Scientific Name
Plectranthias yamakawai  
Plectranthias yamakawai山川氏棘花鱸
by: Lab of Fish Ecol. and Evo., BRCAS
Author Yoshino, 1972 Depth 100 - 250M
Chinese 山川氏棘花鱸 Poisonous Fish No 
Family_Chinese 鮨科 Economic Fish Yes 
Family F338 Serranidae Edible Fish Yes  Chinese In Mainland China 山川氏棘花鮨 
Max Length 20 cm  Aquarium Fish No  Common Name 花鱸、紅魚(澎湖) 
Distribution in World North West Pacific Ocean   Distribution in Taiwan West、South 
Habitats Coral、Benthos、Coastal  Holotype Locality Okinawa 
Synonyms Plectranthias anthioides   
Reference 臺灣魚類誌(沈等, 1993);Plectranthias sheni, a new species and P. kamii, a new record of anthiine fishes (Perciformes: Serranidae) from Taiwan(Chen & Shao, 2002)  Yoshino, T. 1972 沈世傑 編 Shih-Chieh Shen ed. 1993 Chen, J. P. etc. 2002 
Specimen List ASIZP0056037. ASIZP0056321.  
Common Name Yamakawa's basslet 
Redlist Status NL Not in IUCN Redlist     
Characteristic Base of dorsal spines connected with base of soft rays, with X spines & 17 soft rays, the fourth or fifth longest; anal fin with III spines & 7 soft rays; Vertebrae: 26. Gill rakers 6-8 on upper limb, 11-12 on lower limb of first gill arch; body depth 2.4-2.7 times in standard length. Body reddish yellow above and whitish below, speckled with dark green on upper half of the body when fresh. A large reddish blotch of about eye diameter below lateral line. Ventral, anal and caudal fins yellowish; pectorals reddish. Head thickly scaled except snout, preorbital, lips, both jaws and throat. Cheek with 7 rows of scales. Mouth large, oblique and protractile; lower jaw slightly protruded when closed. Maxillary extends to below the posterior border of pupil.
habitats Inhabit deeper rocky reefs 200 m, demersal, carnivorous, feed on small fish and crustacean. 
Distribution Western Pacific. West and South Taiwan. 
Utility Commercial small species, but unusual.