Askonides Kott, 1962 accepted as Leptoclinides Bjerkan, 1905 (original description)
Askonides coelenteratus Kott, 1962 accepted as Leptoclinides coelenteratus (Kott, 1962) (original description)
Askonides imperfectus Kott, 1962 accepted as Leptoclinides imperfectus (Kott, 1962) (original description)
Didemnum pseudodiplosoma Kott, 1962 accepted as Trididemnum pseudodiplosoma (Kott, 1962) (original description)
Didemnum rottnesti Kott, 1962 (original description)
Didemnum sucosum Kott, 2001 (source of synonymy)
Leptoclinides magnistellus Kott, 2001 (additional source)
Polysyncraton circulum Kott, 1962 (original description)
Polysyncraton discoides Kott, 1962 (original description)
Polysyncraton orbiculum Kott, 1962 (original description)
Trididemnum paracyclops Kott, 1980 (additional source)
Trididemnum spiculatum Kott, 1962 (original description)
Trididemnum vermiforme Kott, 2001 (source of synonymy)

Phillip Island for Trididemnum vermiforme Kott, 2001 
Point Peron for Askonides coelenteratus Kott, 1962 
Rottnest Island for Askonides coelenteratus Kott, 1962 

Holotype AM Y1343, geounit Point Peron, identified as Askonides coelenteratus Kott, 1962
Unknown type AM Y1344, geounit Rottnest Island, identified as Askonides coelenteratus Kott, 1962
Unknown type AM Y1345, geounit Rottnest Island, identified as Askonides coelenteratus Kott, 1962
Unknown type AM Y1347, geounit Rottnest Island, identified as Askonides coelenteratus Kott, 1962
Paratype QM GH5420, geounit Queensland, identified as Leptoclinides constellatus Kott, 2001

 Synonymy

 for Didemnum sucosum Kott, 2001

Kott, 1962: Didemnum spongioides [details]

 Synonymy

 for Trididemnum paracyclops Kott, 1980

Kott, 1962: Trididemnum spiculatum (part, specimen from Heron Island - AM Y1627). [details]

 Synonymy

 for Trididemnum vermiforme Kott, 2001

Kott, 1962: Trididemnum cerebriforme (part specimens from Phillip Island). [details]