1884.] Geology and Paleontology. 181 
The cold spread northwards to Chili , Bolivia, even Brazil, and 
most of the animals perished. A few of the hardiest, as the 
guanaco, llama, vizcacha, puma, armadillo and rhea again spread 
southwards when the glacial era passed, but the great edentates 
found neither the mild climate nor the abundant vegetation that 
suited them, and remained in the as yet marshy pampa. At this 
epoch the mastcdons which had penetrated by the Isthmus of 
Panama, appeared upon the scene. The extinct fauna found in 
Patagonia must be that indigenous to the country, for since no 
animal leaves its country unless forced thereto by the struggle 
for life, it is unlikely that Brazil and Bolivia were abandoned for 
desolate Patagonia.—Dr. Tyouessart in Revue Scientifique. 
SCHLOSSER ON ANOPLOTHERIUM.—Herr Schlosser, of Munich, 
has dispelled the uncertainty respecting the relations of the gen- 
era Anoplotherium and Eurytherium. He finds that the peculiar 
second digit of the hind foot which characterizes the latter, be- 
longs as well to the former, and that the name Eurytherium is a 
Synonym. This digit, extending nearly at right angles to the 
others, was probably connected with them by a web, according 
to Schlosser, who agrees with Cuvier that the habits of these 
animals were aquatic. He refers three genera to the Anoplo- 
theriide, with the following numbers of species. Anoplotherium 
Cuv., three sp.; Diplobune Fraas, three sp ; Dacrytherium Filh., 
one sp. r 
ELEVATED CORAL Reers oF Cusa.—Mr. W. O. Crosby (Proc. 
Bost. Soc. Nat. Hist.) describes the elevated coral reefs of Cuba, and 
A. Agassiz from examination of the Florida reefs. Four coral 
terraces extend, with slight interruptions, round the entire Island 
Cuba. In the western part of the island they are the predomi- 
nating formation, and are well preserved on the summits of the 
highest hills, but further east erosion has been more rapid. The 
Owest terrace, on the northern side of the island, rises thirty feet, 
the Second rises abruptly 200 to 250 feet above it, the third is 
ge 500 feet high, and the fourth has a height of probably not 
ss than 800 feet near Baracoa. Five miles west of Baracoa 
2000 feet of the upper part of a mountain is reef limestone and 
fisaly the formation must have been 2000 feet thick. The 
‘hickness of the reefs here and upon the Island of Jamaica, where 
ted reefs reach a thickness of 2000 feet, is considered 
+ end Cr osby to prove that they were formed in shallow water 
te Period of slow subsidence, according to the theory of 
ian 4 des not appear to be any reason to doubt Mr. Crosby’s _ 
Son sere in this case, neither does there appear to be any rea- 
: needa. doubt those of Professor Agassiz in that of the Florida 
a The latter authority does not endeavor to set aside the 
