Opinions from A. A. Olsson 1930
- 'Admete paytensis belongs to Admete'
- 'Amphiperas bullennewtoni belongs to Amphiperas'
- 'Ancilla pananga belongs to Ancilla'
- 'Bursa chira belongs to Bursa'
- 'Cardium junceum belongs to Cardium'
- 'Clavalithes cynosuris belongs to Clavalithes'
- 'Clavalithes yasilus belongs to Clavalithes'
- 'Conus chiraensis belongs to Conus'
- 'Conus peruvianus belongs to Conus'
- 'Crassispira capella belongs to Crassispira'
- 'Crassispira woodringi belongs to Crassispira'
- 'Dentalium mancorens belongs to Dentalium'
- 'Dentalium yasilum belongs to Dentalium'
- 'Eopleurotoma paytensis belongs to Eopleurotoma'
- 'Eopleurotoma wiedeyi belongs to Eopleurotoma'
- 'Eovasum douvillei belongs to Eovasum'
- 'Epitonium paytense belongs to Epitonium'
- 'Epitonium peruvianum belongs to Epitonium' according to A.A. Olsson 1928
- 'Fusiturricula yasila belongs to Fusiturricula'
- 'Genota [misspelled as Genotia] belongs to Turridae'
- 'Genotia peruviana belongs to Genotia'
- 'Gisortia thomasi belongs to Gisortia'
- 'Glycymeris peruvianus belongs to Glycymeris'
- 'Hemipleurotoma arenosa belongs to Hemipleurotoma'
- 'Leda barranca belongs to Leda'
- 'Lyria busera belongs to Lyria'
- 'Mitra yasila belongs to Mitra'
- 'Moniliopsis paytensis belongs to Moniliopsis'
- 'Moniliopsis peruviana belongs to Moniliopsis'
- 'Murex scorpionius belongs to Murex'
- 'Natica paytensis belongs to Natica'
- 'Nucula catalina belongs to Nucula'
- 'Oliva misti belongs to Oliva'
- 'Olivancillaria inca belongs to Olivancillaria'
- 'Ovula negritensis is recombined as Amphiperas negritensis'
- 'Peruficus lagunitensis belongs to Peruficus' according to A.A. Olsson 1929
- 'Phacoides andersoni belongs to Phacoides'
- 'Phacoides woodi belongs to Phacoides'
- 'Pitaria was reranked as Pitar (Pitaria) and belongs to Pitar'
- 'Pitaria baldryi belongs to Pitaria'
- 'Pitaria yasila belongs to Pitaria'
- 'Plejona belongs to Volutidae'
- 'Plejona sula belongs to Plejona'
- 'Plesiotriton paytensis belongs to Plesiotriton'
- 'Pollia purpuroides belongs to Pollia'
- 'Pollia sillapaytensis belongs to Pollia'
- 'Pseudoliva coronaria belongs to Pseudoliva'
- 'Scobinella bartschi belongs to Scobinella'
- 'Siphonalia nuntia belongs to Siphonalia'
- 'Terebra negritensis belongs to Terebra'
- 'Terebrifusus lepus belongs to Terebrifusus'
- 'Terebrifusus placitus belongs to Terebrifusus'
- 'Tuba peruviana belongs to Tuba'
- 'Turricula eolavinia belongs to Turricula'
- 'Typhis thagus belongs to Typhis'
- 'Venericardia simillina belongs to Venericardia'
- 'Voluta (Peruluta) was reranked as Peruluta and belongs to Volutidae'
- 'Voluta paytanica belongs to Voluta'
- 'Xancus (Eoxancus) talarensis belongs to Xancus (Eoxancus)'
- 'Xancus paytensis is recombined as Xancus (Eoxancus) paytensis'
- 'Yasila paytensis belongs to Yasila'