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Maryland Checklist - Genus: Alasmidonta - all-time (Total: 4)
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Adventive
\n
Coastal Plain only
\n
Endangered (Federal)
\n
Endangered (MD)
\n
Excluded
\n
Exotic
\n
Extinct
\n
Extirpated
\n
Extralimital
\n
G1 (Highly globally rare)
\n
G1G2 (Highly globally rare)
\n
G2 (Globally rare)
\n
G2G3 (Globally rare)
\n
G3 (Globally rare/local)
\n
G3G4 (Globally vulnerable)
\n
G4
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G4G5
\n
G5
\n
Garrett only
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GH (No known extant occurrences)
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GU (Global status uncertain)
\n
Hybrid
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In need of conservation
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Invasive
\n
Nativity Uncertain
\n
Non-native
\n
Reviewable (MD/DCRC)
\n
S1 (Highly state rare)
\n
S1B (Highly state rare breeder)
\n
S1M (State rare migrant)
\n
S1N (State rare non-breeder)
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S1S2 (Highly state rare)
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S1S2B (State rare breeder)
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S2 (State rare)
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S2B (State rare breeder)
\n
S2B (State rare breeder)
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S2S3 (State rare)
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S2S3B (State rare breeder)
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S3 (Watch list)
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S3B (State watchlist breeder)
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S3S4
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S3S4B (State watchlist breeder)
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S4SE
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SH (Historical)
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SHB (State historical breeder)
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SR (State rare)
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Status Uncertain
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SUB (Status uncertain breeder)
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SXB (State extirpated breeder)
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SXM (State extirpated migrant)
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Threatened (Federal)
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Threatened (MD)
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Undescribed
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Vulnerable
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Waif
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Western MD only
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Worcester only
\n
Photos
Common Name
Genus
Species
Records
Category
Family
Order
Class
Kingdom
1
Dwarf Wedgemussel
Alasmidonta
heterodon
17
Freshwater Bivalves
Unionidae
Unionoida
Bivalvia
Animalia
2
Triangle Floater
Alasmidonta
undulata
30
Freshwater Bivalves
Unionidae
Unionoida
Bivalvia
Animalia
3
Susquehanna Elktoe
Alasmidonta
marginata
0
Freshwater Bivalves
Unionidae
Unionoida
Bivalvia
Animalia
4
Brook Floater
Alasmidonta
varicosa
35
Freshwater Bivalves
Unionidae
Unionoida
Bivalvia
Animalia
