crassus, Callogobius McKinney [J. F.] & Lachner [E. A.] 1984:627, Fig. 1 [Proceedings of the Biological Society of Washington v. 97 (no. 3); ref. 21192] Southern tip of Massas Island, Papua-New Guinea, 5°10'18"S, 145°51'24"E, depth 0-18 meters. Holotype: USNM 220088. Paratypes: AMNH 51499 (3); BPBM 18535 (1); USNM 210005 (1), 220086-87 (1, 1). •Valid as Callogobius crassus McKinney & Lachner 1984 -- (Goren et al. 1991:299 [ref. 19765], Chen & Shao 2000:459 [ref. 24425], Nakabo 2000:1168 [ref. 25182], Larson & Murdy 2001:3595 [ref. 26293], Nakabo 2002:1168 [ref. 26193], Allen & Adrim 2003:57 [ref. 26830], Dimara et al. 2010:621 [ref. 31108], Allen & Erdmann 2012:964 [ref. 31980], Delventhal & Mooi 2013:156 [ref. 32677], Delventhal & Mooi 2014:146 [ref. 33337], Fujiwara et al. 2021:261 [ref. 38707], Parenti 2021:112 [ref. 38603], Delventhal & Mooi 2023:461 [ref. 40434]). Current status: Valid as Callogobius crassus McKinney & Lachner 1984. Gobiidae: Gobiinae. Distribution: Western Pacific: Indonesia, Philippines and Papua New Guinea east to Society Islands. Habitat: marine.