Scientific Name
Opistognathus castelnaui  
Opistognathus castelnaui卡氏後頜魚
by: Lab of Fish Ecol. and Evo., BRCAS
Author Bleeker, 1860 Depth 15 - 100M
Chinese 卡氏後頜魚 Poisonous Fish No 
Family_Chinese 後頜魚科 Economic Fish No 
Family F346 Opistognathidae Edible Fish No  Chinese In Mainland China 卡氏後頜鰧 
Max Length 25 cm  Aquarium Fish No  Common Name 後頜鱚、狗旗仔 
Distribution in World India Ocean to West Pacific Ocean   Distribution in Taiwan South、PonFu、ShaoLiuChew 
Habitats Coral、Coastal、Coral&Sand  Holotype Locality Singapore 
Synonyms Opisthognathus suluensis   
Reference 臺灣魚類誌(沈等, 1993);Fish of Japan(Nakabo, 2002)  沈世傑 編 Shih-Chieh Shen ed. 1993 Nakabo T. 2002 Nakabo T. 2002 
Specimen List ASIZP0059492. ASIZP0806558. ASIZP0916558. NMMBP03296. NMMBP05445. NMMBP08525. NMMSTP00245. NTUM04460. NTUM06460.  
Barcode2014-10-30,Kwang-Tsao Shao,CO1,100%
Common Name Castelnau's jawfish 
Redlist Status NL Not in IUCN Redlist     
Characteristic Body elongate, slightly compressed. Head large and blunt. Eyes relatively large and high on head. Mouth large; maxilla extending well beyond posterior margin of gill flap. Moderate canine-like teeth in a single row along sides of jaws. Dorsal fin shallowly notched between spinous and soft portions, with XI spines and 14 rays; anal fin with II spines and 14 or 15 rays; caudal fin rounded. Body brown, 2 irregular dark bands along middle of sides. Fins with darker shadings; 7 to 9 large dark blotches along basal third of dorsal fin.
habitats Found in depths greater than 100 m. Mouthbrooders. 
Distribution Distributed in the Indo-West Pacific, including the Ryukyu Islands, South China Sea and Indonesia. Found in southern Taiwanese waters; Siao Liouciou, southwestern Taiwan, and Penghu Islands, western Taiwan. 
Utility No commercial value.