Note 143 — Chapter XIII
Reading edition
The Discophora are divided into the following groups:
I. Rhyncobdellidæ.
II. Gnathobdellidæ.
III. Branchiobdellidæ.
Reading edition
The Discophora are divided into the following groups:
I. Rhyncobdellidæ.
II. Gnathobdellidæ.
III. Branchiobdellidæ.