Octomitidae

Oc·to·mit·i·dae

(ok'tō-mit'i-dē), A family in the protozoan class Zoomastigophorea; flagellates with six to eight flagella arranged in pairs and a body that is bilaterally symmetric; it includes the common human intestinal parasite Giardia lamblia. [octo- + G. mitos, thread]