Contents of World Wide Malacological CATalog (Nuovazelanda)
Classification elements
| subclassis | n. | 4 |
| superordo | n. | 1 |
| ordo | n. | 7 |
| subordo | n. | 5 |
| superfamilia | n. | 25 |
| familia | n. | 36 |
| subfamilia | n. | 25 |
| tribus | n. | 1 |
| genus | n. | 76 |
| subgenus | n. | 0 |
| speciem | n. | 388 |
| sinonim | n. | 0 |
Numbers of species included into each familia
| CLASSIS GASTROPODA | | |
| familia | hydorocenidae | 13 |
| familia | hydrobiidae | 17 |
| familia | iravadiidae | 6 |
| familia | ampullariidae | 1 |
| familia | thiaridae | 1 |
| familia | melanopsidae | 1 |
| familia | latiidae | 1 |
| familia | lymnaeidae | 5 |
| familia | physidae | 4 |
| familia | planorbidae | 5 |
| familia | ancylidae | 2 |
| familia | achatinellidae | 2 |
| familia | cochlicopidae | 1 |
| familia | valloniidae | 3 |
| familia | vertiginidae | 2 |
| familia | orthalicidae | 19 |
| familia | subulinidae | 1 |
| familia | achatinidae | 1 |
| familia | spiraxidae | 1 |
| familia | rhytididae | 70 |
| familia | punctidae | 78 |
| familia | charopidae | 141 |
| familia | otoconchidae | 4 |
| familia | succineidae | 1 |
| familia | helixarionidae | 1 |
| familia | vitrinidae | 2 |
| familia | zonitidae | 1 |
| familia | milacidae | 1 |
| familia | limacidae | 3 |
| familia | helicellidae | 1 |
| CLASSIS BIVALVIA | | |
| familia | bradybaenidae | 1 |
| familia | margaritiferidae | 1 |
| familia | hyriidae | 3 |
| familia | etheriidae | 1 |
| familia | dreissenidae | 1 |
| errors | n. | 0 |