Family Melongenidae : 8 Genus
 1/8  Genus Brunneifusus : 3 Species 
   1/3 Brunneifusus haae
   2/3 Brunneifusus haszprunari
   3/3 Brunneifusus ternatanus
 2/8  Genus Hemifusus : 13 Species 
   1/13 Hemifusus alfi
   2/13 Hemifusus boucheti
   3/13 Hemifusus colosseus
   4/13 Hemifusus crassicauda
   5/13 Hemifusus hitoshiikedai
   6/13 Hemifusus kawamurai
   7/13 Hemifusus ngocduyenae
   8/13 Hemifusus ngocngai
   9/13 Hemifusus schuetti
   10/13 Hemifusus treudei
   11/13 Hemifusus tuba
   12/13 Hemifusus vietnamensis
   13/13 Hemifusus yurikantori
 3/8  Genus Melongena : 4 Species 
   1/4 Melongena bispinosa
   2/4 Melongena corona
   3/4 Melongena melongena
   4/4 Melongena patula
 4/8  Genus Pugilina : 4 Species 
   1/4 Pugilina axelalfi
   2/4 Pugilina morio
   3/4 Pugilina simonei
   4/4 Pugilina tupiniquim
 5/8  Genus Saginafusus : 2 Species 
   1/2 Saginafusus momus
   2/2 Saginafusus pricei
 6/8  Genus Taphon : 2 Species 
   1/2 Taphon childsi
   2/2 Taphon clavella
 7/8  Genus Volegalea : 5 Species 
   1/5 Volegalea alforum
   2/5 Volegalea carnaria
   3/5 Volegalea cochlidium
   4/5 Volegalea dirki
   5/5 Volegalea grohi
 8/8  Genus Volema : 3 Species 
   1/3 Volema myristica
   2/3 Volema nodosa
   3/3 Volema pyrum
36 Species in Melongenidae 

(Extracted from WoRMS on October 2025)
NB: status "accepted" and "extant, not fossile-only"