Scientific Name
Paraplagusia bilineata  
Paraplagusia bilineata雙線鬚鰨
by: Lab of Fish Ecol. and Evo., BRCAS
Author (Bloch, 1787) Depth 5 - 120M
Chinese 雙線鬚鰨 Poisonous Fish No 
Family_Chinese 舌鰨科 Economic Fish Yes 
Family F502 Cynoglossidae Edible Fish Yes  Chinese In Mainland China 長鈎鬚鰨 
Max Length 30 cm  Aquarium Fish No  Common Name 牛舌、龍舌、扁魚、皇帝魚、比目魚 
Distribution in World India Ocean to West Pacific Ocean   Distribution in Taiwan West、South、North、North East、PonFu 
Habitats Benthos、Estuary、Fresh Water、Coastal  Holotype Locality China 
Synonyms Paraplagusia bilineatus, Paraplagusia formosana, Paraplagusia macrocephalus, Plagusia acumineata, Plagusia bilineata, Plagusia brevirostris, Plagusia dipterigia, Plagusia dypterygia, Plagusia marmorata, Plagusia notata, Plagusia robinsoni, Pleuronectes bilineata, Pleuronectes bilineatus ...all 14..  
Reference 臺灣魚類誌(沈等, 1993);中國動物誌-鰈形目(李&王, 1995)  沈世傑 編 Shih-Chieh Shen ed. 1993 李思忠, 王惠民 1995 
Specimen List ASIZP0058076. ASIZP0058077. ASIZP0061974. ASIZP0074281. ASIZP0074692. ASIZP0074693. ASIZP0074694. ASIZP0074695. ASIZP0078971. ASIZP0080064. ASIZP0080065. ASIZP0080371. ASIZP0807290. ASIZP0807398. ASIZP0807399. ASIZP0807593. ASIZP0900447. ASIZP0917290. ASIZP0917398. ASIZP0917399. FRIP00919. NMMBP05506. NMMSTP00013. NTHUB02687. NTMP0581. NTUM01618. NTUM01619. NTUM02506. NTUM04835. NTUM05109. USNM00138078.  
Barcode2015-10-23,Chia-Hao Chang,CO1,% 2016-01-13,Chia-Hao Chang,CO1,100% 2016-02-22,Yung-Chieh,CO1,100% 2016-02-22,Yung-Chieh,CO1,100%
Common Name Patterned tongue-sole; Doublelined tonguesole; Double-lined tongue sole; Fingerlip tonguesole; Fringelip tonguefish 
Redlist Status NL Not in IUCN Redlist     
Characteristic Dorsal-fin rays 96-119; anal-fin rays 74-90. Upper side tan, marbled with dark wavy lines enclosing pale patches; 2 lateral lines on eyed side, none on blind side. Caudal vertebrae 36-44; mid-lateral line scales 75-109. Body elongate. Eyes with a scaly interorbital space. Snout rounded; rostral hook long and reaching posteriorly well beyond vertical through posterior margin of lower eye; corner of mouth not reaching beyond vertical through posterior margin of lower eye, nearer to gill opening than to tip of snout. Mouth fringed with branched labial papillae. Scales ctenoid on both sides of body. Eyed side brown, sometimes spotted or marbled with darker patches; blind side tinged with yellow.
habitats Found on mud and sand bottoms of the continental shelf. Enters shallow estuarine waters and tidal rivers. Feeds predominantly on bottom-living invertebrates. 
Distribution Indo-Pacific: Red Sea and east coast of Africa south to Durban (South Africa) eastward to the Philippines, north to southern Japan, south to New Guinea and northeastern Australia. Taiwan: South, North, North-East, West. 
Utility Commercial fishery species.