Anachis crassicostata Cossmann, 1903 † (original description)
Ancilla (Alocospira) tornata Cossmann, 1903 † accepted as Alocospira tornata (Cossmann, 1903) † (original description)
Asthenotoma terebralis Cossmann, 1903 † (original description)
Cancellaria asperella Lamarck, 1822 accepted as Merica asperella (Lamarck, 1822) (additional source)
Cancellaria verbeeki K. Martin, 1895 † accepted as Merica verbeeki (K. Martin, 1895) † (basis of record)
Cassis (Casmaria) bonneti Cossmann, 1903 † accepted as Casmaria bonneti (Cossmann, 1903) † (original description)
Clathurella bicrenata Cossmann, 1903 † (original description)
Cryptospira (Gibberula) cuneata Cossmann, 1903 † accepted as Gibberula cuneata (Cossmann, 1903) † (original description)
Cyllene varians Cossmann, 1903 † accepted as Cyllene fuscata A. Adams, 1851 (original description)
Euthriofusus inopinatus Cossmann, 1903 † (original description)
Latrunculus (Peridipsaccus) occlusus Cossmann, 1903 † accepted as Babylonia occlusa (Cossmann, 1903) † (original description)
Mangilia houdasi Cossmann, 1903 † (original description)
Marginella (Eratoidea) karikalensis Cossmann, 1903 † accepted as Eratoidea karikalensis (Cossmann, 1903) † (original description)
Melongena (Pugilina) octocostata Cossmann, 1903 † accepted as Pugilina octocostata (Cossmann, 1903) † (original description)
Melongena (Pugilina) proteiformis Cossmann, 1903 † accepted as Pugilina proteiformis (Cossmann, 1903) † (original description)
Murex (Muricidea) infratubulatus Cossmann, 1903 † (original description)
Murex (Muricopsis) diarti Cossmann, 1903 † (original description)
Murex bonneti Cossmann, 1903 † accepted as Vokesimurex bonneti (Cossmann, 1903) † (original description)
Nassa (Amycla) dimorpha Cossmann, 1903 † accepted as Nassarius olivaceus (Bruguière, 1789) (original description)
Nassa (Hinia) colpophora Cossmann, 1903 † accepted as Tritia colpophora (Cossmann, 1903) † (original description)
Nassa (Hinia) karikalensis Cossmann, 1903 † accepted as Tritia karikalensis (Cossmann, 1903) † (original description)
Nassa ovum Cossmann, 1903 † (original description)
Persona metableta Cossmann, 1903 † accepted as Distorsio reticularis (Linnaeus, 1758) (original description)
Phos macrostoma Cossmann, 1903 † (original description)
Ranella karikalensis Cossmann, 1903 † accepted as Gyrineum bituberculare (Lamarck, 1816) (original description)
Raphitoma crenicostata Cossmann, 1903 † (original description)
Rimella margaritae Cossmann, 1903 † (original description)
Siphonalia (Penion) heptoides Cossmann, 1903 † represented as Siphonalia heptoides Cossmann, 1903 † (original description)
Streptosiphon macrospira Cossmann, 1903 † (original description)
Strombus karikalensis Cossmann, 1903 † accepted as Laevispira karikalensis (Cossmann, 1903) † (original description)
Sveltia (Aneurystoma) morgani Cossmann, 1903 † (original description)
Trigonostoma bonneti Cossmann, 1903 † accepted as Trigonostoma tjibaliungensis (K. Martin, 1895) † (original description)
Typhis (Typhinellus) tetragoniatus Cossmann, 1903 † accepted as Typhinellus tetragoniatus (Cossmann, 1903) † (original description)