CONTENTS. VI 1 



Page 

 XLIII. Sessile-eyed Crustaceans. Bv the Rev. T. R. R. Steb- 

 BiNG, M.A. (Plates XV. & XVI.) . . . ." .">24 



Note on Pannacelhcs f/racilis, Gray, by T. D. A. Cockerell ; On the 

 Development of .Sponges [SpongiUa JinviatiHs) , by M. Yves 

 Delage ; On the l^evelopment of the Blastodermic Layers in 

 Isopod Crustacea {Forcellio scaber), by M. Louis Roule ; On the 

 Development of the Mesoderm of Crustacea, and on that of the 

 Oro-ans derived from it, bv M. Louis Rnule 331 — 33o 



NUMBER XL VII. 



XLIV. Some Notes on British Ophiurids. Bv F. Jeffrey Bell, 

 M.A., Sec.R.M.S ." 337 



XLV. Remarks on the Genus IleteroJepis, Smith. By G. A. 



BOULENGER 344 



XLVI. Description of a new European Frog. By G. A. 

 BorLENGER '. 34G 



XLVII. Natural History Notes from II. M. Indian Marine Survey 

 Steamer ' Investigator,' Commander R. F. Iloskyn, R.N., com- 

 manding. — Series II., No. 1. On the Results of Deep-sea Dredging 

 during the Season 1890-91. By J. Wood-Mason, Superintendent 

 of the Indian Museum, and Professor of Comparative Anatomy in the 

 Medical College of Bengal, and A, Alcock, M.B., Surgeon I.M.S., 

 Surgeon-Naturalist to the Survey 353 



XL VIII. The Biological Import of Amitotic (Direct) Nuclear 

 Division in the Animal Kingdom. By H. E. Ziegler, Ph.D., 

 Extra-ordinary Professor of Zoology, Freiburg i. B 362 



XLIX. On new Species of Hideridce. By George Lewis .... 380 



L. Description of a new Seincoid Lizard from North-western 

 Australia. Bv G. A. Boulenger 405 



Ad Historiam Cucumariae, by F. Jeffrey Bell : '■^ Eupodomurus longo- 

 hardicus,^' by G. A. Boulenger ; On the Habits of Gobius 

 minuhis, by Frederic Guitel ; On the Excretory Apparatus of 

 tbe Candida, and on the Renal Secretion of the Crustacea, by 

 M. P. Marchal ; On the Circulatory and Respiratory Apparatus 

 of certain Arthropods, by M. A. Schneider ; On the Arterial 

 System of Isopods, by M. A. Schneider 406—412 



NUxAIBER XLVIII. 



LI. On the Development of Ilolothurians. By Dr. Hubert 

 Ludwig 413 



