Scientific Name
Gambusia affinis  
Gambusia affinis食蚊魚
by: Lab of Fish Ecol. and Evo., BRCAS
Author (Baird & Girard, 1853) Depth 0 - 1M
Chinese 食蚊魚 Poisonous Fish No 
Family_Chinese 花鱂科 Economic Fish No 
Family F266 Poeciliidae Edible Fish No  Chinese In Mainland China 食蚊魚 
Max Length 4 cm  Aquarium Fish No  Common Name 大肚仔、胎鱂、大肚魚 
Distribution in World North America   Distribution in Taiwan East、West、South、South West、North、North East、PonFu、LanI Is.、Greeb IS. 
Habitats Estuary、Fresh Water  Holotype Locality Rio Medina and Rio Salado, Texas, U.S.A. 
Synonyms Fundulus inurus, Gambusia affinis affinis, Gambusia affinis katruelis, Gambusia gracilis, Gambusia humilis, Gambusia patruelis, Haplochilus melanops, Heterandria affinis, Heterandria patruelis, Zygonectes brachypterus, Zygonectes gracilis, Zygonectes inurus, Zygonectes patruelis ...all 13..  
Reference 臺灣魚類誌(沈等, 1993);臺灣淡水及河口魚類誌(陳及方, 1999)  Baird, S. F. etc. 1853 Chen, T. R. etc. 1968 Otto, R.G. 1973 Al-Daham, N.K. etc. 1977 沈世傑 編 Shih-Chieh Shen ed. 1993 陳義雄,方力行 1999 Jawad, L.A. etc. 2000 Lola T. Dees ? 
Specimen List ASIZP0058498. ASIZP0058499. ASIZP0062080. ASIZP0072736. ASIZP0072737. ASIZP0074820. ASIZP0805419. ASIZP0805420. ASIZP0915419. ASIZP0915420. FRIP00448. NMMBP01960. NMMBP01964. NMMBP01982. NMMBP02069. NMMBP02596. NMMBP05925. NMMBP05932. NMMSTP00667. NMNSF00045. NMNSF00052. NMNSF00146. NMNSF00147. NMNSF00159. NMNSF00925. NMNSF00955. NTMP0409. NTMP0872. NTMP1448. NTOUP201005-240. NTOUP201005-248. NTOUP201005-252. NTOUP201006-386. NTOUP201006-390. NTOUP201202-254. NTOUP201202-288. SU23152. ...List all 43 records... 
Barcode2012-10-15,張家豪,CO1,100% 2012-10-15,張家豪,CO1,100%
Common Name Mosquitofish 
Redlist Status NL Not in IUCN Redlist     
Characteristic Head moderately large, broad and horizontal dorsally. Snout short. Eye large, on side of head. Mouth protractile, oblique; posterior of jaw distant from anterior margin of eye. Body elongated, slightly cylindrical and posterior laterally compressed; dorsal profile horizontal, ventral profile arched to end of anal fin. Scales large; longitudinal scales:29-32; predorsal scales:16-17. Dorsal soft rays:7-9; pectoral soft rays:12; pelvic soft rays:6; anal soft rays:8-10 (female). Dorsal fin far behind snout, postdorsal length about two times the length of dorsal fin base; pectoral fins reach pelvic fins; dorsal fin origin slightly behind pelvic fin origin; pelvic fin origin close to middle between snout tip and caudal peduncle end; anal fin rounded. Brownish or grayish, slightly transparent; darker dorsally and grayish white ventrally.
habitats Prefers standing to slow running water, can be found in ponds, paddy fields and slow moving reaches of river, especially vegetated environments. Highly tolerant to low dissolved oxygen and pollution in water. The third, forth and fifth anal fin rays of ma 
Distribution Northern and Central America. Introduced to Taiwan in 1913, can be found in whole island of Taiwan.