In New Zealand the Waipara Greensands (Cretaceous) contain a species of _Rostellaria_ (_R. waiparensis_) (Fig. 101 E). =Cainozoic Gasteropods.--= Cainozoic Gasteropods are exceedingly abundant in beds of that system in Australasia. The Cainozoic marine fauna in Australia is practically restricted to the States of Victoria, South Australia, and Tasmania; whilst New Zealand has many species in common with Australia. =Genera.--= The commonest genera of the marine Cainozoic or Tertiary deposits are:--_Haliotis_, _Fissurellidea_, _Emarginula_, _Subemarginula_, _Astralium_, _Liotia_, _Gibbula_, _Eulima_, _Niso_, _Odostomia_, _Scala_, _Solarium_, _Crepidula_, _Calyptraea_, _Natica_, _Rissoa_, _Turritella_, _Siliquaria_, _Cerithium_, _Newtoniella_, _Tylospira_, _Cypraea_, _Trivia_, _Morio_, _Semicassis_, _Lotorium_, _Murex_, _Typhis_, _Columbella_, _Phos_, _Nassa_, _Siphonalia_, _Euthria_ (_Dennantia_), _Fusus_, _Columbarium_, _Fasciolaria_, _Latirus_, _Marginella_, _Mitra_, _Volutilithes_, _Voluta_, _Harpa_, _Ancilla_, _Cancellaria_, _Terebra_, _Pleurotoma_, _Drillia_, _Conus_, _Bullinella_ and _Vaginella_. =Persistent Species.--= Amongst the Cainozoic Gasteropoda of southern Australia which have a persistent range through Balcombian to Kalimnan times, we find:--_Niso psila_, _Crepidula unguiformis_ (also Werrikooian and Recent), _Natica perspectiva_, _N. hamiltonensis_, _Turritella murrayana_, _Cerithium apheles_, _Cypraea leptorhyncha_, _Lotorium gibbum_, _Volutilithes antiscalaris_ (also in Werrikooian), _Marginella propinqua_, _Ancilla pseudaustralis_, _Conus ligatus_ and _Bullinella exigua_. =Balcombian Gasteropods.--= Species restricted to the Balcombian stage include _Scala dolicho_, _Seguenzia radialis_, _Dissocheilus eburneus_, _Trivia erugata_, _Cypraea ampullacea_ (Fig. 102 A), _C. gastroplax_, _Colubraria leptoskeles_, _Murex didymus_ (Fig. 102 B), _Eburnopsis aulacoessa_ (Fig. 102 C), _Fasciolaria concinna_, _Mitra uniplica_, _Harpa abbreviata_, _Ancilla lanceolata_, _Cancellaria calvulata_ (Fig. 102 D), _Buchozia oblongula_, _Pleurotoma optata_, _Terebra leptospira_ and _Vaginella eligmostoma_ (Fig. 102 E), (also found at Gellibrand River). [Illustration: =Fig. 102--CAINOZOIC GASTEROPODA.= A--Cypraea ampullacea, Tate. Cainozoic (Balc.) Victoria B--Murex didymus, Tate. Cainozoic (Balc.) Victoria C--Eburnopsis aulacoessa, Tate. Cainozoic (Balc.) Victoria D--Cancellaria calvulata, Tate. Cainozoic (Balc.) Victoria E--Vaginella eligmostoma, Tate. Cainozoic (Balc.) Victoria ] [Illustration: =Fig. 103--CAINOZOIC GASTEROPODA.= A--Eutrochus fontinalis, Pritchard. Cainozoic (Janjukian). Vict. B--Morio wilsoni, Tate. Cainozoic (Janjukian). Victoria C--Scala lampra, Tate sp. Cainozoic (Janjukian). South Australia D--Natica gibbosa, Hutton. Cainozoic (Janjukian). South Australia E--Volutilithes anticingulatus, McCoy sp. Cainozoic (Janjukian). Victoria