Amaroucium constrictum Sluiter, 1900 accepted as Aplidium constrictum (Sluiter, 1900) (original description)
Cynthia lutea Sluiter, 1900 accepted as Pyura lutea (Sluiter, 1900) (original description)
Cynthia pulla Sluiter, 1900 accepted as Pyura pulla (Sluiter, 1900) (original description)
Cynthia subuculata Sluiter, 1900 accepted as Pyura subuculata (Sluiter, 1900) (original description)
Cynthia trita Sluiter, 1900 accepted as Pyura trita (Sluiter, 1900) (original description)
Didemnoides lambitum Sluiter, 1900 accepted as Didemnum lambitum (Sluiter, 1900) (original description)
Distoma circumvallatum Sluiter, 1900 accepted as Eudistoma circumvallatum (Sluiter, 1900) (original description)
Distoma fusca Sluiter, 1900 (original description)
Distoma laysani Sluiter, 1900 accepted as Eudistoma laysani (Sluiter, 1900) (original description)
Distoma parva Sluiter, 1900 accepted as Eudistoma laysani (Sluiter, 1900) (original description)
Ecteinascidia diligens Sluiter, 1900 (original description)
Leptoclinum asperum Sluiter, 1900 accepted as Didemnum tenue (Herdman, 1886) (original description)
Leptoclinum scidula Sluiter, 1900 accepted as Didemnum tuberatum (Nott, 1892) (original description)
Microcosmus hirsutus Sluiter, 1900 (original description)
Microcosmus miniaceus Sluiter, 1900 (original description)
Molgula inversa Sluiter, 1900 accepted as Paramolgula filholi (Pizon, 1898) (original description)
Polyclinum meridianum Sluiter, 1900 (original description)
Psammaplidium ambiguum Sluiter, 1900 accepted as Aplidium foliaceum (Sluiter, 1900) (original description)
Psammaplidium circumvolutum Sluiter, 1900 accepted as Aplidium circumvolutum (Sluiter, 1900) (original description)
Psammaplidium foliaceum Sluiter, 1900 accepted as Aplidium foliaceum (Sluiter, 1900) (original description)
Psammaplidium stelliferum Sluiter, 1900 accepted as Aplidium stelliferum (Sluiter, 1900) (original description)
Styela argillacea Sluiter, 1900 accepted as Cnemidocarpa bicornuta (Sluiter, 1900) (original description)
Styela bicornuta Sluiter, 1900 accepted as Cnemidocarpa bicornuta (Sluiter, 1900) (original description)
Styela cerea Sluiter, 1900 accepted as Asterocarpa humilis (Heller, 1878) (original description)
Styela nisiotis Sluiter, 1900 accepted as Cnemidocarpa nisiotis (Sluiter, 1900) (original description)