IV CONTENTS. 



Page 

 Neiv Book : — A Mouograpb of the Land aud Freshwater Mollusca of 



the British Isles. By John W. Taylor. Part 1 126 



On the Embrvolog'y of Gehia Uttoralis, by P. Butschinsky, of the 

 ITniversity of Odessa ; On Gill-like Organs in certain Species of 

 Sipuncuh'is, by Dr. W. Fischer, of Bergedorf 128, 131 



NUMBER LXXXVI. 



XIV. On the Luminosity of Midges {Chtronojnidce). By Peter 

 Schmidt, of the Zoological Laboratory of the Imperial University at 



St. Petersburg ^. 133 



XV. Description of a new Eagle-Ray from Muscat. By G. A. 



BOULENGER, F.R.S ". 141 



XVI. On the Devonian Ichthyodorulite, Bysmcanthus. By A. 

 Smith Woodward, F.L.S '. 142 



XVII. On Thecodontosaurus &wA Palaosaurus. By H. G. Seeley, 

 F.RS ' 144 



XVIII. Descriptions of Four new Species of Terrestrial Mollusca 

 from South Africa. By James Cosmo Melvill, M.A., F.L.S., and 

 John Henry Ponsonijy, F.Z.S. (Plate XII.) 103 



XIX. On a New aud Natural Grouping of some of the Oriental 

 Genera of Myr/alomorjjhai, with Descriptions of new Genera and 

 Species. By R. I. Pocock. (Plate X.) lG.j 



XX. List of the Freshwater Fishes collected by Mr. A. Everett on 

 Palawan and Balabac. By G. A. Boulenger, F.R.S 185 



XXI. Diagnoses of Two new East-African Mammals. By Old- 

 field Thomas 187 



XXII. An Analysis of the Mammalian Generic Names given in 

 Dr. C. W. L. Gloger's ' Naturgeschichte ' (1841). By Oldfield 

 Thomas 189 



XXIII. Descriptions of new Coleoptera from New Zealand. By 

 Captain Thos. Broun 194 



On some Insects collected in the State of Chihuahua, Mexico, by 

 T. I). A. Cockerell, Entomologist of the New Mexico Agricul- 

 tural Experiment Station ; On the Nutrition of Two Commensals 

 {Ncreilepas and Pinnotheres), by JNI. Henri Coupin 204, 210 



