Astrocoenia martini Smith, 1927 † (original description)
Halobia cordillerana J. P. Smith, 1927 † (original description)
Halobia ornatissima J. P. Smith, 1927 † (original description)
Halobia septentrionalis J. P. Smith, 1927 † (original description)
Halomitra triadica Smith, 1927 † (original description)
Heptastylis Frech, 1890 † (additional source)
Heptastylis aquilae Smith, 1927 † (original description)
Heptastylis oregonensis Smith, 1927 † (original description)
Isastrea parva Smith, 1927 † (original description)
Monotis alaskana J. P. Smith, 1927 † (original description)
Myophoria beringiana J. P. Smith, 1927 † (original description)
Myophoria brockensis J. P. Smith, 1927 † (original description)
Myophoria humboldtensis J. P. Smith, 1927 † (original description)
Pecten (Entolium) ceruleus J. P. Smith, 1927 † accepted as Entolium ceruleum (J. P. Smith, 1927) † (original description)
Pecten (Entolium) pittensis J. P. Smith, 1927 † accepted as Camptonectes (Annulinectes) pittensis (J. P. Smith, 1927) † represented as Camptonectes pittensis (J. P. Smith, 1927) † (original description)
Pecten (Entolium) yukonensis J. P. Smith, 1927 † accepted as Entolium yukonense (J. P. Smith, 1927) † (original description)
Pecten deformis Gabb, 1864 † (additional source)
Spongiomorpha (Heptastylopsis) Frech, 1890 † (additional source)
Spongiomorpha (Heptastylopsis) dendriformis Smith, 1927 † (original description)
Spongiomorpha (Heptastylopsis) gibbosa Frech, 1890 † (additional source)
Spongiomorpha (Heptastylopsis) ramosa Frech, 1890 † (additional source)
Spongiomorpha (Heptastylopsis) tenuis Smith, 1927 † (original description)
Stromatomorpha Frech, 1890 † (additional source)
Stromatomorpha californica Smith, 1927 † (original description)