Note 46 — Chapter II · LAND AND FRESH-WATER MOLLUSCA, THEIR HABITS AND GENERAL ECONOMY
Reading edition
See on the whole subject of threads G. S. Tye, Journ. of Conch. i. p. 401.
Reading edition
See on the whole subject of threads G. S. Tye, Journ. of Conch. i. p. 401.