Bairdia bartholomewensis Stewart & Hendrix, 1945 † (original description)
Bairdia delawarensis Stewart & Hendrix, 1945 † (original description)
Bairdia lenticulata Stewart & Hendrix, 1945 † accepted as Acanthoscapha lenticulata (Stewart & Hendrix, 1945) Berdan, 1960 † (original description)
Bairdia pseudomagna Stewart & Hendrix, 1945 † accepted as Polenovia pseudomagna (Stewart & Hendrix, 1945) Lethiers & Casier, 1995 † (original description)
Bairdia unica Stewart & Hendrix, 1945 † (original description)
Franklinella Stewart & Hendrix, 1945 † (original description)
Franklinella novecosta Stewart & Hendrix, 1945 † accepted as Ungerella novecosta (Stewart & Hendrix, 1945) Sylvester-Bradley, 1961 † (original description)
Franklinella novecosta novecosta Stewart & Hendrix, 1945 † accepted as Ungerella novecosta novecosta (Stewart & Hendrix, 1945) Sylvester-Bradley, 1961 † (original description)
Franklinella novecosta obesa Stewart & Hendrix, 1945 † accepted as Ungerella novecosta obesa (Stewart & Hendrix, 1945) † (original description)
Franklinella septecosta Stewart & Hendrix, 1945 † (original description)
Richterina symmetrica Stewart & Hendrix, 1945 † represented as Richterina (Volkina) symmetrica (Stewart & Hendrix, 1945) Rabien, 1954 † (original description)
Ropolonellus dubius Stewart & Hendrix, 1945 † (original description)
Senescella Stewart & Hendrix, 1945 † (original description)
Senescella crassimarginata Stewart & Hendrix, 1945 † accepted as Plagionephrodes crassimarginata (Stewart & Hendrix, 1945) Lethiers, 1981 † (original description)
Senescella longaeva Stewart & Hendrix, 1945 † (original description)
Senescella longaeva deflecta Stewart & Hendrix, 1945 † (original description)
Senescella longaeva longaeva Stewart & Hendrix, 1945 † (original description)
Senescella marginaspinata Stewart & Hendrix, 1945 † (original description)
Thrallella Stewart & Hendrix, 1945 † (original description)
Thrallella (Thrallella) Stewart & Hendrix, 1945 † (original description)
Thrallella (Thrallella) phaseolina Stewart & Hendrix, 1945 † represented as Thrallella phaseolina Stewart & Hendrix, 1945 † (original description)
Thrallella mimica Stewart & Hendrix, 1945 † (original description)
Thrallella phaseolina Stewart & Hendrix, 1945 † (original description)
Thrallella susanola Stewart & Hendrix, 1945 † (original description)
Ungerella novecosta novecosta (Stewart & Hendrix, 1945) Sylvester-Bradley, 1961 † (original description)
Ungerella novecosta obesa (Stewart & Hendrix, 1945) † (original description)