Ampullina breccia Olsson, 1944 † (original description)
Ampullina cumara Olsson, 1944 † (original description)
Ampullina tortuga Olsson, 1944 † (original description)
Anchura pacifica Olsson, 1944 † (original description)
Cardium (Incacardium) Olsson, 1944 † accepted as Incacardium Olsson, 1944 † (original description)
Cardium (Incacardium) mellisum Olsson, 1944 † accepted as Incacardium mellisum (Olsson, 1944) † (original description)
Corbicula meridionalis Olsson, 1944 † (original description)
Glauconia cordalis Olsson, 1944 † (original description)
Melanatria medialis Olsson, 1944 † accepted as Nodifaunus medialis (Olsson, 1944) † (original description)
Mulinoides Olsson, 1944 † (original description)
Mulinoides chilca Olsson, 1944 † (original description)
Nodifaunus Olsson, 1944 † (original description)
Nodifaunus costatus Olsson, 1944 † (original description)
Nodifaunus nodosus Olsson, 1944 † (original description)
Peruviella Olsson, 1944 † (original description)
Pyrazus peruvianus Olsson, 1944 † accepted as Pyrazopsis peruviana (Olsson, 1944) † (original description)
Stalioa agnia Olsson, 1944 † (original description)
Trigonia (Scabrotrigonia) gerthi Olsson, 1944 † accepted as Praescabrotrigonia olssoni M. R. Cooper, 2015 † (original description)
Trigonia hopkinsi Olsson, 1944 † accepted as Neobuchotrigonia hopkinsi (Olsson, 1944) † (original description)
Trocotaulax Olsson, 1944 † (original description)
Trocotaulax elegans Olsson, 1944 † (original description)
Turritella bartsia Olsson, 1944 † (original description)
Turritella ceiba Olsson, 1944 † accepted as Nairiella ceiba (Olsson, 1944) † (original description)
Turritella desolata Olsson, 1944 † (original description)
Turritella inuya Olsson, 1944 † (original description)
Turritella lama Olsson, 1944 † accepted as Nairiella lama (Olsson, 1944) † (original description)
Turritella parinensis Olsson, 1944 † (original description)
Turritella prechira Olsson, 1944 † (original description)
Turritella prelissoni Olsson, 1944 † (original description)
Turritella saposa Olsson, 1944 † accepted as Nairiella saposa (Olsson, 1944) † (original description)

Peru for Ampullina breccia Olsson, 1944 † 
Peru for Ampullina cumara Olsson, 1944 † 
Peru for Ampullina tortuga Olsson, 1944 † 
Peru for Corbicula meridionalis Olsson, 1944 † 
Peru for Glauconia cordalis Olsson, 1944 † 
Peru for Melanatria medialis Olsson, 1944 † 
Peru for Nodifaunus costatus Olsson, 1944 † 
Peru for Nodifaunus nodosus Olsson, 1944 † 
Peru for Pyrazus peruvianus Olsson, 1944 † 
Peru for Stalioa agnia Olsson, 1944 † 
Peru for Turritella bartsia Olsson, 1944 † 
Peru for Turritella ceiba Olsson, 1944 † 
Peru for Turritella desolata Olsson, 1944 † 
Peru for Turritella inuya Olsson, 1944 † 
Peru for Turritella lama Olsson, 1944 † 
Peru for Turritella parinensis Olsson, 1944 † 
Peru for Turritella prechira Olsson, 1944 † 
Peru for Turritella prelissoni Olsson, 1944 † 
Peru for Turritella saposa Olsson, 1944 † 

Syntype PRI 4834-4835, identified as Corbicula meridionalis Olsson, 1944
Syntype PRI 4877-4878, identified as Stalioa agnia Olsson, 1944
Holotype PRI 4910, identified as Melanatria medialis Olsson, 1944
Syntype PRI 4920-4922, identified as Nodifaunus nodosus Olsson, 1944
Syntype PRI 4923-4924, identified as Nodifaunus costatus Olsson, 1944

 Type locality

 for Corbicula meridionalis Olsson, 1944 †

Tortuga, Peru [details]

 Type locality

 for Melanatria medialis Olsson, 1944 †

Tortuga, Peru [details]

 Type locality

 for Nodifaunus costatus Olsson, 1944 †

Tortuga, Peru [details]

 Type locality

 for Nodifaunus nodosus Olsson, 1944 †

Tortuga, Peru [details]

 Type locality

 for Stalioa agnia Olsson, 1944 †

Tortuga, Peru [details]