Rhinogobius similis Gill, 1859

Hui, Tan Heok, Peng, Kelvin Lim Kok, Huan, Liew Jia, Wei, Low Bi, Hing, Rayson Lim Bock, Beng, Jeffrey Kwik Teik & Yeo, Darren C. J., 2020, The non-native freshwater fishes of Singapore: an annotated compilation, Raffles Bulletin of Zoology 68, pp. 150-195 : 182-183

Rhinogobius similis Gill

( Fig. 108 , EAs[SPC])

References. Alfred, 1966a (as Stigmatogobius poicilosoma ); Johnson, 1973a, 1973b (as Stigmatogobius poicilosoma ); Lim & Ng, 1990 (as Stigmatogobius poecilosoma ); Munro, 1990 (as Stigmatogobius poicilosoma ); Ng, 1991 (as Stigmatogobius poecilosoma ); Lim et al., 1995 (as Rhinogobius cf. giurinus ); Subaraj et al., 1995 (as Rhinogobius cf. giurinus ); Ng & Lim, 1997a, 1997b (as Rhinogobius giurinus ); Larson & Lim, 2005 (as Rhinogobius giurinus ); Larson et al., 2008 (as Rhinogobius giurinus ); Baker & Lim, 2008, 2012 (as Rhinogobius giurinus ); Ng HH & Tan HH, 2010 (as Rhinogobius giurinus ); Tan & Lim, 2011 (as Rhinogobius giurinus ); Lim et al., 2013 (as Rhinogobius giurinus ); Tan, 2014e, 2014g (as Rhinogobius giurinus ); Kwik & Yeo, 2015 (as Rhinogobius giurinus ); Ho et al., 2016 (as Rhinogobius giurinus ); Larson et al., 2016 (as Rhinogobius giurinus ); Li et al., 2016 (as Rhinogobius giurinus ).

Distribution. MacRitchie Reservoir ( Munro, 1990); Upper Seletar Reservoir ( Munro, 1990; Larson & Lim, 2005; Ng &

Lim, 1997b; Ng HH & Tan HH, 2010; Tan, 2014e, 2014g); Banir ( Munro, 1990; Tan, 2014g); MacRitchie Reservoir ( Subaraj et al., 1995); Central Catchment Nature Reserve ( Ng & Lim, 1997a); Jurong Road area ( Ng & Lim, 1997a); Singapore Botanic Gardens ( Ng & Lim, 1997a); Jurong Lake ( Ng HH & Tan HH, 2010); Upper Peirce Reservoir ( Ng HH & Tan HH, 2010); Lower Peirce Reservoir ( Lim et al., 1995; Ng & Lim, 1997b; Ng HH & Tan HH, 2010); Lower Seletar Reservoir ( Ng HH & Tan HH, 2010); Murai Reservoir ( Ng HH & Tan HH, 2010); Poyan Reservoir ( Ng HH & Tan HH, 2010); Tengah Reservoir ( Ng HH & Tan HH, 2010); Banir (Tan & Lim, 2011); Kranji Marsh ( Lim et al., 2013); Central Catchment Nature Reserve — Nee Soon Swamp Forest ( Ho et al., 2016; Li et al., 2016); Bishan Park (unpublished data).

Remarks. Alfred’s (1966a) material of Stigmatogobius poicilosoma consisted of three taxa, viz., Eugnathogobius siamensis , Pseudogobiopsis oligactis (recently rediscovered in Singapore; Tan & Lim, 2011) and Rhinogobius similis ( Ng & Lim, 1997b; Larson et al., 2008, 2016). It is a well-established non-native species in Singapore that was accidentally introduced with fish fry imported from China ( Larson et al., 2016).

The taxonomic status of R. giurinus was resolved recently and is considered junior to R. similis ( Suzuki et al., 2015) .

Figures

Fig. 108. Rhinogobius similis, 34.8 mm SL male, Upper Seletar Reservoir spillway.