Scientific Name	Hypoatherina valenciennei   Pronounce			by: Lab of Fish Ecol. and Evo., BRCAS
Author	(Bleeker, 1853)	Depth	0 - 5M
Chinese	凡氏下銀漢魚	Poisonous Fish	No
Family_Chinese	銀漢魚科	Economic Fish	No
Family	F251　Atherinidae	Edible Fish	Yes	Chinese In Mainland China	凡氏下銀漢魚
Max Length	12 cm	Aquarium Fish	No	Common Name	鱙仔、硬鱗(澎湖)、豆殼仔(澎湖)
Distribution in World	India Ocean to West Pacific Ocean	Distribution in Taiwan	East、West、South、North、North East、PonFu、ShaoLiuChew、Greeb IS.
Habitats	Coral、Benthos、Estuary、Coastal	Holotype Locality	Padang, Sumatra, Indonesia; Jakarta [Batavia], Java, Indonesia
Synonyms	Allanetta bleekeri, Allanetta valenciennei, Atherina bleekeri, Atherina valenciennei, Atherina valenciennesi, Atherina valenciennesii, Haplocheilus argyrotaenia, Hypoatherina bleekeri, Hypoatherina woodwardi, Pranesus valenciennei
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)  Ivantsoff, W. etc. 1988 沈世傑 編 Shih-Chieh Shen ed. 1993 Carpenter, K. E. etc. 1999 Nakabo T. 2002 Nakabo T. 2002
Specimen List	ASIZP0058553. ASIZP0062606. MTP0019. NMMBP05519. NTMP0862. NTUM02029. NTUM06184. NTUM06427. NTUM06451. USNM00332925.
Common Name	Sumatran silverside; Valencienne's hardyhead
Redlist Status	Not in IUCN Redlist
Characteristic	Body moderately robust, subcylindrical, and slightly compressed. Free edge of premaxilla densely covered with minute shagreen denticles; teeth present on vomer, palatines, ectopterygoids. Ascending process of premaxilla moderately wide and long, lateral process short and wide at base. Gill rakers long and slender 20 to 26 on lower limb of first gill arch. First dorsal fin with IV to VII spines; second dorsal fin with I spine and 8 to 10 soft rays; anal fin with I spine and 10 to 13 soft rays. Body covered with weakly ctenoid scales; 43 to 46 midlateral scales; 5 or 6 scales in transverse rows along side of body. Predorsal scales 17 to 23; interdorsal scales 6 to 8. Anus 1 to 4 scales in front of tips of pelvic fins. Body blue-green above, whitish below, and with dark tip to snout; scales above midlateral band edged with black; fins clear but with small traces of pigment; head, eye, opercle, and preopercle silvery gold.
habitats	Found near the coast and the surface. Occurs in estuaries. Probably important as forage fish. Nothing is known of the biology of this fish.
Distribution	Widely distributed in Indo-West Pacific including Java, Borneo, Sumatra, Sulawesi, Viet Nam, Singapore, New Britain, Hermit Island Group, Papua New Guinea, Solomon Islands, Hong Kong, and as far north as Japan. It is common in waters around Taiwan.
Utility	No commercial value.