Rhinogobius, Gill, 1859

Wang, Shen-Chih & Chen, I-Shiung, 2022, A new freshwater goby, Rhinogobius lianchengensis (Teleostei: Gobiidae) from the Minjiang river basin, Fujian Province, China, Zootaxa 5189 (1), pp. 45-56 : 53

Key to all nominal species of Rhinogobius with longitudinal infraorbital papillae from Fujian Province, China

1a Pectoral fin rays usually 19–20; predorsal scales 10–16.................................. R. leavelli (Hanjiang basin)

1b Pectoral fin rays no more than 18; predorsal scales 0–7....................................................... 2

2a Cheek with many rounded spots, branchiostegal membrane with several parallel red stripes in male............................................................................................ R. reticulatus (Minjiang river basin)

2b Cheek and branchiostegal membrane without such marks..................................................... 3

3a Head canal pore ω1 present, pectoral fin base with reticulate orange pattern in male... R. xianshueiensis (Mulan river basin)

3b Head canal pore ω1 absent, pectoral fin base without such pattern.............................................. 4

4a Infraorbital stripe short and not extending ventrally to edge of upper lip in male................................... 5

4b Infraorbital stripe long and extending ventrally to edge of upper lip or lower edge of cheek in male.................... 6

5a Pectoral fin rays modally 17; pectoral fin base with one black bar; 27 vertebrae......... R. longyanensis (Julongjiang basin)

5b Pectoral fin rays modally 16; pectoral fin base with two rounded black bars; 28 vertebrae... R. ponkouensis (Hanjiang basin)

6a Opercle unmarked; longitudinal scale rows 28–31........................................................... 7

6b Opercle with net-like, reticulate deep brown marks; longitudinal scale rows 33–34................................................................................................ R. lianchengensis n. sp. (Minjiang river basin)

7a Predorsal scales 3–6; 26 vertebrae....................................................................... 8

7b Predorsal scales 0–2; 27 vertebrae............................................. R. changtingensis (Hanjiang basin)

8a Cheek with 2 brown bars; the vertical infraorbital red stripe extending to edge of upper lip in male........................................................................................... R. rubrolineatus (Minjiang river basin)

8b Cheek with 4-5 brown bars, the brown infraorbital marks as arrow shape curve in male.... R. sagittus (Minjiang river basin)