912 Recent Literature. Sept 
LECHE’S ANATOMY OF THE PELVIC REGION IN THE INSECTIVvoRA! 
Crossopus fodiens, Blarina brevicauda, three kinds of Crocid 
and Chrysochloris inaurata. Thus every family of Insecti 
represented, excepting the Myrhomyide and nodonti 
The os acetubuli or fourth bone of the os inonminatum is figurei. 
in various carnivores and rodents as well as in insectivores, and 
is stated to be present in marsupials and edentates. This | 
was first noted by Cuvier, and called by him “os cotyloidiet 
but has since been very generally ignored by naturalists. 
Gaupry’s “Les ENCHAINEMENTS DU Monpe ANIMAL.” — Though 
this able and eloquent French palzontologist states that the am 
of all researches among extinct forms is to find the plan of cre 
tion, he yet admits the evolution of the animals of one | 
from those of the preceding, and believes that the full scheme í 
life-development will one day be discovered. ai 
of articulates, fishes and reptiles, are reviewed with the purpos 
of bringing into prominence the relations w : 
tinct fauna with each other and with recent forms. aa 
But while our author admits that the passage from sE 
species, genus to genus, and family to family is fully prove 
states that palzeozoic fossils have not yet furnished positive P' 
of the passage of animals from one class to another, smo k 
principal classes of marine invertebrates were present 1m ©* 
Cambrian, and the Permian reptiles are as unlike fishes as p% 
sible. oe 
Report oF THE U, S. Commissioner oF FisH ANP peti 
FOR 1881.—This bulky volume is not inferior in siz€ to. any 
predecessors in the series, and in fact is rather a | 
with 
the 
ee 
$i 
list by Professor H. E. Webster and James twer 
cheetopod worms discovered at Cape Cod, panii der rel 
species being described and figured. Mr. Jobn Ae direct s0 a 
on the protozoa and protophytes as the primary OFM ge 
1 Zur Anatomie der Beckenregion bei Insectivora mit besonderer ie 
gung ihrer morphologischen Beziehungen zu derjeni ok 
Wilhelm Leche. Mit 10 tafeln, Stockholm, 1883. e psi 
* Les Enchainements du Monde Animal dans les temps 8 lok 
primaires. Par Albert Gaudry, Paris, 1883. ; 
