Callosities pl. : of Callosity

Example:
the Callosities and barnacles are host for waht symbiont?

Taxonomy
ischial callosities, Callosity, right whales, free encyclopedia, whale, skin, Steudel, species, appearance, females, Monkeys, the monkeys, search, friction, buttocks, sleep, sitting, upright.

Defination from the web: