| |
Species |
Oreohelix tenuistriata (Thin-ribbed Mountainsnail) |
Thin-ribbed Mountainsnail |
| |
Species |
Oreohelix vortex (Whorled Mountainsnail) |
Whorled Mountainsnail, Vortex Banded Mountain Snail, Whorled Mountain Snail |
|
Species |
Oreohelix waltoni (Lava Rock Mountainsnail) |
Lava Rock Mountainsnail, Lava Rock Mountain Snail, Walton's Banded Mountain Snail |
|
Species |
Oxychilus alliarius (Garlic Glass-snail) |
Garlic Glass-snail, Garlic Snail, Garlic Glass Snail |
|
Species |
Oxychilus cellarius (Cellar Glass-snail) |
Cellar Glass-snail, Cellar Glass Snail |
|
Species |
Oxychilus draparnaudi (Dark-bodied Glass-snail) |
Dark-bodied Glass-snail, Drapanaud's Glass Snail |
| |
Species |
Oxyloma hawkinsi (Boundary Ambersnail) |
Boundary Ambersnail |
|
Species |
Oxyloma haydeni (Niobrara Ambersnail) |
Niobrara Ambersnail |
| |
Species |
Oxyloma nuttallianum (Oblique Ambersnail) |
Oblique Ambersnail |
| |
Species |
Oxyloma sillimani (Humboldt Ambersnail) |
Humboldt Ambersnail |
| |
Species |
Paralaoma servilis (Pinhead Spot) |
Pinhead Spot |
|
Species |
Physa jennessi (Obtuse Physa) |
Obtuse Physa |
| |
Species |
Physa megalochlamys (Cloaked Physa) |
Cloaked Physa, Annual Vernal-grass |
| |
Species |
Physa skinneri (Glass Physa) |
Glass Physa |
|
Species |
Physella acuta (Wandering Physa) |
Wandering Physa, Pewter Physa, Polished Physa |
