Traits Taxon list
Copiatestes filiferus (Leuckart in Sars, 1885) Gibson & Bray, 1977
Copiatestes thyrsitae Crowcroft, 1948
Syncoelium cypseluri Yamaguti, 1970
Syncoelium filiferum (Leuckart in Sars, 1885) Guberlet, 1934 accepted as Copiatestes filiferus (Leuckart in Sars, 1885) Gibson & Bray, 1977
Syncoelium katuwo Yamaguti, 1938 accepted as Copiatestes filiferus (Leuckart in Sars, 1885) Gibson & Bray, 1977
Syncoelium priacanthi Byrd, 1962 accepted as Copiatestes filiferus (Leuckart in Sars, 1885) Gibson & Bray, 1977
Syncoelium ragazzii (Setti, 1897) Looss, 1899
Syncoelium regaleci Villarreal & Dailey, 1993
Syncoelium spathulatum Coil & Kuntz, 1963
Syncoelium thyrsitae (Crowcroft, 1948) accepted as Copiatestes thyrsitae Crowcroft, 1948
Syncoelium vermilionense Curran & Overstreet, 2000
Syncoelium vermilionensis Curran & Overstreet, 2000 accepted as Syncoelium vermilionense Curran & Overstreet, 2000