Family Synbranchidae Bonaparte 1835

Catremia Rafinesque 1815:93 [ref. 3584] (subfamily)? Synbranchus [no stem of the type genus, not available, Article 11.7.1.1]

Synbranchini Bonaparte 1835:[22] [ref. 32242] (subfamily) Synbranchus [genus inferred from the stem, Article 11.7.1.1; stem changed to Symbranch- by Günther 1870:12 [ref. 1995] based on Symbranchus; senior objective synonym of Flutidae Jordan 1923]

Ophicardides McClelland 1844:155, 159 [ref. 2928] (no family-group name)

Pneumobranchoidei [Pneumabranchoidei] Bleeker 1859d:XXXII [ref. 371] (family) Pneumabranchus

Amphipnoina Günther 1870:12, 13 [ref. 1995] (group) Amphipnous [senior objective synonym of Cuchiidae McAllister 1968]

Monopteridae Cope 1871:455 [ref. 920] (family) Monopterus

Flutidae Jordan 1923a:129 [ref. 2421] (family) Fluta [junior objective synonym of Synbranchini Bonaparte 1835, invalid, Article 61.3.2]

Typhlosynbranchinae Pellegrin 1923:215 [ref. 3403] (subfamily) Typhlosynbranchus

Cuchiidae ‘Norman’ 1957:604 [ref. 31890] (family) Cuchia [hand written correction by ??; not available]

Cuchiidae McAllister 1968:159 [ref. 26854] (family) Cuchia [name only, but bibliographic reference to the description by Day 1878:656 [ref. 1080] Article 13.1.2; junior objective synonym of Amphipnoina Günther 1870, invalid, Article 61.3.2]

Macrotreminae Rosen & Greenwood 1976:49 [ref. 7094] (subfamily) Macrotrema [emended to Macrotrematinae by Bailey & Gans 1998:2 [ref. 23296]]