bid 2 iesite, 1S crete 
Pee ae es eres ee ene ee ee 
een ee 
ai ie aoa a ews 
Zoology. 141 
are now fast accumulating materials toward a natural clas- 
sification of Annulata. The affinities of the various orders as un- 
derstood by Schneidert are a great step in advance of our present 
aalanth 2. at 
until recently received such universal recognition. e late em- 
bryological investigations of mar ma Krohn, Schneider, A. 
nap 
will be found an excellent compendium, aithful, accurate and well 
illustrated, and written with full references to s been done 
siten” has reached the second part of the second volume, and like 
every thing coming from the pen of that most accurate investi- 
* A. Schneider, Die Nematoden, Berlin, 1866. ; : 
+ I do not cite the titles of these shorter papers; they will be found in Wieg- 
mann’s Archiy; Zeitschrift f. Wiss. Zool.; Miiller’s Archiv; Mem, Acad. St. 
vomits 1 Annals Lyceum Nat. Hist., N. Y.; Journal Bost. Soc, Nat. Hist ; 
. of Utrecht. : 
¢ 0. H. Bastian, Anguillulide, Trans. Lin. Soc, xxiii; Anatomy and Physi- - 
ology of Nematoids, Trans. R. S., 1866. we 
Ebert. Die toden. 
Van Beneden. Vers Intestinaux, Paris, 1858. ~ 
an Beneden and Hesse. Recherche sur les Bdellodes, 1862. 
** Krabbe, in Trans. Dansk. Acad., v, Vi. 
tt W. Keferstein, Sipunculiden in Zeit. f. W. Zool., 1865. 
