circularis, Synchiropus (Synchiropus) Fricke [R.] 1984:68, Fig. 1 [Annali del Museo Civico di Storia Naturale `Giacomo Doria' v. 85; ref. 8161] Beach Cave Cove, northwest of Tinian Town, Tinian, Marianas Islands, 14°59.7'N, 145°36.2'E. Holotype: USNM 267390 [ex Univ. Guam 5130]. Paratypes: USNM 267391 (1). Other material: BPBM 29653 (1); UGM 5130 (1), 5764 (1). May use Synchropus or Foetorepus; authors differ. •Valid as Synchiropus circularis Fricke 1984 -- (Randall et al. 1997:524 [ref. 25919], Myers 1999:232 [ref. 23965], Fricke 2000:27 [ref. 25197], Fricke 2001:3555 [ref. 26292], Fricke 2002:54 [ref. 26547], Fricke 2006:12 [ref. 28872], Allen & Erdmann 2012:850 [ref. 31980], Fricke et al. 2014:154 [ref. 33932], Fricke 2016:50 [ref. 34468], Fricke 2016:8 [ref. 34659], Fricke 2017:183 [ref. 35548]). Current status: Valid as Synchiropus circularis Fricke 1984. Callionymidae. Distribution: Western Pacific: Malaysia, Indonesia, New Guinea, Philippines, Mariana Islands and Chesterfield Islands. Habitat: marine.