CONTENTS OF NUMBER 36.— Seventh Series. 



Pag* 



LXVIII. A suggested Origin of the Segmented Worms, and the 

 Problem of Metamerism. By H. M. Bernaru, M.A. Cantab 509 



LXIX. On some little-known African Silurid Fishes of the Sub- 

 family Doradinae. By G. A. Boulenger, F.R.S 520 



LXX. Descriptions of new Genera and Species of Hymenoptera. 

 By P. Cameron 530 



LXX1. Plankton Studies. — ill. On Platydorina, a new Genus of 

 the Family Volvocidce from the Plankton of the Illinois River. By 

 C. A. Kopoid, Ph.D. (Plate VII.) 541 



LXXII. On the Luminous Organs of Selachian Fishes. By 

 Rud. Burckhardt, Nat. Hist. Mus., S. Kensington 558 



LXXIII. Morniopterus Whitleyi — a new Species of Bat from 

 W. Africa. By R. F. Scharfp, Ph.D., B.Sc 569 



LXXIV. A new Bat from Peru. By Gerrit S. Miller, Jr 570 



LXXV. Reptiles and Batrachians collected in German New Guinea 

 by the late Dr. Erik Nyman. By Dr. Einar Lonnberg 574 



BIBLIOGRAPHICAL NOTICE. 

 The Story of Bird-life. By W. P. Pycrakt 58i 



PROCEEDINGS OF LEARNED SOCIETIES. 

 Geological Society 58.' 



Index 58 



%* It is requested that all Communications for this Work may be address 

 post-paid, to the Care of Messrs. Taylor and Francis, Printing Oific 

 lied Lion Court, Fleet Street, London. 



