Neocrassa
{{Short description|Genus of land snails}}
{{Merge-from|Neocrassa neocrassa|date=June 2025}}
{{Automatic taxobox
| image = Codringtonia-neocrassa 01.jpg
| taxon = Neocrassa
| authority = Subai, 2005
| type_species = Codringtonia neocrassa
| type_species_authority = Zilch, 1952
| subdivision = * Neocrassa neocrassa (Zilch, 1952)
}}
Neocrassa is a monotypic genus of large, air-breathing land snails native to Epirus and Kerkyra in northwestern Greece and to southern Albania.{{Cite journal |last=Subai |first=Peter |date=2005-07-26 |title=Revision der Gattung Codringtonia Kobelt 1898 (Gastropoda: Pulmonata: Helicidae: Helicinae) |trans-title=Revision of the genus Codringtonia Kobelt 1898| lang=de |journal=Archiv für Molluskenkunde |volume=134 |issue=1 |pages=65–119 |doi=10.1127/arch.moll/0003-9284/134/065-119 |doi-access=free |bibcode=2005ArMol.134...65S |issn=0003-9284}}{{Cite journal |last1=Korábek |first1=Ondřej |last2=Juřičková |first2=Lucie |last3=Petrusek |first3=Adam |date=2022 |title=Diversity of Land Snail Tribe Helicini (Gastropoda: Stylommatophora: Helicidae): Where Do We Stand after 20 Years of Sequencing Mitochondrial Markers? |journal=Diversity |language=en |volume=14 |issue=1 |pages=24 |doi=10.3390/d14010024 |doi-access=free |issn=1424-2818}}
Originally described as a subgenus of Codringtonia, Neocrassa was elevated to genus level following molecular phylogenetic analyses.{{Cite journal |last=Kotsakiozi |first=Panayiota |last2=Parmakelis |first2=Aristeidis |last3=Giokas |first3=Sinos |last4=Papanikolaou |first4=Irene |last5=Valakos |first5=Efstratios D. |date=2012-02-01 |title=Mitochondrial phylogeny and biogeographic history of the Greek endemic land-snail genus Codringtonia Kobelt 1898 (Gastropoda, Pulmonata, Helicidae) |url=https://www.sciencedirect.com/science/article/pii/S1055790311004830 |journal=Molecular Phylogenetics and Evolution |volume=62 |issue=2 |pages=681–692 |doi=10.1016/j.ympev.2011.11.012 |issn=1055-7903}}{{Cite journal |last=Korábek |first=Ondřej |last2=Petrusek |first2=Adam |last3=Neubert |first3=Eike |last4=Juřičková |first4=Lucie |date=2015 |title=Molecular phylogeny of the genus Helix (Pulmonata: Helicidae) |url=https://onlinelibrary.wiley.com/doi/abs/10.1111/zsc.12101 |journal=Zoologica Scripta |language=en |volume=44 |issue=3 |pages=263–280 |doi=10.1111/zsc.12101 |issn=1463-6409}} There are several characters that distinguish Neocrassa from Codringtonia: distal part of flagellum coiled, long diverticulum of bursa copulatrix, strongly branched mucous glands, missing atrial stimulator, love dart anchor-like in cross-section, and a different course of mating.