^'7 



CONTENTS OF VOL. XI. 



[SIXTH SERIES.] 



NUMBER LXI. 



Pii^e 



I. On some Poiuts iu the Morphology of the Arachnida (s. s.), 

 with Notes on the Chissification of the Group. By R. I. Pocock, of 

 the British Museum (Natural History). (Plates L & II.) 1 



II. Descriptions of Thirteen new Species of Terrestrial Mollusca 

 from South Africa. By James Cosmo Melvill, M.A., F.L.S., 

 and John Hexry Ponsonby, F.Z.S. (Plate III.) 19 



III. Additional Notes on the Origin of the Trachea) from Seti- 

 parous Glands. By Henry M. Bernard, M.A. Cantab, (from the 

 Huxley Research Laboratory) 24 



IV. On the Terminal Organ of the Pedipalp of Galeodes and the 

 Discovery of a Homologous Organ on the Pedipalp of Phrynus. By 

 Henry M. Bernard, M.A. Cantab, (from the Huxley Research 

 Laboratoiy) 28 



V. On the Embryology of the River-Lamprey. By Ph. Ows- 

 jannikow 30 



VI. l^otes on Aj)teri/.v Haastii. By the Hon. Walter Rothschild 43 



V^II. Simie Observations on the Mouth-orjans of Diptera. By 

 Charles O. Waterhousk 45 



VIII. Description of a new Baboon from East Africa. By Old- 

 field Thomas 46 



IX. On a new Ceiihalolophiis from Mount Kilima-njaro. By 

 Oldfield Thomas 4S 



X. On the Mexican Representative of Sciunts Aherti. By Old- 

 field Thomas 49 



XI. Note on the History of the so-called Family Teichoyiidce. By 

 Arthur Dendy, D.Sc, F.L.S., Melbourne University 50 



XII. Description of a new Species of the Cicadan Genus Pcecilo- 

 jjsaltria. By W. L. Distant 52 



XIII. Notes on two Genera of CoreidcB found in Madagascar. By 



W. L. Distant 53 



XIV. On the Physiology of the Rattle of Crotalus durissus. By 



A. E. Feoktistow', M.D 54 



Netv Books: — Catalogue of Eastern and Australian Lepidoptera 

 Ileterocera in the Collection of the Oxford University Museum, 

 — Part I. Sphinges and Bombyces. By Col. C. Swinhoe, 

 F.L.S. &c. — Fossil Plants as Tests of Climate. By A, C. 

 Skward, M. a., F.G.S., &c 58—60 



