Scientific Name
Johnius distinctus  
Johnius distinctus鱗鰭叫姑魚
by: Lab of Fish Ecol. and Evo., BRCAS
Author (Tanaka, 1916) Depth 3 - 40M
Chinese 鱗鰭叫姑魚 Poisonous Fish No 
Family_Chinese 石首魚科 Economic Fish Yes 
Family F381 Sciaenidae Edible Fish Yes  Chinese In Mainland China 鱗鰭叫姑魚 
Max Length 20 cm  Aquarium Fish No  Common Name 春子、油口(澎湖)、臭肚仔(澎湖)、金線加網(澎湖) 
Distribution in World North West Pacific Ocean   Distribution in Taiwan West、North、PonFu 
Habitats Benthos、Estuary、Coastal  Holotype Locality Nagasaki fish market, Japan 
Synonyms Johnius carutta, Johnius tingi, Pseudosciaena tingi, Sciaena distincta, Wak tingi, Waku tingi   
Reference 臺灣魚類誌(沈等, 1993);福建魚類誌(朱等, 1985);Fishbase(2003)  朱元鼎 編 1985 Sasaki, K. etc. 1989 沈世傑 編 Shih-Chieh Shen ed. 1993 
Specimen List ASIZP0055023. ASIZP0058706. ASIZP0058871. ASIZP0060957. ASIZP0063557. ASIZP0065793. ASIZP0065801. ASIZP0065819. ASIZP0066151. ASIZP0076102. ASIZP0078345. ASIZP0700201. ASIZP0801163. ASIZP0801164. ASIZP0801165. ASIZP0801168. ASIZP0805661. ASIZP0807118. ASIZP0911163. ASIZP0911164. ASIZP0911165. ASIZP0911168. ASIZP0917118. FRIP01242. NMMSTP01670. NMNSF00317. NMNSF00476. NMNSF01246. NTMP0102. NTOU-AE6272. NTUM00864. NTUM00866. NTUM00874. NTUM07164. NTUM07165. NTUM07166. NTUM07167. ...List all 60 records... 
Common Name Croaker 
Redlist Status NL Not in IUCN Redlist     
Characteristic Dorsal fin X, I, 28-31; anal fin II, 7; pectoral fin I, 16-18; ventral fin I, 5; lateral-line scales 48-49; gill-rakers 5-6 + 11-13.A medium-sized species, without protruded snout. Mouth large, terminal, slightly oblique; upper jaw protrudes slightly, maxilla ends vertical at rear edge of pupil; Teeth differentiated into large and small in both two jaws, the large forming outer series in upper jaw and inner series in lower jaw. 5 marginal pores and 5 rostral pores; 5 mental pores and the median divided. Anterior nostril round, the posterior one larger and oval. Preopercle serrated, operculum ending in two weak, flattened spines (often hidden by skin); with pseudobranch in inner side of operculum; gill rakers short and thin. Scales cycloid on head except upper part behind eye, body strongly ctenoid; soft-ray dorsal fin, anal fin and caudal fins covered by small cycloid scales. Sagitta morphology referred to as the Johnius form, sagitta moderately triangular, with prominent umbo on outer surface; inner (medial) surface convex, with a tadpole-shaped impression, which head semicircle, tail with conical pit. Top of pectoral-fin base before origin of dorsal and pelvic fins, and behind posterior margin of gill cover. Caudal fin rhomboid. Lining of body cavity black; Swim-bladder morphology referred to as the Johnius form, swimbladder hammer-shaped with a series 14 to 16 pairs of arborescent appendages, branched in a fan manner; the first branching in the head. Color: body purplish brown above and silver-gray below; with a silver-white line along lateral line; spinous part of dorsal fin white with black margin, soft-ray dorsal fin white with brown margin; pelvic and anal fins clear yellow, caudal fin yellowish brown; pectoral fins light brown, axillary fold of pectoral fin with a brown patch; operculum bluish purple. Gill chamber brown, mouth lining white.
Distribution Pon_Fu, North, West. 
Utility Foodfish, marketed fresh.