Opinions from E. Vredenburg 1921
- 'Bathytoma belongs to Pleurotomidae'
- 'Brachytoma was reranked as Drillia (Brachytoma) and belongs to Drillia'
- 'Clathurella was reranked as Mangilia (Clathurella) and belongs to Mangilia'
- 'Clavatula belongs to Pleurotomidae'
- 'Crassispira was reranked as Drillia (Crassispira) and belongs to Drillia'
- 'Daphnella belongs to Pleurotomidae'
- 'Daphnella (Raphitoma) birmanica belongs to Daphnella (Raphitoma)'
- 'Drillia belongs to Pleurotomidae'
- 'Drillia (Brachytoma) annandalei belongs to Drillia (Brachytoma)'
- 'Drillia (Brachytoma) buddhaica belongs to Drillia (Brachytoma)'
- 'Drillia (Brachytoma) convexa belongs to Drillia (Brachytoma)'
- 'Drillia (Brachytoma) gautama belongs to Drillia (Brachytoma)'
- 'Drillia (Brachytoma) pinfoldi belongs to Drillia (Brachytoma)'
- 'Drillia (Brachytoma) reticulata belongs to Drillia (Brachytoma)'
- 'Drillia (Brachytoma) sarasvati belongs to Drillia (Brachytoma)'
- 'Drillia (Brachytoma) yabei belongs to Drillia (Brachytoma)'
- 'Drillia (Crassispira) birmanica belongs to Drillia (Crassispira)'
- 'Drillia (Crassispira) constricta belongs to Drillia (Crassispira)'
- 'Drillia (Crassispira) dalabeensis belongs to Drillia (Crassispira)'
- 'Drillia (Crassispira) iravadica belongs to Drillia (Crassispira)'
- 'Drillia (Crassispira) mindegyiensi belongs to Drillia (Crassispira)'
- 'Drillia (Crassispira) myaukmigonensis belongs to Drillia (Crassispira)'
- 'Drillia (Crassispira) subbataviana belongs to Drillia (Crassispira)'
- 'Drillia (Crassispira) subpromensis belongs to Drillia (Crassispira)'
- 'Drillia (Crassispira) tittabweensis belongs to Drillia (Crassispira)'
- 'Drillia decemplicata belongs to Drillia'
- 'Drillia dormitor belongs to Drillia'
- 'Drillia indica belongs to Drillia'
- 'Drillia pulcherrima belongs to Drillia'
- 'Hemipleurotoma was reranked as Pleurotoma (Hemipleurotoma) and belongs to Pleurotoma'
- 'Mangilia belongs to Pleurotomidae'
- 'Mangilia (Clathurella) martini belongs to Mangilia (Clathurella)'
- 'Mangilia elegantissima belongs to Mangilia'
- 'Perrona was reranked as Clavatula (Perrona) and belongs to Clavatula'
- 'Pleurotoma belongs to Pleurotomidae'
- 'Pleurotoma (Drillia) bataviana belongs to Pleurotoma (Drillia)' according to Martin 1895
- 'Pleurotoma (Drillia) bataviana is recombined as Drillia (Crassispira) bataviana'
- 'Pleurotoma (Drillia) tjemoroensis is recombined as Drillia (Brachytoma) tjemoroensis'
- 'Pleurotoma (Gemmula) belongs to Pleurotoma'
- 'Pleurotoma (Hemipleurotoma) humilis irvadica belongs to Pleurotoma (Hemipleurotoma) humilis'
- 'Pleurotoma (Hemipleurotoma) iris belongs to Pleurotoma (Hemipleurotoma)'
- 'Pleurotoma (Hemipleurotoma) singuensis belongs to Pleurotoma (Hemipleurotoma)'
- 'Pleurotoma (Pleurofusia) is reassigned into Surcula'
- 'Pleurotoma albinoides belongs to Pleurotoma' according to Martin 1883
- 'Pleurotoma albinoides belongs to Pleurotoma'
- 'Pleurotoma humilis belongs to Pleurotoma' according to Koenen 1890
- 'Pleurotoma humilis is recombined as Pleurotoma (Hemipleurotoma) humilis'
- 'Raphitoma was reranked as Daphnella (Raphitoma) and belongs to Daphnella'
- 'Surcula belongs to Pleurotomidae'
- 'Surcula (Pleurofusia) fusus belongs to Surcula (Pleurofusia)'
- 'Surcula (Pleurofusia) phasma belongs to Surcula (Pleurofusia)'
- 'Surcula birmanica belongs to Surcula'
- 'Surcula iravadica belongs to Surcula'
- 'Surcula sethurame belongs to Surcula'
- 'Surcula thangaensis belongs to Surcula'