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Maryland Checklist - Category: Saltwater Bivalves - all-time (Total: 31)
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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
\n
G4G5
\n
G5
\n
Garrett only
\n
GH (No known extant occurrences)
\n
GU (Global status uncertain)
\n
Hybrid
\n
In need of conservation
\n
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)
\n
S1S2 (Highly state rare)
\n
S1S2B (State rare breeder)
\n
S2 (State rare)
\n
S2B (State rare breeder)
\n
S2B (State rare breeder)
\n
S2S3 (State rare)
\n
S2S3B (State rare breeder)
\n
S3 (Watch list)
\n
S3B (State watchlist breeder)
\n
S3S4
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S3S4B (State watchlist breeder)
\n
S4SE
\n
SH (Historical)
\n
SHB (State historical breeder)
\n
SR (State rare)
\n
Status Uncertain
\n
SUB (Status uncertain breeder)
\n
SXB (State extirpated breeder)
\n
SXM (State extirpated migrant)
\n
Threatened (Federal)
\n
Threatened (MD)
\n
Undescribed
\n
Vulnerable
\n
Waif
\n
Western MD only
\n
Worcester only
\n
Photos
Common Name
Genus
Species
Records  
Category
Family
Order
Class
Kingdom
1
Channeled Duck Clam
Raeta
plicatella
2
Saltwater Bivalves
Anatinellidae
Venerida
Bivalvia
Animalia
2
Amethyst Gem Clam
Gemma
gemma
4
Saltwater Bivalves
Veneridae
Veneroida
Bivalvia
Animalia
3
Eastern Oyster
Crassostrea
virginica
68
Saltwater Bivalves
Ostreidae
Ostreoida
Bivalvia
Animalia
4
Northern Quahog
Mercenaria
mercenaria
27
Saltwater Bivalves
Veneridae
Veneroida
Bivalvia
Animalia
5
Eastern Aligena
Aligena
elevata
1
Saltwater Bivalves
Lasaeidae
Veneroida
Bivalvia
Animalia
6
Glassy Lyonsia
Lyonsia
hyalina
0
Saltwater Bivalves
Lyonsiidae
Pholadomyoida
Bivalvia
Animalia
7
Mitchell Macoma
Macoma
mitchelli
7
Saltwater Bivalves
Tellinidea
Veneroida
Bivalvia
Animalia
8
Angelwing
Cyrtopleura
costata
17
Saltwater Bivalves
Pholadidae
Myoida
Bivalvia
Animalia
9
Atlantic Awning Clam
Solemya
velum
1
Saltwater Bivalves
Solemyidae
Pholadomyoida
Bivalvia
Animalia
10
Dwarf Surfclam
Mulinia
lateralis
9
Saltwater Bivalves
Mactridae
Veneroida
Bivalvia
Animalia
11
False Quahog
Pitar
morrhuanus
1
Saltwater Bivalves
Veneridae
Venerida
Bivalvia
Animalia
12
Purplish Tagelus
Tagelus
divisus
1
Saltwater Bivalves
Tellinidae
Veneroida
Bivalvia
Animalia
13
Thin Cyclinella
Cyclinella
tenuis
1
Saltwater Bivalves
Veneridae
Venerida
Bivalvia
Animalia
14
Atlantic Macoma
Macoma
petalum
34
Saltwater Bivalves
Tellinidea
Veneroida
Bivalvia
Animalia
15
Blood Ark
Lunarca
ovalis
44
Saltwater Bivalves
Arcidae
Arcida
Bivalvia
Animalia
16
False Angelwing
Petricolaria
pholadiformis
5
Saltwater Bivalves
Petricolidae
Veneroida
Bivalvia
Animalia
17
Hooked Mussel
Ischadium
recurvum
58
Saltwater Bivalves
Mytilidae
Mytiloida
Bivalvia
Animalia
18
Florida Marshclam
Cyrenoida
floridana
1
Saltwater Bivalves
Cyrenoididae
Venerida
Bivalvia
Animalia
19
Morton's Egg-cockle
Laevicardium
mortoni
0
Saltwater Bivalves
Cardiidae
Veneroida
Bivalvia
Animalia
20
Cross-barred Venus
Chione
elevata
2
Saltwater Bivalves
Veneridae
Venerida
Bivalvia
Animalia
21
Atlantic Paper Mussel
Amygdalum
papyrium
2
Saltwater Bivalves
Mytilidae
Mytiloida
Bivalvia
Animalia
22
Elongate Macona
Macoma
tenta
3
Saltwater Bivalves
Tellinidae
Veneroida
Bivalvia
Animalia
23
Atlantic Ribbed Mussel
Geukensia
demissa
104
Saltwater Bivalves
Mytilidae
Mytiloida
Bivalvia
Animalia
24
Green Jackknife Clam
Solen
viridis
1
Saltwater Bivalves
Solenidae
Adapedonta
Bivalvia
Animalia
25
Atlantic Mud-piddock
Barnea
truncata
2
Saltwater Bivalves
Pholadidae
Myoida
Bivalvia
Animalia
26
Ponderous Ark
Noetia
ponderosa
17
Saltwater Bivalves
Noetiidae
Arcida
Bivalvia
Animalia
27
Soft-shell Clam
Mya
arenaria
22
Saltwater Bivalves
Myidae
Myoida
Bivalvia
Animalia
28
Atlantic Surfclam
Spisula
solidissima
15
Saltwater Bivalves
Mactridae
Venerida
Bivalvia
Animalia
29
Atlantic Jack-knife Clam
Ensis
directus
8
Saltwater Bivalves
Pharidae
Veneroida
Bivalvia
Animalia
30
Transverse Ark
Anadara
transversa
4
Saltwater Bivalves
Arcidae
Arcida
Bivalvia
Animalia
31
Stout Tagelus
Tagelus
plebeius
77
Saltwater Bivalves
Tellinidae
Veneroida
Bivalvia
Animalia
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