Ammonoceras cyclina Cousin, 1887 accepted as Austroselenites cyclina (Cousin, 1887) (original description)
Ampullaria puntaplaya Cousin, 1887 accepted as Pomacea puntaplaya (Cousin, 1887) (original description)
Ampullaria reyrei Cousin, 1887 accepted as Pomacea reyrei (Cousin, 1887) (original description)
Aplecta gualbertoi Cousin, 1887 accepted as Mexinauta peruvianus (J. E. Gray, 1828) (original description)
Aplecta martinidella Cousin, 1887 accepted as Mayabina carolita (Jousseaume, 1887) (original description)
Cyclophorus antonii Cousin, 1887 accepted as Lagocyclus antonii (Cousin, 1887) (original description)
Hamadryas fallax var. major Cousin, 1887 accepted as Drymaeus fallax (L. Pfeiffer, 1853) (original description)
Helix mariciei Cousin, 1887 accepted as Isomeria triodonta (A. d'Orbigny, 1835) (original description)
Isomeria bourcieri var. lutea Cousin, 1887 accepted as Isomeria bourcieri (L. Pfeiffer, 1853) accepted as Isomeria bourcieri (Reeve, 1852) (original description)
Neritostoma marianita Cousin, 1887 accepted as Succinea marianita (Cousin, 1887) (original description)
Obeliscus jousseaumei Cousin, 1887 accepted as Protobeliscus jousseaumei (Cousin, 1887) (original description)
Orphnus thompsoni var. lutea Cousin, 1887 accepted as Kara thompsonii (L. Pfeiffer, 1845) (original description)
Orphnus thompsoni var. nigricans Cousin, 1887 accepted as Kara thompsonii (L. Pfeiffer, 1845) (original description)
Orphnus thompsoni var. olivacea Cousin, 1887 accepted as Kara thompsonii (L. Pfeiffer, 1845) (original description)
Orphnus thompsoni var. zebra Cousin, 1887 accepted as Kara thompsonii (L. Pfeiffer, 1845) (original description)
Planorbis canonicus Cousin, 1887 accepted as Biomphalaria peregrina (A. d'Orbigny, 1835) (original description)
Planorbis clevei Jousseaume, 1887 accepted as Biomphalaria clevei (Jousseaume, 1887) (original description)
Planorbis equatorius Cousin, 1887 accepted as Biomphalaria equatoria (Cousin, 1887) (original description)
Thaumastus alausiensis Cousin, 1887 accepted as Bostryx alausiensis (Cousin, 1887) (original description)
Thaumastus juana Cousin, 1887 accepted as Bostryx juana (Cousin, 1887) (original description)
Thaumastus nystianus var. lutea Cousin, 1887 accepted as Drymaeus nystianus (L. Pfeiffer, 1853) (original description)
Thaumastus nystianus var. nigricans Cousin, 1887 accepted as Drymaeus nystianus (L. Pfeiffer, 1853) (original description)
Veronicella marianita Cousin, 1887 accepted as Sarasinula linguaeformis (C. Semper, 1885) (original description)

Ecuador for Ammonoceras cyclina Cousin, 1887 
Ecuador for Ampullaria puntaplaya Cousin, 1887 
Ecuador for Ampullaria puntaplaya Cousin, 1887 
Ecuador for Ampullaria reyrei Cousin, 1887 
Ecuador for Aplecta gualbertoi Cousin, 1887 
Ecuador for Aplecta martinidella Cousin, 1887 
Ecuador for Cyclophorus antonii Cousin, 1887 
Ecuador for Cyclophorus vasconesi Jousseaume, 1897 
Ecuador for Hamadryas fallax var. major Cousin, 1887 
Ecuador for Isomeria bourcieri var. lutea Cousin, 1887 
Ecuador for Leptinaria valenzuela Jousseaume, 1887 
Ecuador for Lymnaea raphaelis Jousseaume, 1887 
Ecuador for Neritostoma marianita Cousin, 1887 
Ecuador for Obeliscus jousseaumei Cousin, 1887 
Ecuador for Orphnus thompsonii var. lutea Cousin, 1887 
Ecuador for Orphnus thompsonii var. nigricans Cousin, 1887 
Ecuador for Orphnus thompsonii var. olivacea Cousin, 1887 
Ecuador for Orphnus thompsonii var. zebra Cousin, 1887 
Ecuador for Planorbis clevei Jousseaume, 1887 
Ecuador for Thaumastus alausiensis Cousin, 1887 
Ecuador for Thaumastus juana Cousin, 1887 
Ecuador for Thaumastus nystianus var. lutea Cousin, 1887 

 Type locality

 for Biomphalaria equatoria (Cousin, 1887)

Type locality: Ecuador (= 'Equateur') [details]

 Type locality

 for Planorbis canonicus Cousin, 1887

Type locality: Saint-Paolo Lake near Quito, Ecuador [details]