Contents (continued). 



April 20, 1886. 



Page 

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



kewense, found at Hawksfold, Sussex 205 



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



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



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



Sutton, F.E.O.S., Erasmus Wilson Lecturer on Pathology, Royal College of Surgeons, 

 Lecturer and Assistant Surgeon to "the Middlesex Hospital 20<> 



2. Ou a new Species of Wild Pig from New Guinea. By Dr. O. Finsch, C.M.Z.S. &c 217 



3. On the Relations of the Mandibular and Hyoid Arches in a Cretaceous Shark {Hgbddus 



dubrisiensis, 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 albits and Tetrcw tetrix. By Robert Collett, C.M.Z.S. 



(Plates XXI., XXII.) 224 



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



BouLEXGEB, F.Z.S. (Plate XXIIL) 241 



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



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



Appendix. 



On the External Characters of Rudolphi's Rorqual {Balanoptera borealis). By Robert 



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



LIST OF PLATES. 



1886. 

 PART II. 



Plate Fage 



XV. Linophryne lucifer ■ 138 



XVI. Fig. 1. Head of Rhinoceros simns. Fig. 2. Head of R. bicornia 143 



XVll. New Coleoptera of the Family Endomychidse 154 



XVni. Bipalium kewense, in various stages of contraction 166 



XIX. Acanthodrilus layardi 168 



XX. Hybodus dubrisiensis, Mackie 218 



-j^i* \ Hybrid Grouse between Lagopus albus and Tetrao tetrix 224 



XXm. Ctenosaura erjthromelas 241 



XXIV. Rana arvalis 242 



• I BalsBnoptera borealis 243 



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