Amalia budapestensis Hazay, 1880 accepted as Tandonia budapestensis (Hazay, 1880) (original description)
Bythinella hungarica Hazay, 1880 (original description)
Bythinella hungarica var. pura Hazay, 1880 (original description)
Bythinia tentaculata var. thermalis Hazay, 1880 (original description)
Calyculina hungarica Hazay, 1880 accepted as Musculium lacustre (O. F. Müller, 1774) accepted as Sphaerium lacustre (O. F. Müller, 1774) (original description)
Gulnaria ovata var. piniana Hazay, 1880 (original description)
Helix pomatia var. compacta Hazay, 1880 accepted as Helix pomatia Linnaeus, 1758 (original description)
Helix pomatia var. hajnaldiana Hazay, 1880 accepted as Helix pomatia Linnaeus, 1758 (original description)
Helix pomatia var. pulskyana Hazay, 1880 accepted as Helix pomatia Linnaeus, 1758 (original description)
Helix pomatia var. sabulosa Hazay, 1880 accepted as Helix pomatia Linnaeus, 1758 (original description)
Helix pomatia var. solitaria Hazay, 1880 accepted as Helix pomatia Linnaeus, 1758 (original description)
Limnaea (Gulnaria) ovata var. pulskyana Hazay, 1880 accepted as Ampullaceana intermedia (Lamarck, 1822) (original description)
Limnaea (Lymnophysa) palustris (O. F. Müller, 1774) accepted as Stagnicola palustris (O. F. Müller, 1774) (basis of record)
Limnaea (Lymnophysa) palustris var. baudoniana Hazay, 1880 (original description)
Limnaea (Lymnophysa) palustris var. clessiniana Hazay, 1880 accepted as Limnaea reflexa Say, 1821 accepted as Ladislavella elodes (Say, 1821) (original description)
Limnaea (Lymnophysa) parvula Hazay, 1880 accepted as Stagnicola palustris (O. F. Müller, 1774) (original description)
Limnaea stagnalis var. variegata Hazay, 1880 accepted as Lymnaea stagnalis (Linnaeus, 1758) (original description)
Limnophysa palustris var. clessiniana Hazay, 1880 accepted as Ladislavella elodes (Say, 1821) (original description)
Paludina hungarica Hazay, 1880 accepted as Viviparus acerosus Bourguignat, 1862 (original description)
Planorbis complanatus var. kobelti Hazay, 1880 (original description)
Planorbis marginatus var. fontinalis Hazay, 1880 accepted as Planorbis planorbis (Linnaeus, 1758) (original description)
Succinea elegans var. baudoniana Hazay, 1880 (original description)
Succinea elegans var. piniana Hazay, 1880 (original description)
Succinea hungarica Hazay, 1880 accepted as Oxyloma dunkeri (L. Pfeiffer, 1865) (original description)
Succinea hungarica var. bipartita Hazay, 1880 (original description)
Succinea hungarica var. cuneola Hazay, 1880 (original description)
Succinea hungarica var. hasta Hazay, 1880 (original description)
Succinea kobelti Hazay, 1880 (original description)
Succinea kobelti var. szinnyeiana Hazay, 1880 (original description)
Succinea kobelti var. szinnyeiana f. gracilis Hazay, 1880 (original description)
Succinea kobelti var. szinnyeiana f. ventricula Hazay, 1880 (original description)
Succinea kobelti var. tumida Hazay, 1880 (original description)
Succinea putris var. angusta Hazay, 1880 accepted as Succinea putris (Linnaeus, 1758) (original description)
Succinea putris var. clessiniana Hazay, 1880 accepted as Succinea putris (Linnaeus, 1758) (original description)
Succinea putris var. fontana Hazay, 1880 accepted as Succinea putris (Linnaeus, 1758) (original description)
Succinea putris var. grandis Hazay, 1880 accepted as Succinea putris (Linnaeus, 1758) (original description)