Theo World Register of Marine Species).[3]

• Anarithma Iredale, 1916
• Arielia Shasky, 1961
• † Itia Marwick, 1931
• Lovellona Iredale, 1917
• Maorimorpha Powell, 1939
• † Mitrellatoma Powell, 1942
• Mitromorpha Carpenter, 1865
• Scrinium Hedley, 1922

• Ariella Shasky, 1961: synonym of Arielia Shasky, 1961
• Citharopsis Pease, 1868: synonym of Anarithma Iredale, 1916
• Cymakra Gardner, 1937: synonym of Mitromorpha Carpenter, 1865
• Helenella Casey, 1904: synonym of Mitromorpha Carpenter, 1865
• Mitrithara Hedley, 1922: synonym of Mitromorpha Carpenter, 1865
• Mitrolumna Bucquoy, Dautzenberg & Dollfus, 1883: synonym of Mitromorpha Carpenter, 1865
• Vexiariella Shuto, 1983: synonym of Arielia Shasky, 1961