ORTMANN : 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 ( 1 864) : 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) ; IV means Wanganui (Pliocene) ; R means Recent. 
A. Identical species : 
Cellaria fistulosa. P 
° Ostrea ingens. 
0,P 
Heteropora pelliculata. P 
Gryphcea tarda. 
0, P (Chatham Isl.). 
Rhynchonella squamosa. 0 
Mytilus magellanicus. 
P, W 
Magellania lenticular is. 0, P, R 
° Scalaria mgulosa. 
0,P 
' Terebratella dorsata. P 
° Crepidula gregaria. 
P 
Terebratella patagonica. 0, P 
°Natica darwini. 
P 
Cucullcea alta. 0, P 
Limopsis ins o lit a. P 
Turritella ambulacrum. 
P, W 
B. Closely allied species: 
Melicerita triforis 
P 
Rhynchonella plicigera 
0, P, l V, R 
Leda oxyrhyncha 
P 
Malletia ornata 
P, W, R 
Pecten ' proximus 
0 
Dentalium sulcosum 
P 
Solariella dautzenbergi 
0 
Sigapatella americana 
A. maculata. 
0, P, W } R 
Genus Struthiolaria 
P, W, R 
Siphonalia domeykoana 
P, W, R 
Voluta ameghinoi 
0, P, W, R 
