343 
ORDINARY MEETING. 
Frivay, 8ta May, 1903. 
E. A. Smrtu, F.Z.S., etc., President, in the Chair. 
The following communications were read :— 
1. ‘*On the want of a knowledge of the Animals of the genus Oliva 
as a means to the determination of the species.”” By F. G. Bridgman. 
2. ‘Notes on some British Eulimide.”’ By E. R. Sykes, B.A., 
F.L.S. 
8. ‘Note on the occurrence of Planorbis marginatus, Drap., and 
Limnea pereger (Miill.) in the Post-Plocene of Bognor, Sussex.” By 
Alexander Reynell. 
4. ‘Note on the supposed locality ‘Sulgranees,’ whence Dr. J. E. 
Gray’s type-specimens of Indian Jurassic Ammonites were said to have 
been obtained.” By W. T. Blanford, LL.D., F.R.S. 
Exhibits were placed on the table by the following :— 
G. B. Sowerby: A skiagraph of the remarkable specimen, recently 
exhibited, of a /’stulana piercing a Mitra; a Spondylus, believed to be 
new, from the Moluccas; a fine specimen of Ostrea megodon, Hanley. 
E. A. Smith: Specimens of Petricola pholadiformis from Ostend— 
the shell is supposed to have been imported with American oysters. 
H. J. Van Stone: Embryonic shells of Planorbis corneus, showing 
sinistral characters, with drawings. 
Rey. R. Ashington Bullen: Agriolimax agrestis, L., from the dark 
sand of Harlyn Bay, late Celtic cemetery,—a new record. 
R. H. Burne: Examples of commensal, symbiotic, and parasitic 
relationships between molluscs and other invertebrates. 
ORDINARY MEETING. 
Frivay, 1278 Junn, 1903. 
E. A. Smirn, F.Z.S., etc., President, in the Chair. 
The following communications were read :— 
1. ‘A list of species of Mollusca from South Africa, forming an 
Appendix to G. B. Sowerby’s ‘Marine Shells of South Africa.’” By 
KE. A. Smith, F.Z.S. 
2. ‘* Notes on some Jurassic shells from Borneo, including a new 
species of Zrigonia.” By R. Bullen Newton, F.G.S. 
3. ‘Description of Marginella lateritia, u.sp., from the Andaman 
Islands.” By J. C. Melvill, M.A., F.L.S., and E. R. Sykes, B.A., 
HUES: 
4. ‘New Mollusca from New Zealand.” By the Rev. W. H. 
Webster. 
VOL. V.—OCTOBER, 19038. 24 
