ii. In the living tissues of birds and mammals.
j. Vulva longitudinal. In the skin and cellular tissues of birds. Cytoleichidæ.
This family contains two species, both occurring in the United States on the common fowl. Laminosioptes cysticola occurs on the skin and also bores into the subcutaneous tissue where it gives rise to a calcareous cyst. Cytoleichus nudus is most commonly found in the air passages and air cells.
jj. Vulva transverse. In the skin of mammals and birds Sarcoptidæ
k. Anal opening on the dorsum.
l. Third pair of legs in the male without apical suckers. On cats and rabbits. Notœdres Rail.
The itch mite of the cat, N. cati ([fig. 61]) has been recorded on man.
ll. Third leg in the male with suckers. On bats Prosopodectes Can.
kk. Anal opening below.
l. Pedicel of the suckers jointed; mandibles styliform and serrate near the tip. Psoroptes Gerv.