THE LARVAE OF MALAYAN ANOPHELES. 



163 



Abdomen : On segment i. a fully developed stellate tuft composed of ten to twelve 

 short narrow leaflets with, ill-defined terminal filaments. On segments ii.-vii. large 

 stellate tufts composed of fifteen to eighteen leaflets mth well defined terminal 



Fig. 4. Anopheles aconitus, Don. 



filaments. The average total length of the leaflets on the mid-abdominal segments 

 is 0*08 mm. ; the average relation of length of filament to total length of leaflet is as 

 1 '5 to 4. The filament is deeply indented at its base and is sharply pointed. 



2. Anopheles aitkeni, James, (figs. 5, 6). 

 Average length at maturity 3*5 mm. 



Fig.^5. Anopheles aitkeni, James (Type !.)• 



Head : Anterior dypeal hairs. Type I. (fig. 5) : Inner hair long and stout, middle 

 third with short lateral branches, elsewhere the shaft is bare ; outer hair short, one- 



