Loading species data...
Fetching observations
Plain Pocketbook
Lampsilis cardium
332 observations
Fatmucket
Lampsilis siliquoidea
223 observations
Fragile Papershell
Potamilus fragilis
131 observations
Giant Floater
Pyganodon grandis
91 observations
Three-horn Wartyback
Obliquaria reflexa
74 observations
Three-ridge Mussel
Amblema plicata
65 observations
Pimpleback
Pustulosa pustulosa
56 observations
White Heelsplitter
Lasmigona complanata
55 observations
Pink Papershell
Potamilus ohiensis
50 observations
Chinese Mystery Snail
Margarya chinensis
48 observations
Wabash Pigtoe
Fusconaia flava
47 observations
Striped Whitelip
Webbhelix multilineata
47 observations
Black Sandshell
Ligumia recta
46 observations
Elktoe
Alasmidonta marginata
42 observations
Flamed Tigersnail
Anguispira alternata
40 observations
Ellipse
Venustaconcha ellipsiformis
39 observations
Zebra Mussel
Dreissena polymorpha
33 observations
Mapleleaf
Quadrula quadrula
32 observations
Lilliput
Toxolasma parvum
28 observations
Pink Heelsplitter
Potamilus alatus
26 observations
Yellow Sandshell
Lampsilis teres
26 observations
Milky Slug
Deroceras reticulatum
21 observations
Asian Clam
Corbicula fluminea
15 observations
Flutedshell
Lasmigona costata
13 observations
Butterfly Mussel
Ellipsaria lineolata
12 observations
Higgins' Eye Pearly Mussel
Lampsilis higginsii
12 observations
Paper Pondshell
Utterbackia imbecillis
12 observations
Striated Fingernailclam
Sphaerium striatinum
12 observations
Fawnsfoot
Truncilla donaciformis
11 observations
Carolina Mantleslug
Philomycus carolinianus
11 observations
Hickorynut
Obovaria olivaria
10 observations
Washboard
Megalonaias nervosa
10 observations
Pistolgrip
Quadrula verrucosa
10 observations
Monkeyface Mussel
Theliderma metanevra
9 observations
Leopard Slug
Limax maximus
8 observations
Creeper
Strophitus undulatus
8 observations
Mucket
Ortmanniana ligamentina
8 observations
Rock-pocketbook
Arcidens confragosus
7 observations
Marsh Ramshorn
Planorbella trivolvis
7 observations
Acute Bladder Snail
Physella acuta
7 observations
Meadow Slug
Deroceras laeve
6 observations
Spike
Eurynia dilatata
6 observations
Round Pigtoe
Pleurobema sintoxia
5 observations
Deertoe Mussel
Truncilla truncata
5 observations
flat floater
Utterbackiana suborbiculata
5 observations
White-lip Globe Snail
Mesodon thyroidus
4 observations
Pointed Campeloma
Campeloma decisum
4 observations
Grooved Fingernailclam
Sphaerium simile
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)
- Three-ridge Mussel (Amblema plicata)
- Pimpleback (Pustulosa pustulosa)
- 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 332 recorded observations.