Note 370 — Chapter X · GEOGRAPHICAL DISTRIBUTION OF LAND AND FRESH-WATER MOLLUSCA—THE PALAEARCTIC, ORIENTAL, AND AUSTRALASIAN REGIONS
Reading edition
The Amboyna group has been much the better explored. Common to both groups are one sp. each of Kaliella, Trochomorpha, Opeas, Leptopoma, Cyclotus, Helicina.