Marshall and Murdoch. — Tertiary Bocks near Wanganui. 121 



Macrocallista ■multistriata (Sow.) 



Mactra discors (Gray) 



Mactra elongata (Q. & G.) 



Mactra ovata (Gray) 



Mactra scalpellum (Reeve) . 



Malletia australis (Q. & G.) 



Mangilia amoena (E. A. Smith) 



MangiUa sinclairi (E. A. Smith) 



Mitrella choava (Reeve) 



Modiolus australis (Gray) 



Murex angasi (Crosse) 



Murex octogonus (Q. & G.) 



Murex octogonus umbilicatus (T.- 

 Woods) 



Murex zelandicus (Q. & G.) 



Musculus impactus (Herm.) 



Myodora antipodum (E. A. Smith) 



Myodora striata (Q. & G.) 



Myodora subrostrata (E. A. Smith) 



Myfilus canaliculus (Mart.) 



Mytilus edulis (L.) 



Mytilus mam-ianus (Iredale) 



Natica australis (Hutt.) 



Natica zelandica (Q. & G.) 



Nucula hartvigiana (Pfr.) 



Nucula nitidula (A. Ad.) 



Nuculana bellida (A. Ad.) 



Nucidana fastidiosa (A. Ad.) 



Odostomia bembix (Sut.) 



Odostomia huttoni (Sut.) 



Odostomia rugata (Hutt.) 



Ostrea angasi (Sow.) 



Ostrea corrugata (Hutt.) 



Panope zelandica (Q. & G.) 



Paphia intermedia (Q. & G.) 



Pecten convexus (Q. & G.) 



Pecten mediiis (Lamk.) , 



Pecten radiatus (Hutt.) 



Pecten zelaruliae (Gray) 



Phalium ackatinum pyrum (Lamk.) 

 *Philobrya irigonopsis (Hutt.) 



Protocardia pulchella (Gray) 



Psammobia lineolata (Gray) 



Psammobia stangeri (Gray) 



Psammobia zelandica (Desh.) 



P^ipa affinis (A, Ad.) 



PujM alba (Hutt.) 

 *Rissoa semisulcata (Hutt.) ['' Liro- 

 noba "] 



Rissoina chathamensis (Hutt.) [= R. 

 rugulosa (Hutt.)] 



Rissoina emdrginata (Hutt.) [" No- 

 zeba "] 



Rissoina olivacea (Hutt.) [" Darda- 



nula "] 

 Rochefortia reniformis (Sut.) 

 Saxicava arctica (L.) 

 Seila terebelloides (Mts.) 

 SinuW' und'ulatum (Hutt.) 

 Siphonalia caudata (Q. & G.) 

 Siphonalia dilataia (Q. & G.) 

 Siphonalia mandarina (Duclos) 

 Siphonalia nodosa (Mart.) 

 Siphonalia valedicta (Wats.) 

 Solariella egena (Goukl) 

 Soletellina nitida (Gray) 

 Spisula equilateralis (Desh.) 

 Spisula ordinaria (E. A. Smith) 

 Struthiolaria papulosa (Mart.) 

 Struthiolaria vermis (Mart.) 

 *Surcula castlecliffensis (Marshall and 



Murdoch) 

 Tellina eugonia (Sut.) 

 Tellina huttoni sterrha (Sut.) 

 Tellina liliana (Iredale) 

 Tellina spenceri (Sut.) 

 Terebra tristis (Desh.) 

 ^Thracia vegrandis (Marshall and 



Murdoch) 

 Thracia vitrea (Hutt.) 

 Tornatina pachys (Wats.) 

 Trichotropis clathrata (Sow.) 

 *Trochus conicus (Hutt.) 

 Trochus tiaratus (Q. & G.) 

 Trochus viridis (Gmel.) 

 Trophon ambiguus (Phil.) 

 Trophon cheesemani (Hutt.) 

 Trophon pumil'a Sut. [= T. bonneti 



Cossm.] 

 Tugalia intermedia (Reeve) 

 Turbo granosus (Mart.) 

 Turbo smaragdus (Mart.) 

 Turbonilla zealandica (Hutt.) 

 Turritella carlottae (Wats.) 

 Turritella rosea (Q. & G.) 

 Turritella symmetrica (Hutt.) 

 Venericardia lutea (Hutt.) 

 Venericardia purpurata (Desh.) 

 Venericardia unidentata (Basterot) 

 Vexillum marginatum (Hutt.) 

 Vexillum rubiginosum (Hutt.) 

 Valuta arabica (Mart.) 

 Voluta arabica elongata (Swains.) 

 Voluta gracilis (Swains.) 

 Xymene plebejus (Hutt.) 

 Zenatia acinaces (Q. & G.) 



The total number, of species is 181, of which 92-8 per cent, are Recent. 



