Species that contain: Cotylopus and punctatus [ 2 ] records

multipunctatum, Sicydium Regan [C. T.] 1906:11, Pl. 1 (fig. 1) [Biologia Centrali-Americana Part 93; ref. 15703] Tequixistlan, Oaxaca, Mexico. Holotype (unique): BMNH 1906.6.1.421. Replacement name for Cotylopus punctatus Regan 1905, secondarily preoccupied by Sicydium punctatum Perugia 1896 when both are in Sicydium. •Valid as Sicydium multipunctatum Regan 1906 -- (Espinosa Pérez et al. 1993:75 [ref. 22290], Bussing 1996:823 [ref. 22890], Castro-Aguirre et al. 1999:427 [ref. 24550], Kullander in Reis et al. 2003:662 [ref. 27061], Nelson et al. 2004:173 [ref. 27807], Miller 2006:400 [ref. 28615], Scharpf 2009:14 [ref. 30400], Matamoros et al. 2009:25 [ref. 31241], Van Tassell 2011:145 [ref. 31732], McMahan et al. 2013:453 [ref. 32422], Page et al. 2013:179 [ref. 32708], González-Murcia et al. 2019:293 [ref. 36544]). •Synonym of Sicydium salvini Ogilvie-Grant 1884 -- (Chabarria & Pezold 2013:354 [ref. 39067]). Replacement Name. Current status: Synonym of Sicydium salvini Ogilvie-Grant 1884. Oxudercidae: Sicydiinae. Habitat: freshwater, brackish, marine.

punctatus, Cotylopus Regan [C. T.] 1905:362 [Annals and Magazine of Natural History (Series 7) v. 16 (no. 93) (art. 41); ref. 18456] Tequixistlan, Oaxaca, Mexico. Holotype (unique): BMNH 1906.6.1.421. Subjectively invalid; secondarily preoccupied in Sicydium by Sicydium punctatum Perugia 1896, replaced by Sicydium multipunctatum Regan 1906. •Synonym of Sicydium multipunctatum Regan 1906 -- (Castro-Aguirre et al. 1999:427 [ref. 24550], Kullander in Reis et al. 2003:662 [ref. 27061]). •Synonym of Sicydium salvini Ogilvie-Grant 1884. 2°Homonym. Current status: Synonym of Sicydium salvini Ogilvie-Grant 1884. Oxudercidae: Sicydiinae. Habitat: freshwater, brackish, marine.