CONTENTS. vil 



Page 

 North America, first collected by Col. E. Jewett. By Philip P. 

 Carpenter, B.A., Ph.D. 394 



XLI. Diagnoses of new Forms of MoUusca collected by Col. E. 

 Jewett on the West Tropical Shores of North America. By Philip 

 P. Carpenter, B.A., Ph.D 399 



XLII. Notices of British Fungi. By the Rev. M. J. Berkeley, 

 M.A., F.L.S., and C. E. Broome, Esq. (Plate XIV.) 400 



XLIII. Notes on the Palaeozoic Bivalved Entomostraca. No. V. 

 Miinster's Species from the Carboniferous Limestone. By T. Rupert 

 Jones, F.G.S., and J. W. Kirkby, Esq 404 



XLIV. The Darwinian Hypothesis supported by Observations on 

 Crustacea. By Fritz Muller, of Desterro 410 



XLV. Remarks on Observations contained in Dr. GUnther's Work 

 on the Reptiles of British India. By T. C. Jerdon, Surgeon-Major 416 



Proceedings of the Royal Society J Zoological Society 419 — 431 



Investigations on Eggs with a Double Germ, and on the Origin of 

 Double Monsters in Birds, by M. C. Dareste ; On two Starfishes 

 from Costa Rica, by E. von Martens ; Occurrence of Calluna vul- 

 garis in Newfoundland ; On a new Species of Bat from Zambesia, 

 by Dr. J. Kirk; Preservation of Starfishes with their Natural 

 Colours, by A. E. Verrill 432—436 



NUMBER XC. 



XLVI. On a new Form of Alternation of Generations in the Me- 

 dusae, and on the Relationship of the Geryonidce and JEginidce. By 

 Dr. Ernst Haeckel 437 



XLVII. Notices of British Fungi. By the Rev. M. J. Berkeley, 

 M.A., F.L.S., and C. E. Broome, Esq.' (Plates XV., XVI., XVII.) 444 



XLVIII. A Contribution to the Ichthyology of West Africa. By 

 Dr. Albert Gunther 452 



XLIX. On the Sexes of the Alcyonaria. By M. Lacaze-Du- 

 thiers 453 



L. Observations on Raphides and other Crystals in Plants. By 

 George Gulliver, F.R.S 456 



LI. On the History and Habits of the Epeira Aurelia Spider. By 

 Frederick Pollock, Esq 459 



LII. Notes on the Hydroida. By Prof. Allman, F.R.S 465 



