CONTENTS. V 



NUMBER LXin. 



Page 



XIX. On the Original Form, Development, and Cohesion of the 

 Bones of the Sternum of Chelonians ; with Notes on the Skeleton of 

 Sphargis. By Dr. J. E. Gray, F.R.S. &c. (Plates IV., V., & VI.) IGl 



XX. On the Homologies of the Shoulder-girdle of the Dipnoans 

 and other Fishes. By Theodore Gill, M.D., Ph.D., &c 173 



XXI. Additions to the Australian CurcuUonidic. Part IV. By 

 Francis P. Pascoe, F.L.S. &c 178 



XXII. On the Silurus and Glanis of the Ancient Greeks and 

 Romans. By the Rev. W. HouaHTON, M. A., F.L.S 199 



XXm. Remarks on certain Errors in Mr. Jeffreys's Article on 

 '' The MoUusca of Eui'ope compared with those of Eastern North 

 America." By A. E. Verrill, Professor of Zoology in Yale College, 

 New Haven, Conn., U.S.A 206 



XXIV. Remarks on Cervus chilensis and Cervus antisiensis. By 

 P. L. ScLATER, M.A., F.R.S.,* Secretary to the Zoological Society of 

 London 213 



XXV. Fm'ther Remarks on the Guemul of Patagonia (^Humnela 

 leucotis). By Dr. J. E. Gray, F.R.S. &c 214 



XXVI. On the Peregrine Falcon of the Magellan Straits. By R. 

 Bowdler Sharpe, F.L.S., F.Z.S., &c.. Senior Assistant, Zoological 

 Department, British Museum 220 



Neiv Book : — Dr. Ehrenberg's Microgeological Studies 224 



Proceedings of the Royal Society 227 



On Whales in the Indian Ocean, by H. J. Carter, F.R.S. &c. ; On a 

 new Subclass of Fossil Birds (Oilontornithes), by O. C. Marsh; 

 On two new Free Sponges from Singapore, by Dr. J. E. Gray, 

 F.R.S. &c. ; On the "Capreolus" of Zonites algirus, by E. Du- 

 breuil; On the Developmental History of Petromyzon, by A. 

 Schneider; On the Parasites of the Cetaceans of the N.W. 

 Coast of America, with Descriptions of New Forms, by W. 11. 

 Dall, U.S. Coast Survey 231—238 



NUMBER LXIV. 



XXVII. On the Calcispongice, their Position in the Animal King- 

 dom, and their Relation to the Theory of Descendence. By Pro- 

 fessor Ernst Hackel 241 



