Contents (continued). 

 AprU 20, 1886. 



Page 

 Mr. O. Salvin, F.E.S. Exhibition of, and remarks upon, a living specimen of Bipalium 



kcwense, found at Hawksfold, Sussex ; 205 



Mr. E. A. Sterndale, P.Z.S. Extract from a letter addressed to Sir Victor Brooke, concerning 



a case of hybridism between Ovis hodgsoni and 0. vignei 205 



1. On some Specimens of Disease from Mammals in the Society's Qurdens. By J. Bland 



Sutton, F.R.O.S., Erasmus Wilson Lecturer on Pathology, Eoyal College of Surgeons, 

 Lecturer and Assistant Surgeon to the Middlesex Hospital 20(> 



2. On a new gj>ecies of Wild Pig from New Guinea. By Dr. O. Pinsch, O.M.Z.S. &c 217 



3. On the Eelations of the Mandibular and Hyoid Arches in a Cretaceous Shark (Hgbodus 



dtibriucnsis, Mackie). By A. Smith Woodward, F.G.S., of the British Museum 

 (Natural History). (Communicated by the Secretary.) (Plate XX.) 218 



4. On the Hybrid between Lagopus albus and Tetrao tetrix. By Eobert Collett, C.M.Z.S. 



(Plates XXL, XXII.) 224 



.). Description of a new Iguanoid Lizard living in the Society's Gardens. By G. A. 



BouLENGEK, RZ.S. (Plate XXIIL) 241 



(■). Eemarks on Specimens of Eana arvalis exhibited in the Society's Menagerie. By G. A. 



BouLENGER, P.Z.S. (Plate XXIV.) 242 



Appendix. 



On the External Characters of Eudolphi's Eorqual {Bal<enoptera borecdis). By Robert 



Collett, C.M.Z.S. (Plates XXV., XXVI.) 243 



LIST OF PLATES. 



1886. 

 PART II. 



Plate Page 



XV. Linophryne lucifer 138 



XVI. Fig. 1. Head of Ehinoceros simus. Fig. 2. Head of E. bicornis 143 



XVn. New Coleoptera of the Family Endomychidse 154 



XVIII. Bipalium kewense, in various stages of contraction 166 



XIX. Aoanthodrilus layardi 168 



XX. Hybodus dubrisiensis, Mackie 218 



Y vTj" >• Hybrid Grouse between Lagopus albus and Tetrao tetrix 224 



XXIIL Ctenosaura ery thromelas 241 



XXIV. Eana arvalis 242 



XXV 1 



XXvi I Balsenoptera borealis 243 



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