Decembee 31. ^Brice S«. 



THE JOURNAL 



or 



TRE LINNEAN SOCIETY. 



Vol, XXV. ZOOLOGY. No. 165. 



CONTENTS. 



Page 

 I. The Pboblem oe Utility : Are Specific Characters 

 always or generally Useful ? By Alfred E. 



Wallace, LL.D., f'r.S., F.L.S 481 



II. On the Fistulose PolymorpliincB, and on the Grenus 

 Bamulina. By T. E,T7peb,t Jokes, P.E.S., and 



E. Chapman, A.L.S., P.E.M.S 4015 



HI. Note on the Eormation of tbe Epiphragtn of Ildix 

 aspersa. By Prof. Gr. J. Allmak, M.D., E.E.S., 



E.L.S 517 



IV. Descriptions of New Species of Forficulidai in the 

 Collection of the British Museum (Nat. Hist.), 

 S. Kensington. By W. E. Kirby, E.L.S., E.E.S. 



(Plate XX.) 520 



V. The Mesial Eins of Oanoids and Teleosts. By Prof. 

 T. W. BiiinoE, D.Sf. (Communicated by Prof. Gr. 

 B. Howes, Sec. Linn. Soc.) (Plates XXI.-XXIII.) 530 



Index, Titlepage, and Contents. 



See Notice on last page of Wrapper. 



LONDON: 



SOLD AT THE SOCIETY'S APAETMENTS, BURLIJN^GTON HOUSE, 



PICCADILLY, W., 



AND liV 



LONGMANS, GEEEN, AND CO., 



WILLIAMS AND NOEGATE. 

 1896. 



