Note 431 — Chapter XVI
Reading edition
"Embryolog. Studien an Würmern u. Arthropoden," Mém. Acad. Sci. St Pétersbourg (Petrograd), (7), xvi., 1870.
Reading edition
"Embryolog. Studien an Würmern u. Arthropoden," Mém. Acad. Sci. St Pétersbourg (Petrograd), (7), xvi., 1870.