250 Transactions. 



The strata called elsewhere in this paper " Trelissick (2)," the Pakaii- 

 rangi beds, and the sandy beds of the lower Waipara Gorge should probably 

 be placed here. 



Ototara Series (25-30 per cent, of Recent species). 



Characteristic fossils : Pecten athleta, P. hochstetteri, P. williamsoni, 

 Ostrea nelsoniana, Lima laevigata. 



This series is more definitely marked lithologically than palaeontologic- 

 ally, for it consists mainly of the limestone stratum which has such a 

 geiieral occurrence throughout New Zealand and but seldom contains niol- 

 luscan fossils. Nearly all tlie fossils that have been found in this limestone 

 have been found in higher and in lower horizons as well. 



^o^ 



Wharekuri Series (20-25 per cent, of Recent species of MoUusca). 



Characteristic fossils : Surcula serotina, Borsonia mitromorphoides, 

 Fusinus maorianus, Exilia dalli, Crussatellites subobesus, Niso neozelanica, 

 Polinices kuttoni, Turriiella ambulacrum. 



Since my previous publication on the Wharekuri beds the following 

 additional species of MoUusca have been collected : Turris subaltus n. sp., 

 Cucullaea australis, Terebra orycta, Terebra sulcata Marshall, Crassatellites 

 subobesus n. sp., Panope orbita, Divaricella cumingi, Argobuccinum ? sj)., 

 Canlium waitakiense, Marginella harrisi, Typhis maccoyi, Borsonia mitro- 

 morphoides, Chione sp., Siphonalia subnodosa, Zenatia acinaces, Fusinus 

 maorianus. 



The Waihao greensands are probably to be placed in this series. 



Wangaloa Series (0-20 per cent, of Recent Species of MoUusca). 



Characteristic fossils : Gilbertia, Perissolax, Heteroterma, Dicroloma, 

 Volutoderma, Struthiolaria minor, Pugnellus australis. 



Waipara Series (Senonian). 



Characteristic fossils : Trigonia hanetiana, Inoceramus australis, Con- 

 chothyra parasitica, Belemnites lindsayi, Kossmaticeras, Baculites, Mosasaurus. 



Art. XXIV. — Occurrence of Fossil Moa-hones in (he Lower Wajiganui 



Strata. 



By P. Marshall, M.A., D.Sc, F.G.S. 



[Read before the Warujainii Ffiilusophical Society, 7th December, WIS ; received by 

 difor, 30th Dcronbcr, 1918 ; issued sejmratdy, 16th July, 1919.] 



Plate XMIl. 



No occurrence of fossil remains of the larger species of moa has yet been 

 recorded. Such records as there are of fossil moa-remains were collected 

 by Hutton {Trans. N.Z. Inst., vol. 24, p. 141, 1891). Since the publication 

 of that paper no further record has been made. If it be true, as I 

 have often advocated, that the area of New Zealand has practically 

 been isolated since the Upper Cretaceous period, the development of 

 the numerous species of moa must have taken place within the limits 



