Scientific Name	Atherion elymus   Pronounce			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	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.