during day (Ref. 58302). Oviparous, with planktonic eggs and larvae (Ref. 31442).

分布於印度-太平洋熱帶及亞熱帶海域。臺灣則發現於東部周邊水域。

一般以底拖網捕獲，不具食用經濟價值，通常做為下雜魚用。

體中等延長，背鰭前方較高，側扁，後部略細。頭中等大。吻很短，鈍圓。眼大，大於吻長。口大，上頜骨狹長而延伸至前鰓蓋後緣，末端擴大；上下頜、鋤骨及腭骨均具齒。體被大而薄圓鱗，易脫落；側線平直。背鰭單一，位於體中部，具軟條12-14，後部另具一脂鰭；臀鰭基底長於背鰭基底，具軟條18-21；胸鰭基上緣位於瞳孔中心水平線之下方；尾鰭叉形，尾鰭副鰭條柔軟。各部位之發光器位置於下：鼻部背位發光器(Dn)小而圓形，位於眼前上方；鼻部腹位發光器(Vn)小而圓形；眶上位發光器(Suo)小而圓形；眶下位發光器(So)無；鰓蓋位發光器(Op)2個，位於前鰓蓋後緣下方，Op1較Op2小，均在眼眶下緣縱線之下；鰓被架位發光器(Br)3個；胸鰭上方發光器(PLO)位於胸鰭與側線間而接近側線；胸鰭下方發光器(PVO)2個，二者呈斜線；胸部發光器(PO)5個，除PO5微隆起外，幾為一直線；腹部發光器(VO)4個，沿腹緣呈水平狀；腹鰭上位發光器(VLO)位於腹鰭和側線之中間；臀鰭上方發光器(SAO)3個，三者排列略呈鈍角狀，SAO1位於VO3的上方；體後側位發光器(Pol)2個，Pol1在最後AOa的後上方，Pol2在脂鰭前下方，側線下緣；臀鰭前部發光器(AOa)5-6個，沿臀鰭基部依次排列；臀鰭後部發光器(AOp)6-7個，沿尾柄腹側水平狀排列；尾鰭前位發光器(Prc)2個，相距較離。尾上腺(SUGL)由3-4個橢圓形發光腺組成；尾下腺(INGL)較小而長，約2-3個；二者周圍皆具黑色素。

大洋性中層巡游魚類，具日夜垂直分布習性，白天一般棲息於450-600公尺以上，晚上則上游至水深0-200公尺附近處覓食，以小蝦等甲殼類為食。