ORTMANN I TERTIARY INVERTEBRATES. 



299 



establishes the identity at least of a part of the Navidad series with the 

 Patagonian beds. Whether of all of it, remains doubtful, since we do 

 not possess any stratigraphical observations on the Navidad beds, and we 

 shall become acquainted, further on, with facts, which point to the possi- 

 bility that these Chilian beds are not a unit, but contain horizons of dif- 

 ferent age. 



Moericke (1896, p. 593), following Steinmann, included the Patagonian 

 beds of Santa Cruz in the "Navidad stage," and makes (p. 597) it 

 Miocene, with a suggestion of Oligocene, which agrees well with our re- 

 sults, which make the Patagonian beds Lower Miocene. 



Relations to New Zealand were discovered first by Zittel (1864): he 

 directly identifies some New Zealand species with Patagonian. Accord- 

 ing to the list of New Zealand fossils published in 1873 by Hutton, and 

 his subsequent writings on this fauna (1885), I have been able to compile 

 the following list of identical and closely allied species. 



(In the following O means Oamaru (Oligocene) ; P means Pareora 

 (Miocene); W means Wanganui (Pliocene); R means Recent. 



A. Identical species : 



Cellaria fistulosa. P 



Heteropora pelliculata. P 



Rhynchonella squamosa. 



Magellania lenticularis. 0, P, R 



Tercbratella dorsata. P 



Terebratella patagonica. 0, P 



Cucullcea a/fa. 0, P 



Limopsis insolita. P 



0strea ingens. 



Gryphcea tarda. 



Mytilits magellanicus. 

 Scalaria rugulosa. 

 Crepidula gregaria. 

 Natica daruuini. 

 Turritella ambulacrum. 



0,P 



0, /'(Chatham Isl.). 



P, W 



0,P 



P 



P 



P, W 



B. Closely allied species : 



Melicerita triforis M. angustiloba. 



Rhynchonella plicigera R- nigricans. 



Leda oxyrhyncha L. sp. (Zittel). 



Malletia ornata M. australis. 



Pecten proximus P- athleta. 



Dentalium sulcosiim D. mantelli. 



Solariella dautzenbergi 5 stoliczkai. 



Sigapatella americana $". maculata, 



Genus Struthiolaria Genus Struthiolaria. 



Siphonalia domeykoana S. dtlatata. 



Valuta ameghinoi V. pacifica. 



P 



0, P, W, R 



P 



P, W,R 







P 







0, P, W, R 



P, W, R 



P, W,R 



0, P. W, R 



