Anatina smithi Preston, 1905 accepted as Laternula navicula (Reeve, 1863) (original description)
Callista (Callocardia) birtsi Preston, 1915 accepted as Aphrodora birtsi (Preston, 1905) (original description)
Cancellaria exquisita Preston, 1905 accepted as Fusiaphera macrospira (A. Adams & Reeve, 1850) (original description)
Cerithiopsis abjecta Preston, 1905 (original description)
Cerithiopsis brunneoflavida Preston, 1905 (original description)
Cerithiopsis orientalis Preston, 1905 (original description)
Clavatula gaylordae Preston, 1905 accepted as Paradrillia inconstans prunulum Melvill & Standen, 1901 (original description)
Columbella (Mitrella) multistriata Preston, 1905 accepted as Aesopus multistriatus (Preston, 1905) (original description)
Cultellus (Ensiculus) maculatus Preston, 1905 accepted as Ensiculus maculatus (Preston, 1905) (original description)
Diala polita Preston, 1905 accepted as Diala semistriata (R. A. Philippi, 1849) (original description)
Diala semipellucida Preston, 1905 accepted as Alaba semipellucida (Preston, 1905) (original description)
Eulima exasperata Preston, 1905 accepted as Melanella exasperata (Preston, 1905) (original description)
Eulima indica Preston, 1905 accepted as Melanella indica (Preston, 1905) (original description)
Fenella purpureoapicata Preston, 1905 accepted as Finella purpureoapicata Preston, 1905 (original description)
Gastrana (Metis) bridgmani Preston, 1905 accepted as Leporimetis coarctata (R. A. Philippi, 1845) (original description)
Gena ziczac Preston, 1905 accepted as Stomatella ziczac (Preston, 1905) (original description)
Mangilia (Clathurella) carnicolor Preston, 1905 accepted as Clathurella carnicolor (Preston, 1905) (original description)
Mangilia (Cythara) brunneolineata Preston, 1905 accepted as Gingicithara notabilis (E. A. Smith, 1888) (original description)
Mangilia (Glyphostoma) cazioti Preston, 1905 accepted as Eucithara cazioti (Preston, 1905) (original description)
Mangilia (Glyphostoma) ecolorata Preston, 1905 (original description)
Mangilia mangeri Preston, 1905 (original description)
Pyramidella (Actaeopyramis) ceylanica Preston, 1905 accepted as Kleinella ceylanica (Preston, 1905) (original description)
Pyramidella (Actaeopyramis) suavissima Preston, 1905 accepted as Pyramidella suavissima Preston, 1905 (original description)
Pyramidella (Actaeopyramis) sykesi Preston, 1905 (original description)
Pyramidella (Mormula) humilis Preston, 1905 accepted as Quirella humilis (Preston, 1905) (original description)
Pyramidella (Oscilla) mirabilis Preston, 1905 accepted as Oscilla mirabilis (Preston, 1905) (original description)
Pyramidella (Oscilla) suburbana Preston, 1905 accepted as Oscilla suburbana (Preston, 1905) (original description)
Retusa serendibense Preston, 1905 (original description)
Rissoina (Moerchiella) lankaensis Preston, 1905 accepted as Rissoina antoni Schwartz von Mohrenstern, 1860 accepted as Moerchiella antoni (Schwartz von Mohrenstern, 1860) (original description)
Rissoina (Rissolina) filicosta Preston, 1905 represented as Rissoina filicostata Preston, 1905 (original description)
Rissoina delicatula Preston, 1905 (original description)
Rissoina oscitans Preston, 1905 accepted as Iravadia delicata (R. A. Philippi, 1849) accepted as Pseudonoba delicata (R. A. Philippi, 1849) (original description)
Rissoina pellucida Preston, 1905 accepted as Eatoniella prestoni Ponder & Yoo, 1978 (original description)
Turbonilla coeni Preston, 1905 (original description)
Turbonilla princeps Preston, 1905 accepted as Terenolla pygmaea (Hinds, 1844) accepted as Myurella pygmaea (Hinds, 1844) (original description)
Turbonilla sinhila Preston, 1905 (original description)

Andaman and Nicobar Islands for Menestho acuminata Preston, 1908 
Sri Lankan Exclusive Economic Zone for Anatina smithi Preston, 1905 
Sri Lankan Exclusive Economic Zone for Callista (Callocardia) birtsi Preston, 1915 
Sri Lankan Exclusive Economic Zone for Cancellaria exquisita Preston, 1905 
Sri Lankan Exclusive Economic Zone for Cerithiopsis abjecta Preston, 1905 
Sri Lankan Exclusive Economic Zone for Cerithiopsis brunneoflavida Preston, 1905 
Sri Lankan Exclusive Economic Zone for Cerithiopsis orientalis Preston, 1905 
Sri Lankan Exclusive Economic Zone for Chrysallida (Mormula) humilis (Preston, 1905) 
Sri Lankan Exclusive Economic Zone for Clavatula gaylordae Preston, 1905 
Sri Lankan Exclusive Economic Zone for Columbella (Mitrella) multistriata Preston, 1905 
Sri Lankan Exclusive Economic Zone for Cultellus (Ensiculus) maculatus Preston, 1905 
Sri Lankan Exclusive Economic Zone for Diala polita Preston, 1905 
Sri Lankan Exclusive Economic Zone for Diala semipellucida Preston, 1905 
Sri Lankan Exclusive Economic Zone for Eulima exasperata Preston, 1905 
Sri Lankan Exclusive Economic Zone for Eulima indica Preston, 1905 
Sri Lankan Exclusive Economic Zone for Fenella purpureoapicata Preston, 1905 
Sri Lankan Exclusive Economic Zone for Gastrana (Metis) bridgmani Preston, 1905 
Sri Lankan Exclusive Economic Zone for Mangilia (Clathurella) carnicolor Preston, 1905 
Sri Lankan Exclusive Economic Zone for Mangilia (Cythara) brunneolineata Preston, 1905 
Sri Lankan Exclusive Economic Zone for Mangilia (Glyphostoma) cazioti Preston, 1905 
Sri Lankan Exclusive Economic Zone for Mangilia (Glyphostoma) ecolorata Preston, 1905 
Sri Lankan Exclusive Economic Zone for Mangilia mangeri Preston, 1905 
Sri Lankan Exclusive Economic Zone for Pyramidella (Actaeopyramis) suavissima Preston, 1905 
Sri Lankan Exclusive Economic Zone for Pyramidella (Actaeopyramis) sykesi Preston, 1905 
Sri Lankan Exclusive Economic Zone for Pyramidella (Mormula) humilis Preston, 1905 
Sri Lankan Exclusive Economic Zone for Pyramidella (Oscilla) mirabilis Preston, 1905 
Sri Lankan Exclusive Economic Zone for Pyramidella (Oscilla) suburbana Preston, 1905 
Sri Lankan Exclusive Economic Zone for Retusa serendibense Preston, 1905 
Sri Lankan Exclusive Economic Zone for Rissoina delicatula Preston, 1905 
Sri Lankan Exclusive Economic Zone for Rissoina oscitans Preston, 1905 
Sri Lankan Exclusive Economic Zone for Turbonilla coeni Preston, 1905 
Sri Lankan Exclusive Economic Zone for Turbonilla princeps Preston, 1905 
Sri Lankan Exclusive Economic Zone for Turbonilla sinhila Preston, 1905 

 Additional information

 for Rissoina delicatula Preston, 1905

type figures Rissoina delicatula Preston, 1905 [p. 5; plate I figs. 18-18a]  [details]

 New combination

 for Ensiculus maculatus (Preston, 1905)

New combination herein because Cultellus (Ensiculus) = Ensiculus [details]