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M. von Meyer had catalogued and was preparing for publication, 
sixty-eight mammifers, thirty reptiles, thirteen birds, and eight 
batrachians — nearly all being undescribed species, and most of 
them of small dimensions. Amongst the new animals discovered 
by M. Kaup, were mentioned the Chalicotherium, a genus allied 
to Anoplotherium and Lophiodon; the Hippotherium, differing 
from the recent Equus in the possession of an additional meta- 
carpal bone, and a minute saurian, named Pisodon Colei. M. 
Kaup had determined from an examination of the remains of 
various species of rhinoceros, tapir, &c. occurring in this deposit, 
that the Fauna of the period presented a close affinity to the 
types of the Indian and Sumatran archipelago, and were entirely 
distinct from all known European mammalia. He had also col- 
lected a large series of mastodontoid remains, which completely 
proved the views of Prof. Owen, respecting the identity of the 
American Tetracaulodon with the true Mastodon. The inverte- 
brata of the deposit have been examined by M. Alexander Braun, 
and have been found to comprise 450 species, 303 of which are 
mollusca, and 103 shells, — of which, ten species only were iden- 
tical with living forms. Many of the shells approach closely in 
form to those in the Calcaire Grossier of Paris, and this circum- 
stance together with the occurrence of the Anthracotherium, 
and of an animal intermediate between the Anoplotherium and 
Palseotherium, makes it probable that the deposit belongs to 
the same age as the gypsum beds of Montmatre, and the 
Eyde and Binsted strata of the Isle of Wight. These tertiary 
beds are covered with gravel, sand, and loss, containing 
ninety-six species of shells, fifty-six of which are terrestrial, 
and forty fluviatile. Of these, seven belong to species now 
living, and nine others are probably varieties of existing spe- 
cies — the most abundant species are very rare in a living 
state, whilst those now common are of unfrequent occurrence 
in the loss. With the shells are associated the remains of 
mammoth, rhinoceros, tichorinus, &c., the bones of which have 
VOL. II. NO. XVIII. 2 B 
