Family Umbonulidae
 
Umbonula Hincks, 1880
 
  Umbonula ovicellata Hastings, 1944 (3, 4, 5)
 
Hippopleurifera Canu & Bassler, 1925
 
  Hippopleurifera pulchra (Manzoni, 1870) (3, 5)

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