Linw. Soc. Journ Bor. VoL. XX PL48. 
X 200 
PTWYTVVVUVVFYTYTWYVYTETVVEVVTVYVYTTTTTYVYVVVVUTI 
SUTLAE x 600 
x 400 
T.Kitton del. 
C 
Jarman sc. 
* 
E 
Lb 
4. 
SOCOTRAN DIATOMACE 
