Table 2
The 12 freshwater gastropod species of
Virginia Atlantic drainages considered
to be of "conservation need" in the (2005) Virginia Wildlife Action Plan. Tier 1 = critical,
Tier 2 = very high, Tier 3 = high, Tier 4 = moderate conservation need.
As Listed in the Virginia WAP
|
Tier
|
As Listed in Table 1
|
Confirmed sites
|
Fontigens morrisoni
|
1
|
Fontigens morrisoni |
2 |
| Stagnicola neopalustris |
1
|
Stagnicola neopalustris |
0 |
| Fontigens bottimeri |
2
|
Fontigens bottimeri |
1 |
| Somatogyrus virginica
|
2
|
Somatogyrus virginica |
8 |
| Fontigens orolibas |
3
|
Fontigens orolibas |
6 |
Pomatiopsis cincinnatiensis
|
3
|
Pomatiopsis cincinnatiensis |
0 |
Elimia catenaria
|
4
|
Pleurocera catenaria catenaria |
9 |
Ferrissia parallelus
|
4
|
Ferrissia rivularis |
172 |
Fossaria dalli
|
4
|
Lymnaea humilis |
92 |
Lioplax subcarinata
|
4
|
Lioplax subcarinata |
7 |
Promenetus exacuous
|
4
|
Promenetus exacuous |
5 |
Valvata tricarinata
|
4
|
Valvata tricarinata |
0 |
Return ... to the FWGVA