New York Natural Heritage Program
Eastern Pearlshell
Margaritifera margaritifera (Linnaeus, 1758)
Bivalves
Eastern Pearlshell AMNH
Family: Pearl Mussels (Margaritiferidae)

State Protection: Not Listed
The species is not listed or protected by New York State.

Federal Protection: Not Listed

State Rarity Rank: S2
A State Rarity Rank of S2 means: Typically 6 to 20 occurrences, few remaining individuals, acres, or miles of stream, or factors demonstrably make it very vulnerable in New York State.

Global Rarity Rank: G4
A Global Rarity Rank of G4 means: Apparently secure globally, though it may be quite rare in parts of its range, especially at the periphery.


Did you know?
Margaritifera means "pearl-bearer." The city of Pearl River, NY was probably named for pearls taken from this species in nearby Muddy Brook (Strayer and Jirka 1997).

State Ranking Justification [-]
Only a handful of scattered populations are known, and most of these contain very few individuals. At present only one healthy population is known to occur in a tributary of Lake Champlain.

Short-term Trends [-]

Long-term Trends [-]