| Microhedylidae | |
|---|---|
|  | |
| live Pontohedyle milaschewitchii ot = oral tentacles, ey = eyes, dg = digestive gland. | |
| Scientific classification | |
| Kingdom: | Animalia | 
| Phylum: | Mollusca | 
| Class: | Gastropoda | 
| (unranked): | clade Heterobranchia clade Euthyneura clade Panpulmonata clade Acochlidiacea clade Microhedylacea | 
| Family: | Microhedylidae Odhner, 1937 | 
| Diversity | |
| Microhedylidae s.s.: 
 Microhedylidae s.l. (including Ganitidae): 
 | |
| Synonyms | |
| 
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Microhedylidae s.l. (including Ganitidae):
Microhedylidae are a taxonomic family of sea slugs, marine gastropod mollusks within the clade Acochlidiacea.
Microhedylidae has been listed as a synonym of Parhedylidae in the taxonomy of Bouchet & Rocroi (2005). Ganitidae Rankin, 1979 has been listed as a sole family within Hedylopsoidea. The type genus of Livorniellidae was Livorniella Rankin, 1979.
Sensu Schrödl & Neusser (2010) is Microhedylidae within the clade Microhedylacea. Parhedylidae is a synonym of Microhedylidae. Microhedylidae s.l. may informally include Ganitidae, but inclusion of Ganitidae within Microhedylidae requires further research and higher statistical support.
Genera within the Microhedylidae include:
Microhedyle Hertling, 1930
Parhedyle Thiele, 1931
Pontohedyle Golikov & Starobogatov, 1972
A cladogram based on sequences of mitochondrial 28S ribosomal RNA, 16S ribosomal RNA and (COI) genes showing phylogenic relations within the family Microhedylidae:
Microhedyle sp. from St. Vincent