Trichomonas vaginalisPyriform, has a single nucleus, 4 anterior flagella and a posterior one.

Sarcoptes scabeiiArthropod, round mite. Wingless, has 4 pairs of legs and mouth parts.It is found on the skin causes sarcoptic mange .

Sarcoptes scabeii miteMinute mite, has 4 pairs of legs and no wings. Mouth parts used for piercing.

Phthirus pubis found in the pubic region.Known as pubic louse, Wingless

insect