Carcinonemertes Coe, 1902 (original description)
Ecitonetes Brues, 1902 (original description)
Lyperostomum Pratt, 1912 accepted as Lyperosomum Looss, 1899 (original description)
Ostiolum Pratt, 1902 (original description)
Renifer Pratt, 1902 (original description)
Spaerostoma Pratt, 1902 accepted as Sphaerostoma Rudolphi, 1809 (original description)
Sperostoma Pratt, 1902 accepted as Sphaerostoma Rudolphi, 1809 (original description)
Xanionotum Brues, 1902 (original description)