IV 



Page 

 Bateson, William, M.A., F.B.S., F.Z.S., Fellow of St. John's 



College, Cambridge. 



Exhibition of specimens of the Common Pilchard (Clupea 

 pilcliardus), showing variation in the number and size of the 

 scales 164 



On two Cases of Colour-variation in Flat-fishes illus- 

 trating principles of Symmetry. (Plate XVII.) 246 



Exhibition of specimens and drawings of a Phytophagous 

 Beetle, in illustration of discontinuous variation in colour. 391 



Beddaed, Feank E., M.A., F.E.S., Prosector to the Society. 



Notes upon the Tadpole of Xenopus Icevis {Dactyleilira 

 capensis). (Plate XHI.) 101 



On Two new Genera, comprising Three new Species, of 

 Earthworms from "Western Tropical Africa 379 



On some Points in the Visceral Anatomy of Oniitlio- 

 rliynclms 715 



Beddaed, Feank E., M.A., F.E.S., &c., and Mitchell, P. 

 Chalmees, M.A., F.Z.S. 



On the Anatomy of Palamedea cornuta 536 



Bell, F. Jeffeet, M.A., Sec. E.M.S., F.Z.S., Professor of 

 Comparative Anatomy in King's College, London. 



Kotes on Three Species of Eiver-crabs of the Genus 

 Tlielpliusu^ from Specimens collected in Eastern Africa by 

 Dr. J. W. Gregory, Mr. H. H. Johnston, C.B., and Mr. F. 

 J. Jackson 166 



On the Echinoderms collected during the Voyage of 

 H.M.S. ' Penguin' and by H.M.S. ' Egeria,' when surveying 

 Macclesfield Bank. (Plates XXIII.-XXVII.) 392 



Notice of the acquisition by the Natural-History Museum 

 of some Specimens of remarkable Corals of great size from 

 North-west Australia 694 



