190 General Notes. [February, $ 
Shells, broken and unbroken, are very abundant in many places, | 
The broken shells have probably been preyed upon by such Cant $ 
roids as C. borealis or Geryon, or the larger Paguridae; and many | 
fishes break the shells of the mollusks they devour. On the other) 
hand many fishes, as the cod, haddock, hake, etc., swallow shels q 
entire, digest their contents, and discharge the shells uninjured, = 
and the same is the case with star fishes. Sponges and boring | 
annelids prevent the great accumulatién of molluscan remains. f 
Vertebrate bones, whether fish or cetacean, are very rare,’ 
it is probable that the bones as well as the flesh of all vertebrates | 
that die are speedily consumed by the life at the bottom. few 
clinkers, fragments of coal and ashes from the steamers, ate 
only traces of man. : 
FıLnor’s Fossi Mammats oF Ronzon.\—The calcareous mats ; 
of Ronzon, near Puy, have during the last thirty years furt shel 
numerous mammalian remains. The beds belong to the eat 
miocene, and are not only rich in mammals, but contain species 
birds, reptiles and fishes, as well as of insects, crustacea, anai 
lusks. Notwithstanding this diversity, M. Aymard, who was © 
first to describe these mammals, remarks that, since few te 
terrestrial species occur in these palustral beds, and since the 
` cies found must have been accompanied by other forms sufi 
for their food, it may safely be said that the remains disco 
er 
aquatilis, Hyenodon leptorhynchns, Elotherium magnum ang Ve 
found seem to indicate the existence of more and larger ca 
With the exception of two species of Hyzenodon, the carii 
are small. The coprolites of Cynodon show it fed principally. 
small vertebrates, while bones belonging to animals of th® } 
don appears to have been an habitual swimmer in the P 
have furnished the deposits. The marsupials are repre 
_ some small species, most of which belong to the genus 
rium. These strata are the latest in which the genus - 
rium occurs. 
r - 
mains, he has principally used materials collected by ° 
