zOz 
8. Ciilex annuliorh, Theobald (1901). 
Only one specimen of this species was taken by Colonel Peterkin, at 
Vacoa. 
9. Culex fou'Uri, n. sp., d’Emmerez de Charmoy (1908). 
Not common. A few specimens obtained from larvae caught by 
Major P. Fowler. 
10. Ciilex tigripes, d’Emmerez and Daruty (1900). 
Culex maculicrura, Theobald (1901). 
Very common, and one of the largest species known. The lame 
are carnivorous and they also eat each other. 
11. Culex fatigans, Wiedemann. 
Culex anxifer, Coquerel (Bigot). 
The commonest of all the species. It is very numerous all over the 
island and very troublesome during the night. The larva are to be 
seen in all artificial collections of water. 
12. Culex. spec, incert (male). 
A single specimen, caught b)' Major Fowler agrees in some respect 
with C. aniwlioris \ but it is evidently distinct, though not 
sufficiently well preserved to render identification possible. 
ANOPHELINES THAT TRANSMIT MALARIA 
Pyrefophorus cosialk 
228 examples were caught at Clairfond Marsh between February 4, 
1908, and February 20, 1908. 73 of these were examined, of which 
10 were infected (i.e. 137 per cent.). 
? Myzorhynchns mauriiianus 
54 examples which were fed on blood containing crescents and other 
gametes gave one positive result. (Round pigmented cells ? dead 
zygotes eight days after the first meal.) <;6 other examples caught 
wild were negative. 
