Organisms that carry disease germs are called vectors. Humans and mosquitoes are carriers of the malaria parasite. There are about 430 species of Anopheles mosquitoes in the world. Among them, 19 species of mosquitoes are vectors of malaria. The total number of mosquito species in Bangladesh is 113, the number of Anopheles mosquito species is 34 and the number of malaria vector species is 8. Notable Anopheles mosquitoes are Anopheles dirus, Anopheles annularis, Anopheles aconitus, Anopheles sundaicus, Anopheles philipnensis, Anopheles minimus, Anopheles vagus etc.