Hemimyzon, Regan, 1911

Chen, I-Shiung & Yeh, Ming-Fon, 2024, Hemimyzon luae, a new species of balitorid fish (Teleostei: Baltioridae) from the Tzengwen River basin, southern Taiwan, Zootaxa 5550 (1), pp. 278-286 : 284

An artificial key to 5 endemic species Hemimyzon in Taiwan:

1a Dorsal fin rays 3+7......................................................................... H. formosanus

1b Dorsal fin rays 3+8.................................................................................... 2

2a Pelvic fin rays 17; inner gap between pelvic fins very narrow....................................... H. taitungensis

2b Pelvic fin rays no more than 15; inner gap between pelvic fins wider than......................................... 3

3a Pelvic fin simple rays modally 3, total rays always 11.............................................. H. luae n. sp.

3b Pelvic fin simple rays modally 4, total rays always 14........................................................ 4

4a Pectoral fin rays 24; lateral-line scales 78–80; the distance of pelvic rear tip to anus about 3 times to that of anus to anal fins.............................................................................................. H. sheni

4b Pectoral fin rays modally 22; lateral-line scales 69–72; the distance of pelvic rear tip to anus about 1.2–1.8 times to that of anus to anal fins............................................................................... H. yushanensis