• Aaptolasma americana (Pilsbry, 1916)
• Aaptolasma brintoni Newman & Ross, 1971
• Aaptolasma callistoderma (Pilsbry, 1911)
• Aaptolasma fosteri (Newman & Ross, 1971)
• Aaptolasma leptoderma Newman & Ross, 1971
• Aaptolasma nolearia Foster, 1978
• Aaptolasma triderma Newman & Ross, 1971
• Bathylasma alearum (Foster, 1978)
• Bathylasma aucklandicum (Hector, 1888)
• Bathylasma corolliforme (Hoek, 1883)
• Bathylasma hirsutum (Hoek, 1883)
• Hexelasma alearum Foster, 1978
• Hexelasma americanum Pilsbry, 1916
• Hexelasma antarcticum Borradaile, 1916
• Hexelasma fosteri Newman & Ross, 1971
• Hexelasma gracilis Foster, 1981
• Hexelasma nolearia (Foster, 1978)
• Hexelasma velutinum Hoek, 1913
• Mesolasma fosteri (Newman & Ross, 1971)
• Pachylasma auranticacum Darwin, 1854
• Pachylasma chinense Pilsbry, 1912
• Pachylasma crinoidophilum Pilsbry, 1911
• Pachylasma distortum Buckeridge, 1983
• Pachylasma giganteum (Philippi, 1836)
• Pachylasma scutistriata Broch, 1922
• Pachylasma scutistriata Darwin, 1854
• Tessarelasma pilsbryi Withers, 1936
• Tetrachaelasma southwardi Newman & Ross, 1971
• Tetrachaelasma tasmanicum Buckeridge, 1999
• Tetrapachylasma ferrugomaculosa (D.I. Jones, 1993)