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Hemimyzon taitungensis 台東間爬岩鰍


Scientific Name:    Hemimyzon taitungensis         
Nomenclater:    Tzeng & Shen, 1981
Family:    F107  Balitoridae
Holotype-Locality:    Taiwan
Habitats:    Fresh Water      
Economic Fish:     No
Habitats Depth:    0 - 10 M      
Aquarium Fish:     Yes
Poisonous Fish:    No      
Edible Fish:     No
Reference:    Tzeng CS and Shen, S. C. (1982). Studies on the homalopterid fishes of Taiwan, with description of a new species. Bull. Inst. Zool. Acad. Sin. 21(2):161-169. Shen, S. C. (ed.) (1993). Fishes of Taiwan. Department of Zoology, National Taiwan University, Ta  Tzeng, C.-S. etc. 1982 沈世傑 編 Shih-Chieh Shen ed. 1993 陳義雄,方力行 1999 
Redlist Status:    2009-04-01COA, Taiwan Redlist: Critically Endangered   IUCN Redlist: Vulnerable(VU)  
Common Name in Engulish:    Taitung river loach
Chinese Name transliteration:    tai dong jian pa yan ciou
Distribution in Taiwan:    East  
Distribution in World:    Taiwan
Max Lenth:     12 cm
Specimen List:     NMMBP05570. NTHUB00766. NTHUB00777. NTHUB00897. NTHUB00913. NTHUB00914. NTHUB00915. NTHUB00925. NTHUB00930. NTHUB00942. NTHUB02241. NTHUB02242. NTHUB02243. NTHUB02244. NTHUB02245. NTHUB02255. NTHUB02331. NTHUB02335. NTUM04941. NTUM04963. NTUM04964. NTUM04965. NTUM04966. NTUM04967. NTUM04968. NTUM04969. NTUM04970. NTUM04971. NTUM04972. NTUM04973. NTUM05291. NTUM05292. NTUM05306. NTUM05310. USNM00300711. USNM00357418.         
Characteristic:    Snout short, wider than depth. Mouth inferior, arched; three rostral fold in front of mouth. Four maxillary barbells in a row and well developed papillae in two rows on upper lip; two pairs of mandibular barbells at corner of mouth. Body thin, elongated, posterior laterally compressed; ventral profile horizontal to origin of anal; dorsal slightly horizontal. Scales tiny, ventral surface of head, thorax and abdomen naked, lateral line scales complete. L.l.:79-87; dorsal fin rays:3+8; pectoral fin rays:12-14+12-14; pelvic fin rays:6-7+10-12; anal fin rays:2+5; pectoral and pelvic fins laterally expanded; pelvic fins bases united; anus near the middle way between pelvic fin end and anal fin origin; caudal fin forked, lower lobe slightly longer than upper. Dorsal fin origin slightly behind pelvic fin origin. Greenish and blueish, irregularly dark blotches along back. Black stripes on dorsal and caudal fins. Resemble to H. formosanum, and can be distinguished by the united pelvic fin base and slender caudal peduncle of H. taitungensis.
Habitats:    Primary freshwater fish, lives in moderately fast running water of high and middle elevation. Benthic. Polyphagia, feed on aquatic insects and diatom on rock.
Distribution:    Endemic to eastern portion of Central Mountain Range (CMR) of Taiwan. Presently known from branches at high elevation of Hualien River, Hsiukuluan River and Peinan River.



Text and images are provided by The Fish Datebase of Taiwan (Biodiversity Research Center, Academia Sinica, Taiwan)