VI CONTENTS. 



Page 

 XLII. Oa the Mecliaiiiciil Genesis of tlie 8.;ales of Fishes. ]Jv 



Jt)HN A. Ryder \ 248 



XLIII. Upon the Identity of some of the Types of Uiplopoda con- 

 tained in the Collection of the British Museum, tog-ether with Descrip- 

 tions of some new Species of Exotic luUchc. By R. I. PococK. 



(Plate XVI.) ' 248 



XLIV. Descriptions of some new Genera and Species of Lonoficorn 

 Coleoptera. By C. J. Gahan, M.A., of the Brit. Mus. (Nat. Hist.). 2.j4 



Proceedings of the Geological Society 259, 2(50 



The Dates of Moore's ' Lepiiioptera Indica,' by C. Davies Sherborn ; 

 Diffuse Pigmentation of tlie Epidermis of the Oyster due to pro- 

 longed exposure to the light : Regeneration of Shell and Loss of 

 Adductor Muscle ; The Hermaphroditism and ^'^iviparity of the 

 Oysters of the North-west Coast of the United States ; Large 

 Variations in the Metamorphosis of the same Species ; Absorp- 

 tion in the Actini<B and the Origin of the Mesenterial Filaments, 

 by A'ictor Willem, Assistant in Zoology at the Univ. of Ghent ; 

 On Phagocytosis observed, in the living Animal, in the Gills of 

 Lamellibranch Mollu-ca, by M. de Bruyue 260 —260 



NUMBER LXIV. 



XLV. Preliminary Account of the Freshwater Medusa of Lake 

 Tanganyika. By R. T. Gunther, B.A. (Plates XIII. & XIV.) . . 269 



XLVI. Notes on a Specimen of Sowerby's Whale (Mesoplodon 

 buJens), stranded on the Nori'olk Coast. By T. Sduthwell, F.Z.S., 

 and Sidney F. Habmer, M.A., F.Z.S. (Plate XV.) 275 



XLVII. Note on the Genera Geothauma and Gijyosiroplm. By 

 Edgar A. Smith 284 



XLVIII. On the Variety cinereo-rii<jer, Wolf, of Lima.v maximus, L. 

 By AValteb E. Collinge, Demonstrator of Biolog-y in Ma,son 

 College, l^>irminghani 288 



XLIX. On some Japanese >'Scaphidiid(e. By G. Lewis, F.L.S. . . 288 



L. Description of a new Transitional Form of Oniithoptera be- 

 longing to the Subgenus Priamoptera. By Robert H. F. Rippon. 294 



LI. 'Note on Apiery.v Haastii. By the Hon. Walter Rothschild. 20L> 



TJI. Contributions to the Development of the Tooth-Rudiments 

 in Rodents. By Paul Freund 301 



LI II. On the Habits of a Species of Tn'ffona. By J. H. Hart, 

 F.L.S., Royal Botanic Gardens, Trinidad . 327 



LIV. Description of Two new " Pocket-Mice " of the Genus Hete- 

 romt/s. By Oldfjeld Thomas 329 



LV. Anevf Pedalion. ByW.T.CALMAN,UniversityCollege, Dundee. 332 



Neto Book : — British New Guinea. By J. P. Thomson 334 



Classification of the Pelecypoda. — Emendatory Note, by B. B. Wood- 

 ward, F.(jt.S. &c. ; A Contribution to the Developmental Cycle 

 of the Compound Ascidians, by Jidian Hjort, of Chiistiauia ; The 

 Develo])nu'nt of the Intestinal (iregarines of Marine Worms, by 

 M. Louis Leger 335'-339 



