Exhibitions and Notices {continued). 



Page 

 Miss L. E. Cheeseman,F.E.S. Exhibition of, and remarks upon, a series of lantern-slides 



illusti'ating the life-history and habits of the Ichneumon-fly, Rhyssa persiiasoria .... 194 



Dr. P. CiiALMBRS Mitchell, O.B.E., M.A., LL.D., D.Sc, F.E.S. Exhibition of, and 



remarks upon, photographs of Abbot's Duiker ( Cei^halophios spadix) 194 



Mr. D. Seth-Smitii, F.Z.S. Exhibition of, and remarks upon, lantern-slides showing the 



display of a male Monaul Pheasant {Lophophorus impeyanus) 194 



Mr. L. HoGBEN, M.A., B.Sc. Exhibition of, and remarks upon, a specimen of Amhlystoma. 194 



PAPERS. 



1. A Eevision of the Ichneumouid Genera Labiuon and Pcecilocryptus. By Eowland E. 



Turner and Jambs Waterston. (Text-figures 1-11.) I 



2. Description of the Larynx and CEsophagus of a Common Macaque {Macacus fascicu- 



laris) exhibiting several abnormal Characters. By Dr. C. F. Sonntag, Ch.B., F.Z.S. , 

 Anatomist to the Society. (Text-figures 1-5.) 27 



3. Some Australian Opiliones. By H. R. Hogg, M.A., F.Z.S. (Plates I.-III.) 31 



4. Revision of the English Species of Red Spider (Genera Tetranychus and Oligonychus). 



By Stanley Hirst. (Text-figures 1-5.) , 49 



5. On the Aortic Ligament in Indian Fishes. By D. R. Biiattaciiarya, M.Sc, Zoological 



Department, The Muir Central College, Allahabad, India, U.P. (Plates I. & II. 



and Text-figures 1-5.) 61 



6. On some Lizards of the Genus Chakides. By E. G. Boulengbr, F.Z.S. (Text- 



figures 1-4.) 77 



7. Report on the Deaths in the Gardens in 1919. By Nathaniel S. Lucas, M.B., F.Z.S., 



Pathologist to the Society. (With 4 Charts.) 85 



8. An Apodous Amia calva. By Artiiur Willby, P.R.S., F.Z.S,, McGill University, 



M(mtreal - 89 



9. On the External Characters of the South-American Monkeys. By R. I. Pocock, 



F.R.S. (Text-figures 1-13.) 91 



10. The Comparative Anatomy of the Tongues of the Mammalia.— I. General Description 



of the Tongue. By Dr. C. F. Sonntag, M. A., Ch.B., F.Z.S., Anatomist to the Society. 

 (Text-figures 6-17.) 115 



11. Notes on East African Lizards collected in 1915-1919, with Descriptions of a new 



Genus and Species of Skink and new Subspecies of Gecko. By Arthur Loveridge. 

 (Text-figure 1.) 131 



12. On Abnormal Features in the Peritoneum of a Raccoon. By 0. F. Sonntag, M.D., 



Ch.B., F.Z.S., Anatomist to the Society. (Text-figures 18-19.) 169 



13. On Abnormalities of the Abdominal Arteries of a young Panda. By C. F. Sonntag, 



M.D., Ch.B., F.Z.S., Anatomist to the Society. (Text-figure 20.) 175 



14. On the External Cliaracters of the Rate! (Mellivora) and the Wolverene {Gulo). By 



R. I. PococK, F.R.S., F.Z.S. (Text-figures 14-18.) 179 



Alphabetical List of Contributors vii 



Index of lUusti-ations xi 



Index xiii 



