V 



page 



Gray, Dr. John E., F.R.S., V.P.Z.S., Pres. Ent. Soc, &c. 



An Attempt to distribute the species of Olive (Oliva, 

 Lamarck) into Natural Groups, and to define some of the 

 Species 38 



Notice of a New Genus of Uropeltidce, from Ceylon, in the 

 Collection of the British Museum 57 



Notice of the Bosch Vark (Potamocftcerus tifricunus) living 

 in the Gardens of the Society 58 



On a New Genus of Mytilidce, and on some distorted 

 forms which occur among Bivalve Shells 90 



Observations on the genus Nerita and its Operculum. ... 92 



Observations on the genus Cuscus, with the Description 

 of a New Species 100 



List of Species of Mammalia sent from the Aru Islands 

 by Mr. A. R. Wallace to the British Museum 10G 



Description of Aphroceras, a New Genus of Calcareous 

 Spougiadae, brought from Hong-Kong by Dr. Ilarland .... 113 



On Aphrocallistes, a New Genus of Spongiadse from Ma- 

 lacca 114 



Proposal to separate the family of Salamandridce, Gray, 

 into Two Families, according to the form of the Skull .... 136 



On the power of dissolving Shells possessed by the Ber- 

 nard Crab (Paf/ia'us) 144 



Description of a New Genus of Boidce from Old Calabar, 

 and a List of West African Reptiles 1 ,")4 



Description of a New Genus of Sponge {Xenosponyia) 

 from Torres Strait 229 



Additional Observations on the genus Furcella 25 3 



On a New Genus and several New Species of Uropelfidw, 

 in the Collection of the British Museum 260 



On Carpenteria and Dujardinia, two genera of a X. w 

 Form of Protozoa with attached Multilocular Shelly tilled 

 with Sponge, apparently intermediate between Bkutopoda 

 ami Porifera 206 



