Scientific Name
Atherion elymus  
Atherion elymus糙頭細銀漢魚
by: Lab of Fish Ecol. and Evo., BRCAS
Author Jordan & Starks, 1901 Depth 0 - 3M
Chinese 糙頭細銀漢魚 Poisonous Fish No 
Family_Chinese 細銀漢魚科 Economic Fish No 
Family F249 Atherionidae Edible Fish Yes  Chinese In Mainland China 糙頭細銀漢魚 
Max Length 5 cm  Aquarium Fish No  Common Name 糙頭小銀漢魚、鱙仔、麥銀漢魚 
Distribution in World Australia   Distribution in Taiwan East、South、North、ShaoLiuChew、LanI Is.、Greeb IS. 
Habitats Coral、Coastal  Holotype Locality Misaki, Kanagawa Prefecture, Sagami Sea, Japan 
Synonyms Atherion elymus aphrozoicus, Atherion elymus asper, Atherion elymus freyi, Atherion maccullochi   
Reference 臺灣魚類誌(沈等, 1993);The Live Marine Resources of the Western Central Pacific, Vol.4(FAO,1999);Fish of Japan(Nakabo, 2002)  Jordan, D. S. etc. 1901 沈世傑 編 Shih-Chieh Shen ed. 1993 Carpenter, K. E. etc. 1999 Nakabo T. 2002 Nakabo T. 2002 
Specimen List ASIZP0056427. ASIZP0056915. ASIZP0058764. ASIZP0059380. ASIZP0060430. ASIZP0061385. ASIZP0062718. ASIZP0074193. ASIZP0074196. BPBMI23075. NMMBP05604. NMMSTP00035. NTUM02157. NTUM06287. NTUM06344. USNM00179322.  
Common Name Prickleface silverside; Bearded hardyhead; Bearded silverside; Japanese silverside 
Redlist Status NL Not in IUCN Redlist     
Characteristic Body slender. Mouth barely protractile and with thin lips. Basihyal and mesopterygoids usually with teeth. No notch present at the anterior border of preopercular bone. Face with Shangreen denticles. Ascending process of premaxilla with no lateral processes present. Distal end of maxilla blunt and truncate. Gill rakers on lower limb of first gill arch 10 to 14. First dorsal fin with III to V spines; second dorsal fin with I spine and 8 to 13 soft rays;a nal fin with I spine and 13 to 15 soft rays; pectoral fins with I spine and 11 to 14 soft rays. Body scales moderately large, dorsoventrally elongated with circuli restricted to anterior half of scale; 40 to 44 midlateral scales; 5 or 5.5 scales in transverse rows along side of body; predorsal scales 16 to 19; interdorsal scales 5 to 8. Anus well behind tips of pelvic fins. Abdomen, lower half of midlateral band, and opercle silvery; spots on middorsal line large and silvery blue.
habitats Loose aggregations inhabit tide pools and rocky shorelines and reef margins. Eggs are large. 
Distribution Widely found in the Western Pacific from southern Japan south to northern Queensland, Australia. Has been collected close to the islands in Micronesia, Melanesia, Fiji and New Guinea. It is found in eastern and southern Taiwanese waters. 
Utility No commercial value.