Enneapterygius philippinus (Peters 1868)

Pectoral-fin rays15, at least some branched; caudal peduncle without distinctive bar or marking; body without well defined bars; body, head and fins of males densely and evenly covered with melanophores, lower half of head generally darker than upper, in immature males and females less densely covered with melanophores sometimes showing indistinct oblique bars on body and anal fin; supratemporal sensory canal C-shaped, running in a curve in front of the first dorsal-fin spine; single symphysial mandibular pore present; no labial folds.

Dorsal spines (total): 13 - 16; Dorsal soft rays (total): 8 - 9; Analspines: 1; Analsoft rays: 15 - 17

Adults occur in tide pools; in shallow water on beach rock, brown algae and coralline algae. Apparently associated with coralline rocky shore or reef flat (Ref. 27223). Eggs are hemispherical and covered with numerous sticky threads that anchor them in the algae on the nesting sites (Ref. 240). Larvae are planktonic which occur primarily in shallow, nearshore waters (Ref. 94114).

分布於西太平洋區，西起於賽席爾及馬達加斯加，東至馬紹爾群島、薩摩亞及澳洲 (西澳洲及昆士蘭沿海)，北至琉球群島。

小型魚類，僅具學術研究價值。

體形小，圓柱狀。上頜向後延伸至瞳孔前緣下方；雄魚吻部長於雌魚；齒小，上下頜具椎形齒；鋤骨及腭骨前端具齒群。眼眶上緣觸角短，呈葉狀。鼻瓣膜為葉狀。後顳骨枝稍彎曲，呈”I”形，具4雙分岔分枝。頤部感覺孔 2-3 +1 + 2-3。頭部、胸部及胸鰭基部無鱗。體櫛鱗，尾柄圓鱗。側線不連續，分為前後二段，前段側線為孔鱗10-15個，孔鱗側線從胸鰭基後方即稍下降，末端位於第二背鰭第六-7硬棘末端下方；後段側線具2列缺刻鱗16-22個，末端止於尾柄。側線上鱗列 4 + 2 + 4。D. III+X-XIII+7-10； A. I+14-17； P. iii + 5 + vi-vii (14-15)；L.l. 10-15 + 16-22。背鰭低矮，分成三枚，但長度不超過第二背鰭第一軟條；臀鰭起始於第十至第十一側線孔鱗；胸鰭末端達第八至第九臀鰭軟條。雄魚頭部頭部背側綠色，腹側黑色，體側散布白色斑點及斑塊，背側棕色；雌魚體側綠色至棕色，其鱗片邊緣棕色及白色斑點，尾鰭基部具黑色橫紋。(李承運、林沛立2012/11編寫)

主要棲息於潮池或珊瑚礁岩平台，水深不超過8m。以藻類為食。

Enneapterygius philippinus, the minute triplefin, is a species of triplefin blenny in the genus Enneapterygius. It was described by Wilhelm Peters in 1868. This species occurs in the Indo-Pacific from Christmas Island to Samoa, and from the Ryukyu Islands in the north south to Australia.