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Leopard Slug
Limax maximus
369 observations
Asian Clam
Corbicula fluminea
367 observations
Yellow Sandshell
Lampsilis teres
296 observations
Giant Floater
Pyganodon grandis
280 observations
Fragile Papershell
Potamilus fragilis
161 observations
Pink Heelsplitter
Potamilus alatus
152 observations
Mapleleaf
Quadrula quadrula
139 observations
Three-ridge Mussel
Amblema plicata
133 observations
Pondmussel
Sagittunio subrostratus
126 observations
Plain Pocketbook
Lampsilis cardium
111 observations
Zebra Mussel
Dreissena polymorpha
82 observations
Pimpleback
Pustulosa pustulosa
82 observations
Paper Pondshell
Utterbackia imbecillis
81 observations
White Heelsplitter
Lasmigona complanata
78 observations
Fatmucket
Lampsilis siliquoidea
76 observations
Pistolgrip
Quadrula verrucosa
74 observations
Flamed Tigersnail
Anguispira alternata
69 observations
Carolina Mantleslug
Philomycus carolinianus
66 observations
Deertoe Mussel
Truncilla truncata
62 observations
Pondhorn
Uniomerus tetralasmus
57 observations
Ellipse
Venustaconcha ellipsiformis
56 observations
Pink Papershell
Potamilus ohiensis
52 observations
Lilliput
Toxolasma parvum
52 observations
White-lip Globe Snail
Mesodon thyroidus
50 observations
Three-horn Wartyback
Obliquaria reflexa
48 observations
Wabash Pigtoe
Fusconaia flava
47 observations
Mucket
Ortmanniana ligamentina
47 observations
Purple Wartyback
Cyclonaias tuberculata
43 observations
Ozark mantleslug
Megapallifera ragsdalei
43 observations
Bladetooth Wedge
Xolotrema fosteri
38 observations
Whitewashed Rabdotus
Rabdotus dealbatus
37 observations
Spike
Eurynia dilatata
34 observations
Round Pigtoe
Pleurobema sintoxia
31 observations
Pyramid Elimia
Elimia potosiensis
31 observations
flat floater
Utterbackiana suborbiculata
31 observations
Monkeyface Mussel
Theliderma metanevra
31 observations
Butterfly Mussel
Ellipsaria lineolata
30 observations
Western Fanshell
Cyprogenia aberti
29 observations
Black Sandshell
Ligumia recta
29 observations
Ouachita Kidneyshell
Ptychobranchus occidentalis
28 observations
Milky Slug
Deroceras reticulatum
28 observations
Spectaclecase
Cumberlandia monodonta
25 observations
Shagreen
Inflectarius inflectus
21 observations
Arkansas brokenray
Lampsilis reeveiana
21 observations
Northern brokenray
Lampsilis brittsi
21 observations
Washboard
Megalonaias nervosa
20 observations
Creeper
Strophitus undulatus
19 observations
Ozark Pigtoe
Fusconaia ozarkensis
18 observations
Flutedshell
Lasmigona costata
18 observations
Fawnsfoot
Truncilla donaciformis
18 observations
Frequently Asked Questions
- The 10 most common molluscs in Missouri are:
- Leopard Slug (Limax maximus)
- Asian Clam (Corbicula fluminea)
- Yellow Sandshell (Lampsilis teres)
- Giant Floater (Pyganodon grandis)
- Fragile Papershell (Potamilus fragilis)
- Pink Heelsplitter (Potamilus alatus)
- Mapleleaf (Quadrula quadrula)
- Three-ridge Mussel (Amblema plicata)
- Pondmussel (Sagittunio subrostratus)
- Plain Pocketbook (Lampsilis cardium)
- The most observed mollusc in Missouri is Leopard Slug (Limax maximus), with 369 recorded observations.