Vol.18. SIXTH SERIES. No. 106. 



THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTORY, 



INCLUDING 



ZOOLOGY, BOTANY, and GEOLOGY. 



''<is:^u:;^m^^^^^- 



OONDirCTEJD BY 



ALBERT C. L. G. GUNTHER, M.A., M.D., Ph.D., F.R.S., 

 WILLIAM CARRUTHERS, F.R.S., F.L.S., F.G.S., 



AND 



WILLIAM FRANCIS, Ph.D., F.L.S. 



BEING A CONTINUATION OP THE " ANNALS " COMBINKD WITH 

 MESSBS. LOUDON AND CHABLESWOKTH's ''MAGAZINE OF NATURAL HISTOBY." 



WITH FOUR PLA.TES. 



Illustrative of Mr. H. M. Kyle's Paper on the Nepbridia, Reproductive Organs, 

 and Post-larval Stages of Aretiicola, and Messrs J. C. Melvill and J. H. 

 Ponsonby's on new MoUusca from South Africa. 



LONDO]^: 

 TAYLOE AND FEANOIS, EED LION COUET, PLEET STEEET. 



Sold by Simpkin, Marshall, Hamilton, Kent, & Co., Ld. ; Whittaker & Oo. : Bailliere, 

 Paris: Maclachlan and Stewart, Edinburgh: Hodges, Figgis, & Co., Dublin : and Asher, 

 Berlin. 



