Species that contain: Sicyopterus and crassus [ 1 ] records

crassus, Sicyopterus Herre [A. W. C. T.] 1927:307, Pl. 24 (fig. 2) [Monographs, Bureau of Science Manila Monogr. 23; ref. 2104] Craan River, southern coast of Cotabato Province, Mindanao, Philippines. Syntypes: BSMP 10619 and 26974-77 (5) destroyed, seen by Koumans. Type catalog: Koumans 1940:193 [ref. 2676]. •Synonym of Sicyopterus cynocephalus (Valenciennes 1837) -- (Kottelat 2013:427 [ref. 32989], Keith et al. 2015:86 [ref. 34328]). Current status: Synonym of Sicyopterus cynocephalus (Valenciennes 1837). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.