Bridle Triggerfish

Juveniles sand-colored with numerous thin black pinstripes (Ref. 1602); adult males with an oblique yellow band from the corner of mouth backward and another under the chin (Ref. 4420).Description: Characterized further by having longitudinal scale rows 43-54; presence of deep groove in front of eye; nearly straight dorsal and ventral head profiles; body with series of longitudinal ridges bearing small spiny tubercles, ridges extending forward to front of second dorsal fin; rounded caudal fin in juvenile, truncate to slightly double emarginate in adult (Ref. 90102).

Distinct pairing (Ref. 205). Females are territorial, solely tending and guarding the eggs (Ref. 116451). Males exhibit polygyny (Ref. 116451).

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): 3; Dorsal soft rays (total): 27 - 31; Analspines: 0; Analsoft rays: 24 - 28

Inhabit coastal rocky reefs, often silty habitats and in lagoons on open sand (Ref. 48637). Solitary (Ref. 90102). Found over sand and rubble patches of seaward reefs (Ref. 205). Benthopelagic (Ref. 58302). Feed on echinoids, fishes, mollusks, tunicates, crustaceans, algae, polychaete worms, foraminiferans and detritus. Oviparous (Ref. 205).

fisheries: minor commercial; aquarium: commercial; price category: medium; price reliability: very questionable: based on ex-vessel price for species in this family

分布於印度-太平洋區，西起非洲東岸，東至土木土及馬貴斯群島，北至日本南部，南至羅得豪島。台灣分布於北部、南部、東部、東北部及綠島等海域。

通常以陷阱法、潛水或流刺網捕獲，以生鮮或醃製於市場出售，或以其可愛的模樣而常被飼養於水族館中，供人欣賞。

體稍延長，呈長橢圓形， 尾柄短。口端位，齒白具缺刻。眼前有一深溝。頰部被鱗；鰓裂後有大型骨質鱗片。尾柄鱗片具小棘列，且向前延伸至身體中央，第一背鰭下方。背鰭兩個，基底相接近，第一背鰭位於鰓孔上方，第I棘粗大，第II棘則細長，第III背鰭棘明顯；背鰭及臀鰭軟條截平；尾鰭弧形。體深褐色；雄魚在口角有一白帶向後延伸至胸鰭基前方，雌魚無此色帶；除胸鰭褐色外，餘鰭皆為深褐色。

主要棲息於砂岩混合之向海礁區。主要以甲殼類、軟體動物、蠕蟲、被囊動物、卵及碎屑等為食。

The masked triggerfish (Sufflamen fraenatum) is a species of triggerfish usually found living in coastal reefs or in lagoons. The range of depths where these triggerfish can live varies from 8 to 186 m.

They are found along the Indian Ocean coast of Africa and throughout much of the Indo-Pacific region from Indonesia to the Hawaiian Islands.

Known from seamounts and knolls