Coscinoderma Carter, 1883 (original description)
Coscinoderma lanuginosum Carter, 1883 accepted as Coscinoderma pesleonis (Lamarck, 1814) (original description)
Ectyon clavaeformis Carter, 1883 accepted as Agelas dispar Duchassaing & Michelotti, 1864 (original description)
Ectyon cylindricus Carter, 1883 accepted as Agelas cervicornis (Schmidt, 1870) (original description)
Ectyon flabelliformis Carter, 1883 accepted as Agelas flabelliformis (Carter, 1883) (original description)
Ectyon mauritianus Carter, 1883 accepted as Agelas mauritiana (Carter, 1883) (original description)
Ectyon sparsus var. clavaeformis Carter, 1883 accepted as Agelas dispar Duchassaing & Michelotti, 1864 (original description)
Ectyonopsis Carter, 1883 (original description)
Ectyonopsis ramosa Carter, 1883 (original description)
Leucophloeus Carter, 1883 accepted as Ciocalypta Bowerbank, 1862 (original description)
Leucophloeus compressus Carter, 1883 accepted as Cribrochalina compressa (Carter, 1883) (original description)
Leucophloeus massalis Carter, 1883 accepted as Ciocalypta massalis (Carter, 1883) (original description)
Phakellia ramosa Carter, 1883 accepted as Sigmaxinella ramosa (Carter, 1883) (original description)
Phloeodictyon singaporense Carter, 1883 accepted as Coelocarteria singaporensis (Carter, 1883) (original description)
Phycopsis Carter, 1883 (original description)
Phycopsis fruticulosa Carter, 1883 (original description)
Phycopsis hirsuta Carter, 1883 (original description)
Ptilocaulis Carter, 1883 (original description)
Ptilocaulis gracilis Carter, 1883 accepted as Ptilocaulis walpersii (Duchassaing & Michelotti, 1864) (original description)
Ptilocaulis rigidus Carter, 1883 accepted as Reniochalina rigida (Carter, 1883) (original description)
Theneidae Gray, 1872 (additional source)

Australian Exclusive Economic Zone for Ptilocaulis rigidus Carter, 1883  (doubtful)
Barbados Exclusive Economic Zone for Ectyon flabelliformis Carter, 1883 
Bassian for Phycopsis fruticulosa Carter, 1883 
Caribbean Sea for Ectyon cylindricus Carter, 1883 
Eastern Caribbean for Agelas flabelliformis (Carter, 1883) 
Eastern Caribbean for Ectyon flabelliformis Carter, 1883 
Great Australian Bight for Phycopsis hirsuta Carter, 1883 
Greater Antilles for Ptilocaulis gracilis Carter, 1883 
Leeuwin for Coscinoderma lanuginosum Carter, 1883 
Leeuwin for Leucophloeus compressus Carter, 1883 
Leeuwin for Leucophloeus massalis Carter, 1883 
Malacca Strait for Phloeodictyon singaporense Carter, 1883 
Manning-Hawkesbury for Phakellia ramosa Carter, 1883 
Mascarene Islands for Ectyon mauritianus Carter, 1883 
Southern Australia for Ectyonopis ramosa Carter, 1883 

Lectotype BMNH 1884.4.14.9, geounit Eastern Caribbean, identified as Ectyon flabelliformis Carter, 1883
Holotype BMNH 1954.3.9.116, geounit Mascarene Islands, identified as Ectyon mauritianus Carter, 1883
Holotype BMNH BK 710, geounit Leeuwin, identified as Coscinoderma lanuginosum Carter, 1883

 Distribution

 for Ectyon sparsus var. clavaeformis Carter, 1883

"West Indies", precise type-locality unknown [details]