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]