Contents. 



III. 



The Rate of Growth of Fishes. 

 F.R.S.E., Superintendent 

 (Plates VI. -XII.), 



By Dr. T. Wemyss Fulton, 

 of Scientific Investigations 



1. Introductory, 



2. The Relation of Length to Weight, 



3. The Average Size at Maturity, 



4. The Influence of Temperature on Growth 



5. The Sprat, .... 



6. The Witch, .... 



7. The Norway Pout, . 



8. The Sharp-tailed Lumpenus, 



9. Tables showing the Relation of Length to Weight, 



By 



IV. Notes on some rare and interesting Marine Crustacea 

 Thomas Scott, LL.D., F.L.S. (Plates XIII.-XV.), 

 Preliminary Remarks, .... 

 Copepoda : — 



Fam. Monstrillidte, 

 Fam. Choniostomatidfe, 

 Amphipoda, 

 Sympoda, 

 Description of the Plates, 



V. Report on the Operations at the Marine Hatchery, Bay of Nigg, 

 Aberdeen. By Dr. T. Wemyss Fulton, F.R.S.E., Super- 

 intendent of Scientific Investigations, 



141 

 141 

 142 

 150 

 159 

 171 

 186 

 195 

 202 

 205 



242 



242 



243 

 250 

 257 

 258 

 259 



262 



VI. On the Post-Larval and Early Young Stages of the Witch 

 {Pleuronectes cynoglossus, Linn.). By H. Chas. Williamson, 

 M.A., D.Sc, Marine Laboratory, Aberdeen (Plate XVI.), . 



270 



VII. On some Parasites of Fishes new to the Scottish Marine Fauna. 

 By Thomas Scott, LL.D., F.L.S. (Plate XVIL), . 



Preliminary Note, ..... 



Part I. Copepoda Parasita — 



Fam. Dichelestidse, .... 



Part II. Trematoda — 



Fam. Tristomatidfe, 

 Part III. Note on 



Podon Leuckarti, . 

 Description of the Plates, 



Post-larval Fish attacked by 



275 

 275 



275 



278 



279 

 280 



VIII. Ichthyological Notes. By Dr. T. Wemyss Fulton, F.R.S.E., 

 Superintendent of Scientific Investigations (Plate XVIII. ). 



The Young of the Conger, . . . .281 



A Larval Fierasfer, ..... 283 



The Sting Ray, . . . . .283 



The Pilchard, ...... 284 



The Fecundity of the Sprat, . . . .285 



An Albino Plaice, . . . . .286 



The Thickback (Solea variegata), . . . 286 



Reversed action of the Gill-cover in Plaice, . . 287 



