COXTENTS OF VOL. XI. 



[SIXTH SERIES.] 



NUMBER LXI. 



Page 



T. On some Points in the Morphology of the Arachnida {s. s.), 

 with Notes on the Classification of the Group. By R. I. PococK, of 

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



II. Descriptions of Thirteen new Species of Ten-estrial Mollusca 

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

 and JoHx Hkxry Ponsoxby, F.Z.S. (Plate III.) 10 



III. Additional Notes on the Origin of the Tracheal from Seti- 

 parous Glands. By Henry M. Bernard, M.A. Cautab. (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 Phri/nus. By 

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

 Laboratory) 28 



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

 JANNIKOW 30 



VI. Notes on Apteryx Haastit. By the Hon . Walter Rothsc i u ld 43 



VII. Some Observations on the Mouth-or.-ans of Diptera. By 

 Charles O. Waterhov-se 45 



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

 field Thomas -i^ 



IX. On a nsw C'ephalolojjhiis from Mount Ivilima-njaro. By 

 Oldfield Thomas 4S 



X. On the Mexican Representative of Scinnis Aberti. By Old- 

 field Thomas 49 



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

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



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

 psalfna. By W. L. Distant 52 



XIII. Notes on two Genera of Coreidce found in Madagascar, iiy 



W. L. Dlstant 53 



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



A. E. Feoktistow, M.D 54 



Seic Books .'—Catalogue of Eastern and Australian Lepidoptera 

 Heterocera in the Collection of the Oxford University Museum. 

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

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

 Sewaud, M.A., F.G.S., &c 58— GO 



