IV CONTENTS. 



Page 

 of some new Fishes, by Prof. Kner ; Observations on the Struc- 

 ture of the Nervous System in Clepsine, by E. Baudelot ; On 

 Ptychochoerus plicifrons, by Dr. L. J. Fitzinger 75 — 80 



NUMBER LXXXVI. 



XI. Carcinological Gleanings. No. I. By C. Spence Bate, 

 F.R.S.&c. (Plate I.) 81 



XII. Fourth Account of new Species of Snakes in the Collection 

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

 (Plates II. & III.) 8.9 



XIII. On the Genera and Species of British Echinodermata. 

 Part I. By the Rev. Alfred Merle Norman, M.A 98 



XIV. Description of Diphloycena Hesperus, a new Species of the 

 Family Trochilidse. By John Gould, F.R.S 129 



XV. On the Species of Manatees (Manatus), and on the Difficulty 

 of distinguishing such Species by Osteological Characters. By Dr. 



J. E. Gray, F.R.S 130 



XVI. Descriptions of Species of Phytophaga received from Pulo 

 Penang or its Neighbourhood. By the Rev. Hamlet Clark, M.A., 

 F.L.S 139 



XVII. On the Literature of English Pterodactyles. By Harry 

 Seeley, F.G.S., Woodwardian Museum, Cambridge 148 



New Book : — Longicornia Malayana; or, a Descriptive Catalogue of 

 the Species of the three Longicorn Families Lamiidce, Ceramby- 

 cidee, and Prionidce collected by Mr. A. R. Wallace in the Malay 

 Archipelago, by Francis P. Pascoe, F.L.S. , Pres. Ent. Soc. Lond. 

 Part 1 153 



Note on Dr. Fitzinger's Paper on Ptychochoerus plicifrons, by Dr. J. 

 E. Gray, F.R.S. &c; Note on the so-called "Japanese" Pig 

 (Centuriosus pliciceps, Gray; Ptychochoerus plicifrons, Fitzinger), 

 by Dr. P. L. Sclater, M.A., F.R.S. ; On the Flight of Birds and 

 Insects, by E. Liais ; On the Fumariea with irregular Flowers, 

 and on the Cause of their Irregularity, by D. A. Godron ; Note 

 on Sternothcerus Adansonii from West Africa, by Dr. J. E. Gray, 

 F.R.S. &c 154—160 



NUMBER LXXXVII. 



XVIII. Conjugations of Navicula serians, N. rhomboides, and 

 Pinnularia rjibba. By H. J. Carter, F.R.S. &c. (Plate IV.) 161 



