Arion ascensionis Lesson, 1831 (original description)
Calyptraea (Sigapatella) scutum Lesson, 1831 (original description)
Clausilia punctatissima Lesson, 1831 accepted as Bahiensis punctatissimus (Lesson, 1831) (original description)
Clio quadrispinosa Rang, 1831 accepted as Clio cuspidata (Bosc, 1801) (original description)
Conoelix swainsonii Lesson, 1830 (original description)
Cyclostoma lutea Lesson, 1831 (original description)
Fissurella obovalis Lesson, 1831 (original description)
Helicigona (Helix) ferussacii Lesson, 1831 accepted as Papuina ferussacii (Lesson, 1831) (original description)
Helicina lutea Lesson, 1831 (original description)
Helicina margaritacea Lesson, 1831 (original description)
Helix (Pileolus) gabertii Lesson, 1831 (original description)
Helix (Pileolus) tuffetii Lesson, 1831 accepted as Megalacron coniformis (A. Férussac, 1821) (original description)
Helix atrorubra Lesson, 1831 (original description)
Helix cheiri Lesson, 1831 (original description)
Helix discoides Lesson, 1831 (original description)
Helix fasciolata Lesson, 1831 accepted as Planispira zonaria (Linnaeus, 1767) (original description)
Helix lemniscata Lesson, 1831 (original description)
Helix multizona Lesson, 1831 accepted as Papuina multizona (Lesson, 1831) (original description)
Helix rangii Lesson, 1831 accepted as Figuladra lessoni (L. Pfeiffer, 1846) (original description)
Mactra radiosa Lesson, 1831 (original description)
Neritina atra Lesson, 1831 (original description)
Oliva praslinoides Lesson, 1831 (original description)
Oliva taitensis Lesson, 1831 (original description)
Patella bourouniensis Lesson, 1831 (original description)
Patella concepsionis Lesson, 1831 (original description)
Patella crassa Lesson, 1831 (original description)
Patella gigantea Lesson, 1831 (original description)
Patella granulosa Lesson, 1831 (original description)
Patella jacksoniensis Lesson, 1831 (original description)
Syphopatella Lesson, 1831 accepted as Crepidula Lamarck, 1799 (original description)

Australia for Patella argentaurum Lesson, 1831 
Bora-Bora for Helicina miniata Lesson, 1831 
Chile Central for Auricula fluviatilis Lesson, 1831 
Madang Province for Marmaronchis marmoratus (Lesson, 1831) 
Mauritius for Pupa pagoda Lesson, 1830 
Mauritius for Pupa palanga Lesson, 1830 
Moluccas for Patella costata Lesson, 1831 
New Guinea for Helix lituus Lesson, 1831 
New Guinea for Helix multizona Lesson, 1831 
New Guinea for Navicella depressa Lesson, 1831 
New Ireland Province for Auricula (Conovulus) sciuri Lesson, 1831 
New Ireland Province for Auricula mioxi Lesson, 1831 
New Ireland Province for Helix (Pileolus) tuffetii Lesson, 1831 
New Ireland Province for Helix discoides Lesson, 1831 
New Ireland Province for Navicella zebra Lesson, 1831 
New Ireland Province for Neritina amphibia Lesson, 1831 
New Ireland Province for Neritina variegata Lesson, 1831 
New Ireland Province for Onchidium marmoratum Lesson, 1831 
New Ireland Province for Pirena acus Lesson, 1831 
New Zealand Exclusive Economic Zone for Patella unguisalmae Lesson, 1830 
Peru for Helix sordidus Lesson, 1831 
Peruvian Exclusive Economic Zone for Calyptraea (Calypeopsis) rugosa Lesson, 1831 
Peruvian Exclusive Economic Zone for Calyptraea (Calypeopsis) tubifera Lesson, 1831 
Society Is. for Auricula (Conovulus) viola Lesson, 1831 
St. Helena for Helisiga sanctaehelenae Lesson, 1831 
St. Helena Exclusive Economic Zone for Patella cyanea Lesson, 1831 
Tahiti for Clithon undatus Lesson, 1831 
Tahiti for Pileopsis cytherae Lesson, 1831 
West Papua for Neritina waigiensis Lesson, 1831