Hyporhamphus yuri Collette & Parin 1978

Upper jaw longer than in Hyporhamphus balinensis and Hyporhamphus affinis, its length almost equal to its width; vertebrae 58 or more; preorbital bone 1.1-1.6 times in diameter of orbit.

Dorsal spines (total): 0; Dorsal soft rays (total): 15 - 18; Analspines: 0; Analsoft rays: 17 - 19; Vertebrae: 59 - 61

主要分布於西北太平洋區，包括臺灣及日本琉球群島等沿海。臺灣分布於東部。

數量較少，偶為岸邊待袋網等固定漁具捕獲。可食用，但不具經濟價值。

體延長，側扁，橫斷面近正方形，標準體長為頭長之4.4-5.0倍，為體高之9.6-11.9倍。鼻孔突不呈絲狀。下頜延長成喙狀，頭長為喙長之0.8-1.0倍；上頜短小，其頂部呈三角形，被鱗，三角形之長為寬之0.8-1.0倍。眼前溝呈Ｔ形，具向後分支。眼徑為眼前骨長之1.1.1-6倍；具眶前脊。頜齒大多為單峰齒，僅下頜之後部為三峰齒。第一鰓弓上鰓耙36-44。體被圓鱗；側線位低，於胸鰭基底下方具一向上分支，向上延伸至胸鰭基底；背前鱗42-46。鰾為單室型。背鰭與臀鰭對在，後位，臀鰭起點在背鰭第3-4軟條之下方，背鰭具15-18軟條，臀鰭具17-19軟條；胸鰭較短，標準體長為胸鰭長之8.4-9.9倍；腹鰭短小，胸鰭基底至腹鰭基底之間距為腹鰭基底至尾鰭下葉基底之1.0-1.2倍；尾鰭深開叉，下葉長於上葉。體背呈淺灰藍，腹部白色，體側中間有一條銀白色縱帶，無垂直暗斑；喙為黑色，前端具明亮之橘紅色。

主要棲息沿岸水域表層，成群洄游，可進入河口區，生態習性不詳。

Hyporhamphus yuri is a halfbeak from the family Hemiramphidae which has been reported from Okinawa and nearby islands in the north-west Pacific Ocean. This species was described by Bruce Baden Collette & Nikolai Vasilyevich Parin in 1978 from a type obtained at the Naha Market in Okinawa. The specific name honours the Russian ichthyologist Yuri Nikolayevich Shcherbachev of the Institute of Oceanology, Academy of Sciences of the USSR.