Scientific Name
Eleutheronema rhadinum  
Eleutheronema rhadinum多鱗四指馬鮁
by: Lab of Fish Ecol. and Evo., BRCAS
Author (Jordan & Evermann, 1902) Depth 1 - 30M
Chinese 多鱗四指馬鮁 Poisonous Fish No 
Family_Chinese 馬鮁科 Economic Fish Yes 
Family F380 Polynemidae Edible Fish Yes  Chinese In Mainland China 多鱗四指馬鮁 
Max Length 74 cm  Aquarium Fish No  Common Name 四絲馬鮁、四指馬鮁、竹午、大午、午仔、鬚午仔(澎湖)、發鬚午仔(澎湖) 
Distribution in World Japan to South China Sea   Distribution in Taiwan West、South、South West、North、North East、PonFu、ShaoLiuChew 
Habitats Benthos、Estuary、Fresh Water、Coastal、
Holotype Locality Linkou, Taipei, Taiwan, depth 5-8 meters 
Synonyms Eleutheronema tetradactylum, Polydactylus rhadinus   
Reference 臺灣魚類誌(沈等, 1993);福建魚類誌(朱等, 1985);The Live Marine Resources of the Western Central Pacific, Vol.5(FAO, 2001);Motomura, H., Y. Iwatsuki, S. Kimura and T. Yoshino 2002 Revision of the Indo-West Pacific polynemid fish genus Eleutheronema (Teleostei: Perciformes). Ichthyol. Res. 49(1):47-61.   Jordan, D. S. etc. 1902 朱元鼎 編 1985 沈世傑 編 Shih-Chieh Shen ed. 1993 Hiroyuki Motomura 2003 Hiroyuki Motomura, Masahide Ito, Mayumi Takayama, Yuriko Haraguchi etc. 2007 
Specimen List ASIZP0056594. ASIZP0059836. ASIZP0060300. ASIZP0060745Neotype. ASIZP0062916. ASIZP0069761. ASIZP0070208. ASIZP0076173. ASIZP0700135. ASIZP0803251. ASIZP0807088. ASIZP0900506. ASIZP0913251. ASIZP0917088. FRIP00386. FRIP00387. FRIP01343. FRIP22452. MTP0095. NMMBP00999. NMMBP03045. NMMBP03055. NMMBP06541. NMMBP06638. NMMBP06654. NMNSF00592. NTUM01753. NTUM01754. NTUM02285. NTUM02329. NTUM06656. NTUM07722. NTUM08127. NTUM08161.  
Barcode2012-01-15,柯慧玲,CO1,100% 2016-01-27,HAN-YANG,CO1,100%
Common Name East Asian fourfinger threadfin 
Redlist Status NL Not in IUCN Redlist     
Characteristic A large, relatively elongate. Vomer with deciduous tooth plates on both sides. Posterior part of maxilla deep, 3% of SL. Short tooth plate extension onto lateral surface of lower jaw, 8-9% SL. Gill rakers on first gill arch 5-8+5-9. First dorsal fin with VIII spines; second dorsal fin with I spine and 13 to 15 soft rays; anal fin with III spines and 14 to 6 soft rays; anal-fin base longer than second dorsal-fin base; caudal-peduncle length greater than length of anal-fin base; pectoral fins with 17-19 rays and 4 free soft rays. Lateral-line scales82 to 95. Body back and head silvery green or silvery blue; silvery white or yellowish white ventrally; cheeks and suborbital region golden; iris silvery or yellow with a golden green tinge dorsally; fins grey or with yellow or orange tinge, dusky and darkened marginally; pectoral filaments white or creamy.
habitats Inhabits muddy bottoms in bays and sandy-muddy bottoms of continental shelves. 
Distribution Known only from Taiwan, China to Japan. It is mainly found in western and southern Taiwanese waters. 
Utility An excellent food fish. Marketed fresh.