Phylum Mollusca Linnaeus, 1758 - molluscs
Count: [*†*] 8c;49o;641f;6099g; †2f;162g [24 Jan 2022]
   Class Gastropoda Cuvier, 1795 - snails and slugs
  Count: [*] 21o;416f;4650g; †136g [13 Dec 2021]
     Subclass Divasibranchia Minichev & Starobogatov, 1975
    Count: [*] 2o;103f;1517g [13 Dec 2021]
       Order Basommatophora Keferstein, 1865 see Suborder Basommatophora Keferstein, in Bronn, 1864
      Count: [*] 17f;88g [7 Nov 2021]
         Superfamily Planorbioidea Vaught, 1989, orth. inval. see Superfamily Planorboidea Rafinesque, 1815
        Count: [*] 6f;53g [7 Nov 2021]
           Family Planorbidae Rafinesque, 1815 - planorbids
          Count: [*] 36g [7 Nov 2021]
             Subfamily Planorbinae Rafinesque, 1815
            Count: [*] 28g [6 Nov 2021]
               Tribe Drepanotremeae Zilch, 1959, orth. inval. see Tribe Drepanotrematini Zilch, 1959
              Count: [*] 3g [6 Nov 2021]
                 Genus Fossulorbis Pilsbry, 1934
                Count: -