274 Scientific Intelligence. 
lotor, etc. The species previously described by Le — and Leidy, “a 
m a similar deposit in the lead-bearing limestone of Galena, 
Iil., are also included in the list. The whole hotaber of species : 
6 genera are of “neotropical type.” Seven species of land shells 
0 fo 
cribed : Amblyrhiza Pee i and Loxomylus longide n con- 
nection with these a human instrument of shell was dicoovelals 
e third contains descriptions of Anoplanassa forcipata, a new 
genus and species of Cetacea from near Savannah, Georgia, and 
Hemicaulodon effodiens, a large Sirenian allied to the Dugong, 
from the Eocene Marl of Monmouth county, N. J. 
q 10. The Kxtinct Mammalian Fauna of " Dakete and Nebras fea, 
including an account of some allied forms from other mae 
adem my ; 
thorough revision of all his own labors and those of aa with 
regard to i 
his pref: 
work “have been gradually and continously accumulating for 
the last twenty-three years.” Thro the new facts which have 
come to light, the author has been seeabied to revise his former 
determinations of species, and to write = the characteristics of 
each with far more precision and fullness. The synonymy is We : 
worked up and contains many points ‘of historical interest. 
value of the work is much enhanced by the addition of t 
“Synopsis of the Mammalian remains of North America,” which 
occupies 84 pages of the volume, and must have cost the ‘author & 
vast amount of labor. The thirty lithographic plates show exact 
ness in delineation, and illustrate not only the species of t 
braska region, but. also several of those of other parts of the coun 
A large part of the personal observations on = eology of re 
Prot FV of the co idetibins of its fossils h een made af 
be oor ach and it is a. erefore especialy a appropriate th 
er sh ve come from his ee bes 
cole ee of the region accom anion 
te geaogy 9 & Ha io. A farther analysis “ 
work we have to defer to another ¢ occasion. 
