Clava nana Motz-Kossowska, 1905 (original description)
Cordylophora annulata Motz-Kosowska, 1905 accepted as Pachycordyle napolitana Weismann, 1883 (original description)
Cordylophora pusilla Motz-Kossowska, 1905 accepted as Pachycordyle pusilla (Motz-Kossowska, 1905) (original description)
Eudendrium calceolatum Motz-Kossowska, 1905 (original description)
Eudendrium fragile Motz-Kossowska, 1905 accepted as Eudendrium album Nutting, 1898 (original description)
Hydractinia aculeata (Wagner, 1833) (additional source)
Hydractinia pruvoti Motz-Kossowska, 1905 accepted as Podocoryna pruvoti (Motz-Kossowska, 1905) (original description)
Perigonimus schneideri Motz-Kossowska, 1905 accepted as Perarella schneideri (Motz-Kossowska, 1905) (original description)
Pruvotella Motz-Kossowska, 1905 accepted as Garveia Wright, 1859 (original description)
Pruvotella grisea Motz-Kossowska, 1905 accepted as Garveia grisea (Motz-Kossowska, 1905) (original description)

Balearic Islands for Hydractinia pruvoti Motz-Kossowska, 1905 
Banyuls-sur-Mer for Clava nana Motz-Kossowska, 1905 
Banyuls-sur-Mer for Cordylophora pusilla Motz-Kossowska, 1905 
Banyuls-sur-Mer for Eudendrium calceolatum Motz-Kossowska, 1905 
Western Mediterranean for Pruvotella grisea Motz-Kossowska, 1905 

 Type locality

 for Clava nana Motz-Kossowska, 1905

Banyuls-sur-Mer, near marine biological station, on Posidonia leaves. [details]

 Type locality

 for Hydractinia pruvoti Motz-Kossowska, 1905

Mediterranean, Balearic Islands; on gastropod shell inhabited by Pagurus striatus Latreille, 1803 (syn of. Dardanus ... [details]

 Type locality

 for Perigonimus schneideri Motz-Kossowska, 1905

Mediterranean, Mallorca, Bay of Pollensa [details]