Candidia barbata (Regan 1908)

Diagnosed from all other species of the genus Candidia by the following unique combination of characters: dorsal fin with iii,7 rays; anal fin with iii,9-10 rays; pectoral fin with I, 13-15 rays ; scales on lateral line 51-60; scales above lateral line11-13; scales below lateral line 4-6; predorsal scales 22-26; gill rakers 2-3 + 6-7 (total 9-10); pharyngeal teeth usually 1,4,5 -4,4,1; shallow ventral keel on the posterior half of region between pelvic fin and anus; cheek with a series of 4-6 nuptial tubercles and lower jaw in adult males with 3-5 nuptial tubercles; eye large, check depth about 1.5-2.0 times of eye diameter in adult male; body with a broad, longitudinal bluish-black stripe from upper opercle to caudal fin base, which is irregular and interrupted on anterior half region and forming a large round black mark on caudal fin base; dorsal half of lateral usually uniform dark grayish with very narrow grayish region above bluish-black stripe; ventral half with some blackish brown small spots; and eye with semicircular red-black region on the dorsal one-third to half of eye iris (Ref. 79878). Caudal peduncle slender and belly rounded; barbels 1 pair, minute and located in corner of mouth; lateral line curves downward near belly and upward to middle after reaching caudal peduncle (Ref. 45563).

Dorsal soft rays (total): 10; Analsoft rays: 12 - 13

Lives in upper reaches of rivers and likes to stay in clear waters with lower temperature (Ref. 45563).

Lives in upper reaches of rivers and likes to stay in clear waters with lower temperature (Ref. 45563).

臺灣的特有種，普遍分布於西部各河川以及恆春半島西側的小溪流中。

油炸或紅燒皆宜，亦可飼養於水缸內，極易飼養，但需防其跳出缸外。

體延長而側扁，腹鰭基部後方具不完全的腹稜。頭中大。吻略短。口端位，口裂中大，向後達眼前緣下方；口裂末端有一對細小的紅色觸鬚。成熟雄魚的上頜較為前突，且略呈鉤狀。體被細小圓鱗；側線完整，由鰓蓋的上緣向腹側明顯下彎呈弧形；側線鱗數54-57。各鰭均無硬棘，背鰭軟條 3(不分枝軟條)+ 7(分枝軟條)；臀鰭 3(不分枝軟條)+ 9(分枝軟條)。體背側呈灰褐色，腹部灰白，體側自前鰓蓋的後緣至尾鰭基部有一極為明顯的藍黑色縱帶；成熟雄魚的吻部有極為明顯而尖銳的追星，其頭部下側、腹部、胸鰭及腹鰭均呈鮮紅色；雌魚的體色較淡；各鰭微黃至白色。

初級淡水魚。喜低溫而清澈的水域，游泳能力強，多棲息在河川中、上游及支流。其族群大多喜好在潭尾、潭邊的淺灘以及潭頭較緩流處活動；稚魚則會成群地聚集在溪流兩岸的緩流處覓食。雜食性，極為貪食，有時體型會變的極度肥胖。

Candidia barbata is a species of cyprinid in the genus Candidia. It is endemic to Taiwan.