Contents (continued). 
April 20, 1886. 
P 
Mr. O. Salvin, F.R.S. Exhibition of, and remarks upon, a mine specimen of Bipalium ne 
kewense, found at Hawksfold, Sussex....--...++-.. Bis, ovis viw.e ¢ bcscvaidiae ates eee 
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 O. vignei ......-...-+++++ ea istiniawe:s 
1. On some Specimens of Disease from Mammals in the Society’s Gardens. By J. Brann 
Surron, F.R.0.8., Erasmus Wilson Lecturer on Pathology, Royal College of Surgeons, 
2 
Lecturer and Assistant Surgeon tothe Middlesex Hospital .....................- 206 
2. On a new Species of Wild Pig from New Guinea. By Dr. O. Finscu, C.M.Z.S. &e. .... 217 
3. On the Relations of the Mandibular and Hyoid Arches in a Cretaceous Shark (Hybddus 
dubrisiensis, Mackie). By A. Surra Woopwarp, F.G.S., of the British Museum 
(Natural History). (Communicated by the Secretary.) (Plate XX.).............. 218 
4. On the Hybrid between  fagopes albus and Tetrao tetrix, By Roserr Coutert, C.M.Z.S. 
(Plates XXI., XXII.) ....... sicipth t clals wintercre! otaiepetele pac eieie trol stetsteiets Visio ate eqateneten « 224 
5. Description of a new Iguanoid Lizard living in the Society's Gardens. By G. A. 
Boutencer, F.Z.8. (Plate XXIII.) .......... ciate tein teete eels seieeiere riper reac et 
6, Remarks on Specimens of Rana arvalis exhibited in the Society’s Menagerie. By G. A. 
BoutenceEr, F.Z,8. (Plate XXIV.) ........:.---- ORE RE IIA Hc ASIC ee eater 
APPENDIX. 
On the External Characters of ee a a (Balenoptera borealis). By Ropert 
Couiett, C.M.Z.8. (Plates XXV., XXVI_.)........+2-2-2-- 00 BEER Scot oee 2s 243 
LIST OF PLATES. 
1886. 
PAS Was 
Plate Page 
XY. Linophryne lucifer .......+....-+.00: afar giajensts walavn sieinlehe stats 138 
XVI. Fig. 1. Head of Rhinoceros simus. Fig. 2. Head of R. bicornis 143 
XVII. New Coleoptera of the Family Endomychide ........-- eelaaree kore 
XVIII. Bipalium kewense, in various stages of contraction ....--...-. 166 
XIX. Acanthodrilus layardi .......,.+-...-. satel etelete sf steer i Gone aks: 
XX. Hybodus dubrisiensis, Mackie .,.......... cl ae ate, eayeeiaat «> 218 
XXIL cir  Hybria Grouse between Lagopus albus and Tetrao tetrix ...... 224 
XXIII. Ctenosaura erythromelas...........cseceeeeresteceneetces . 241 
XXIV. Rana arvalis........ .... Wahdln:0.6 gia8, ein Bio's ounte sic leinis piacotgs ccee 242 
ae } Balanoptera borealis Re EiBee ealasaledaiefaisiatoieia’ whelsie ioichereN rate ain oles earns 
TES ieee Wes 1 a ee 
‘NOTICE. 
According to present arrangements the ‘ Proceedings’ are issued in four parts, 
as follows :— 
Part I. containing papers read in January and February, on June Ist. 
3 e % » March and April, on August Ist. 
Iii. es a », May and June, on October Ist. 
IV. 4 “7 »» November and December, on April Ist. — 
The price is 12s. per part for the edition with coloured, and 3s. per part for 
that with uncoloured Plates. 
205 
a 
