Loading species data...
Fetching observations
Plain Pocketbook
Lampsilis cardium
325 observations
Fatmucket
Lampsilis siliquoidea
221 observations
Fragile Papershell
Potamilus fragilis
130 observations
Giant Floater
Pyganodon grandis
91 observations
Three-horn Wartyback
Obliquaria reflexa
64 observations
Pimpleback
Pustulosa pustulosa
55 observations
Three-ridge Mussel
Amblema plicata
53 observations
White Heelsplitter
Lasmigona complanata
52 observations
Pink Papershell
Potamilus ohiensis
48 observations
Chinese Mystery Snail
Margarya chinensis
45 observations
Wabash Pigtoe
Fusconaia flava
44 observations
Black Sandshell
Ligumia recta
43 observations
Elktoe
Alasmidonta marginata
42 observations
Ellipse
Venustaconcha ellipsiformis
39 observations
Striped Whitelip
Webbhelix multilineata
37 observations
Zebra Mussel
Dreissena polymorpha
32 observations
Flamed Tigersnail
Anguispira alternata
32 observations
Mapleleaf
Quadrula quadrula
30 observations
Lilliput
Toxolasma parvum
28 observations
Pink Heelsplitter
Potamilus alatus
22 observations
Milky Slug
Deroceras reticulatum
21 observations
Yellow Sandshell
Lampsilis teres
21 observations
Asian Clam
Corbicula fluminea
15 observations
Flutedshell
Lasmigona costata
13 observations
Striated Fingernailclam
Sphaerium striatinum
12 observations
Paper Pondshell
Utterbackia imbecillis
11 observations
Fawnsfoot
Truncilla donaciformis
10 observations
Higgins' Eye Pearly Mussel
Lampsilis higginsii
9 observations
Hickorynut
Obovaria olivaria
9 observations
Leopard Slug
Limax maximus
8 observations
Creeper
Strophitus undulatus
8 observations
Washboard
Megalonaias nervosa
8 observations
Carolina Mantleslug
Philomycus carolinianus
8 observations
Monkeyface Mussel
Theliderma metanevra
8 observations
Mucket
Ortmanniana ligamentina
8 observations
Pistolgrip
Quadrula verrucosa
8 observations
Acute Bladder Snail
Physella acuta
7 observations
Butterfly Mussel
Ellipsaria lineolata
6 observations
Rock-pocketbook
Arcidens confragosus
6 observations
Marsh Ramshorn
Planorbella trivolvis
6 observations
Meadow Slug
Deroceras laeve
6 observations
Round Pigtoe
Pleurobema sintoxia
5 observations
Deertoe Mussel
Truncilla truncata
5 observations
Spike
Eurynia dilatata
5 observations
White-lip Globe Snail
Mesodon thyroidus
4 observations
Pointed Campeloma
Campeloma decisum
4 observations
Grooved Fingernailclam
Sphaerium simile
4 observations
flat floater
Utterbackiana suborbiculata
4 observations
Flat-whorled Pond Snail
Ladislavella exilis
4 observations
Western Dusky Slug
Arion subfuscus
3 observations
Frequently Asked Questions
- The 10 most common molluscs in Iowa are:
- Plain Pocketbook (Lampsilis cardium)
- Fatmucket (Lampsilis siliquoidea)
- Fragile Papershell (Potamilus fragilis)
- Giant Floater (Pyganodon grandis)
- Three-horn Wartyback (Obliquaria reflexa)
- Pimpleback (Pustulosa pustulosa)
- Three-ridge Mussel (Amblema plicata)
- White Heelsplitter (Lasmigona complanata)
- Pink Papershell (Potamilus ohiensis)
- Chinese Mystery Snail (Margarya chinensis)
- The most observed mollusc in Iowa is Plain Pocketbook (Lampsilis cardium), with 325 recorded observations.