ORTMANN : TERTIARY INVERTEBRATES. 
271 
Leonense species: 
Ostrea ingens. 
Perna quadrisulcata. 
Cucullcea alta. 
Turritella ambulacrum. 
Struthiolaria ornata. 
all of them. 
Suprapcitagonian species : 
Ostrea ingens. 
Pecten geminatus. 
Amathusia angulata. 
■ 3 out of 6. 
This gives about the same result, although the fact is remarkable that 
of the Leonense species (5) all are found at Santa Cruz, of the others 
only a part 
Thus we see, that — taking together all the forms mentioned by both, 
Ameghino and v. Ihering — there are, at the type-locality of the Pata- 
gonian beds, 75 Patagonian species , namely: 
Schizaster ameghinoi. 
Terebratella patagonica. 
Cucullcea alta. 
Perna quadrisulcata. 
Ostrea ingens. 
Pecten prcenuncius. 
Pecten geminatus. 
Cardita incequalis. 
Lucina ortmanni. 
Cardium puelchum. 
Venus patagonica. 
Dosinia Iceviuscula. 
Turritella ambulacrum. 
Struthiolaria ornata. 
Siphonalia domeykoana. 
At the same time, ij Suprapatagonian species are found there, namely 
Cucullcea darwini. 
Area patagonica. 
Ostrea ingens. 
Pecten proxitnus. 
Pecten geminatus. 
Lucina promaucana. 
Amathusia angulata. 
Dosinia meridionalis. 
Scalaria rugulosa. 
Natica darwini. 
Struthiolaria ameghinoi. 
Marginella gracilis. 
Marginella plicifera. 
These facts would make the locality at Santa Cruz as well Patagonian 
as Suprapatagonian, and suggests strongly the identity of both. 
On the other hand, we have seen that the so-called “Leonense” species 
of Ameghino are all (5) found at Santa Cruz, while only a part of the 
“Juliense” (4 out of 9) have been found there. Of the remaining 5 
Juliense species, however, 3 have been found at San Julian ( Hypechinus 
patagonensis, Scutella patagonica , Siphonalia no ac hind) by Mr. Hatcher. 
We shall discuss this fact later. 
