CONTENTS OF VOL. XVIII. 



[THIRD SERIES.] 



NUMBER cm. Pjge 



I. Description of a new Species of Marine Worm {Phenacia pul- 

 chella). By Edward Pakfitt. (Plate I.) 1 



II. On the Affinities of Peridinium Cypripedium, Jas.-Clk., and 

 Urocentrum Turbo, Ehr. By Prof. H. James-Clark, A.B., B.S., 

 Soc. Am. Acad 2 



III. On the Vascular and Nervous Apparatus of the Larvae of the 

 Marine Crustacea. By M. Z. Gerbe 7 



IV. On the Menispermacea. By John Miers, F.R.S., F.L.S. &c. 12 



V. Notulse Lichenologicae. No. VII. By the Rev. W. A. 

 Leighton, B.A., F.L.S. — Dr. Wm. Nylander on three European 

 Species of Thelocarpon 23 



VI. Fifth Account of new Species of Snakes in the Collection of 

 the British Museum. By Albert Gunther, M.A., M.D., Ph.D. 

 (Plates V. & VII.) 24 



VII. Remarks on some Fishes from the River Amazons in the 

 British Museum. By Dr. Albert Gunther 30 



VIII. On the Fossils contained in a Lower Greensand Deposit of 

 Phosphatic Nodules in Bedfordshire. By J. F. Walker, F.C.S., 

 Sid. Suss. College, Cambridge 31 



IX. Notes on the Palaeozoic Bivalved Entomostraca. No. VII. 

 Some Carboniferous Species. By T. Rupert Jones, F.G.S., and 

 James W. Kirkby, Esq 32 



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

 M.A., F.L.S., and C. E. Broome, Esq., F.L.S. (Plate II.) 61 



XL On the Rhabdoccela. By E. Mecznikow. (Plate VIII.) ... 57 



XII. On the Reproduction and Embryogeny of the Aphides. By 



M. Balbiani 62 



XIII. Further observations on the Reproduction and Embryogeny 



of the Aphides. By M. Balbiani 65 



On the Metamorphoses of the Marine Crustacea, by M. Z. Gerbe ; 

 On the Mi-lou or Sseu-pou-siang, a Mammal from the north of 

 China, which forms a new Section in the Family Cervidce, by A. 

 Milne-Edwards ; On the Pleuronectida; of the Genus Zeugopterus, 

 and the Structure of their Branchial Cavity, by J. Steenstrup 69 — 72 



