CONTENTS. yil 



Page 

 by HowABD Saunders, F.L.S., F.Z.S., &c. — Russian Central 

 Asia. By Henry Lansdell, JD.D. — Our Insect Enemies. By 

 Theodore Wood 390—394 



A Classification of the Sponges, by Prof. SoUas, D.Sc. ; On tlie 

 Pelagic Annelides of the Bay of Algiers, by M. C. Viguier ; On 

 the Organization of Tnmcatella, by M. A. Vayssiere ; On the 

 Development of Aurelia aurita and Cotylorhiza horhonica, by Dr. 

 A. Gotte; On the Original Fundamental Numbers of Medusse 

 and Echinoderms, by XVilhelm Haacke 395 — 399 



NUMBER XCVI. 



XXXVIII. The Victorella pavida of SaviUe Kent. By E. C. 

 BotTSFiELD, L.R.C.P. Lond. (Plate XII. figs. 1-3.) 401 



XXXIX. Diagnoses of the new Species of Galatheidea collected 

 during the ' Challenger ' Expedition. By J. R. Henderson, M.B., 

 F.L.S 407 



XL. Notes on Australian Lepidoptera, with Descriptions of new 

 Species. By Rudolph Rosenstock, B.A 421 



XLI. Note on Ceratiimi hirundinella (O.F.Miiller), its Variability 

 and Mode of Reproduction. By Dr. Henri Blanc. (Plate XII. 

 figs. 4-9.) 444 



XLII. Critical Observations on Prof. Leidy's " Freshwater Rhizo- 

 pods of North America," and Classification of the Rhizopods in 

 general. By Surgeon-Major Wallich, M.D , 453 



XLIII. Descriptions of three new Species of Geckos. By G. A. 



BOULENGER .' 473 



XLIV. Notice of two Lumhrici with, bifid Hinder Ends. By Prof. 

 F. Jeffrey Bell, M.A 475 



XLV. Trachelius ovum. By Sara Gwendolen Foulke 477 



XLVI. Description of the Marsupial Egg of Echidna hystrix. By 

 Edward P. Ramsay, Esq., F.L.S. , C.M.Z.S. (Communicated by Sir 

 R. Owen, K.C.B., F.R.S., &c.) 479 



XLVII. Notes from the St. Andrews Marine Laboratory (under 

 the Fishery Board for Scotland). By Prof. M'Intosh, M,D., LL.D., 

 F.R.S., &c.— No. III. (Plate XIII.) 480 



XLVIII. On the Nest and Development of Oastrosteus spinachia 

 at the St. Andrews Marine Laboratory. By Edward E. Prince. 

 (Plate XIV.) 487 



XLIX. On the Genus Fistulipora, M'Coy, with Descriptions of 

 several Species. By H. Alleyne Nicholson, M.D., D.Sc, Regius 

 Professor of Natural History in the University of Aberdeen, and 

 Arthur IL Foord, F.G.S., late of the Geological Survey of Canada. 

 (Plates XV.-XVIII.) 496 



