平厴螺屬（學名：）是縮口螺科之下一個非常細小的海螺的屬，其物種的殼口蓋有鈣質的螺厣。

物種
根據WoRMS，本屬包括下列各物種：

 Homalopoma africanum (Bartsch, 1915)
 Homalopoma agulhasense (Thiele, 1925)
 Homalopoma albidum (Dall, 1881)
 布纹平厣螺 Homalopoma amussitatum 
 Homalopoma baculum 
 Homalopoma berryi J. H. McLean, 1964 
 Homalopoma bicolor Okutani, 2001
 Homalopoma boffii Marini, 1975
 Homalopoma carmelae Oliverio & Buzzurro, 1994
 Homalopoma clippertonense (Hertlein & Emerson, 1953)
 Homalopoma concors Huang, Fu & Poppe, 2016
 Homalopoma cordellensis J. H. McLean, 1996
 Homalopoma cunninghami (E. A. Smith, 1881)
 东海缩口螺 Homalopoma donghaiense 
 Homalopoma draperi J. H. McLean, 1984
 † Homalopoma emulum (G. Seguenza, 1876) 
 曙光蝾螺 Homalopoma eoa 
 Homalopoma granuliferum Nomura & Hatai, 1940
 Homalopoma grippii (Dall, 1911) 
 Homalopoma himuquitanense Huang, Fu & Poppe, 2016
 Homalopoma hui Huang, Fu & Poppe, 2016
 Homalopoma imberculi Huang, Fu & Poppe, 2016
 Homalopoma incarnatum (Pilsbry, 1903)
 Homalopoma indutum (Watson, 1879) 
 Homalopoma keyurare Huang, Fu & Poppe, 2016 
 Homalopoma lacunatum (Carpenter, 1864)
 光滑蝾螺 Homalopoma laevigatum 
 Homalopoma lini Huang, Fu & Poppe, 2016
 Homalopoma linnei (Dall, 1889)
 Homalopoma lunellum Huang, Fu & Poppe, 2016
 Homalopoma luridum (Dall, 1885) 
 Homalopoma mactanense Huang, Fu & Poppe, 2016
 Homalopoma maculatum Golikov & Gulbin, 1978
 Homalopoma maculosa (Pease, 1868)
 Homalopoma mikkelsenae Huang, Fu & Poppe, 2016
 Homalopoma mimicum LaFollette, 1976 
 夜游平厣螺 Homalopoma nocturnum 
 Homalopoma nubisrubri Huang, Fu & Poppe, 2016
 Homalopoma parvum Huang, Fu & Poppe, 2016
 Homalopoma paucicostatum (Dall, 1871)   
 Homalopoma profundum Huang, Fu & Poppe, 2016
 Homalopoma quantillum Gould, 1861
 Homalopoma radiatum (Dall, 1918)
 Homalopoma rotundatum Sowerby, 1889
 Homalopoma rubidum (Dall, 1908)
 Homalopoma sangarense (Schrenck, 1862)
 Homalopoma sanguineum (Linnaeus, 1758)
 Homalopoma shisuiense (Makiyama, 1927)
 Homalopoma subobsoletum Willett, 1937
 Homalopoma tagaroae Huang, Fu & Poppe, 2016
 Homalopoma tapparonei (Caramagna, 1888)
 Homalopoma umbilicatum (Powell, 1926)
 Homalopoma unicum Huang, Fu & Poppe, 2016
 Homalopoma zephyrium Huang, Fu & Poppe, 2016

異名：
 Homalopoma arsinoense (Issel, 1869): synonym of Collonista arsinoensis (Issel, 1869) 
 Homalopoma carpenteri Pilsbry, 1888: synonym of Homalopoma luridum (Dall, 1885)
 Homalopoma engbergi (Willett, 1929): synonym of  Homalopoma lacunatum (Carpenter, 1864)
 Homalopoma finkli Petuch, 1987 accepted as Cataegis finkli (Petuch, 1987)
 Homalopoma juanensis (Dall, 1919) : synonym of Homalopoma luridum (Dall, 1885)
 Homalopoma kussakini Egorov, 2000 : synonym of Lirularia iridescens (Schrenck, 1863)
 Homalopoma panamense 現時改屬Cantrainea屬。
 Homalopoma rotundata [sic]: synonym of Homalopoma rotundatum (Sowerby, 1889)
 土佐山椒蝾螺 Homalopoma tosaensis 現時改屬Cantrainea屬。

其他物種還包括：
 Homalopoma crassicostata (Murdoch, 1905)
 Homalopoma fluctuata (Hutton, 1883)
 Homalopoma imperforata (Suter, 1908)    
 Homalopoma micans (Powell, 1931)
 Homalopoma nana (Finlay, 1930)
 Homalopoma peloritanum (Cantraine, 1835)        
 Homalopoma philipiana (Dall, 1889)        
 Homalopoma rotella (Powell, 1937)
 Homalopoma variecostata (Powell, 1937)

參考文獻

 Oliverio M. & G. Buzzurro, 1994. A new Mediterranean species of the Genus Homalopoma, with notes on the Genusgroup (Trochoidea, Turbinidae, Colloniinae). Bollettino Malacologico, Milano, 30(5-9): 182-188.
 Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180-213
 Williams S.T., Karube S. & Ozawa T. (2008) Molecular systematics of Vetigastropoda: Trochidae, Turbinidae and Trochoidea redefined. Zoologica Scripta 37: 483–506.

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