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 

 PtychochcBrus plicifrons, by Dr. L. J. Fitzinger 76 — 80 



NUMBER LXXXVT. 



XI. Careinological 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.) 89 



XIII. On the Genera and Species of British Echinodermata. 

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



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

 Family Trochilid^. 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 Lamiidcs, Ceramby- 

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

 Archipelago, by Francis P. Pascoe, F.L.S. , Pres. Eiit. See. Lend. 

 Part 1 153 



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

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

 {Centuriosus pliciceps, Gray; Ptychochoirus plicifrons, Fitzinger), 

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

 Insects, by E. Liais ; On the Fumariece 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. rhomhoides, and 

 Pi7mularia gibba. By II. J. Carter, F.R.S. &c. (Plate IV.) 161 



