Hutton. — On the Greensands of the Waihao Forks. 265 



(1.) Mr. McKay's facts are not quite accurate. In my first 

 paper (1876) I gave four species from the Waihao greensands — 

 viz., Xatica suturalis, Teredo heaphyi (= Cladopoda directa), Leda 

 fastidiosa (=L. semiteres), and Pecten hochstetteri. Sir J. von 

 Haast, in his " Geology of Canterbury and Westland" (1879), 

 mentions as coming from Waihao, 16 species of Mollusca in his 

 list of fossils of the Oamaru formation, and 3 others in his 

 list of fossils of the Pareora formation ; that is, 19 species in 

 all, Pecten hochstetteri not being included. The only species 

 mentioned by Mr. McKay in his report (1881) is Aturia ziczac, 

 and this is not in Dr. von Haast's list. In my last list (May, 

 1886,) I included 9 of these 20 species, and added 7 others 

 from the collections in the Canterbury Museum. There 

 are also 3 more,* which I omitted through inadvertence: 

 they are Peristernia cincta, Mitra inconspicua, and Cardium 

 patulum ; all three being found in other places in the Pareora 

 System, and the last in the Oamaru System as well. The 

 list therefore now comprises 19 species, of which the only one 

 due to Mr. McKay is Aturia ziczac: but this one alone is suffi- 

 cient to disprove the Lower Cretaceo-tertiary age of the beds, as 

 advocated by Mr. McKay. 



(2.) I omitted 11 species mentioned by Sir Julius von 

 Haast as coming from Waihao, because they are not said to 

 come from the greensands, and I did not find them in the col- 

 lection from the greensands in the Museum. In Dr. von 

 Haast's list all the beds at the Waihao are included, the lime- 

 stone as well as the greensands, and, obviously, it would have 

 been incorrect for me to have affiliated all these fossils to the 

 greensands without any evidence. Mr. McKay assumes that 

 Dr. von Haast's list is merely a copy of the one I sent him in 

 1875, and that I am responsible for it ; but this is quite a 

 gratuitous assumption on his part, and one which is also quite 

 wrong. 



(3.) Mr. McKay does not give a list of the species which he 

 accuses me of omitting, and so leads his readers to infer that I 

 have done something dreadful. I will therefore supply the 

 names, which are as follows : — Mitra enysi, Voluta attenuata 

 ( = elonyata), Trochita neozelanica, Crepidula striata, Dentalium 

 conicum var., Dentalium tenue, GuculUm attenuata, Pinna dis- 

 tansC?), Pecten venosus, Pecten beethami var. ft, Rhynchonella 

 nigricans, and the echinoderm, Amjjhidotus sidcatus. 



Now, of these 11 species of Mollusca and one Echinoderm, 

 Mitra enysi, Voluta attenuata, Trochita neozelanica, Cucxdlaa 

 attenuata, and Rhynchonella nigricans are all found in both the 

 Pareora and Oamaru Systems, and are therefore not distinctive 



* See "Proc. Linn. Soc. N.S. Wales," 2nd Series, vol. i., p. 203, etc. 

 (March, 1886). 



