VI 



Page. 



Tims, H. W. Maeett, M.D., F.Z.S., Lecturer on Biology and 



Comparative Anatomy, Westminster Hospital Medical School. 



On the Tooth-genesis in the Canidce. (From the Huxley 



Research Laboratory, Eoyal College of Science, London.) 



(Communicated by Prof. Gt. B. Howes, Sec. Linn. Soc.) 



(With 8 woodcuts.) , 445 



Waitb, Edgab, R., F.L.S., Zoologist, Australian Museum, Sydney. 

 On the Egg-cases of some Port Jackson Sharks. (Plate XII.) 325 



Wallace, Alfbed R., LL.D., F.R.S., F.L.S. 



The Problem of Utility : Are Specific Characters always or 

 generally Useful ? 481 



Waters, Abthub Wm., F.L.S. 



On Mediterran^n and New-Zealand Heteporte and a Fenestrate 

 Bryozoa. (Plates VI. & VH.) 255 



West, G. S., A.R.C.S., Scholar of St. John's College, Cambridge. 

 (From the Biological Laboratory, Roy. Coll. Sci. London.) 

 On a New Species of Distomum. (Communicated by Prof. G. 



B. Howes, Sec. Linn. Soc.) (Plate XI.) 322 



On two little-known Opisthoglyphous Snakes. (Communicated 

 by Prof. G. B, Howes, Sec. Linn. Soc.) (Plate XVIII.) .... 419 



