Pygmy siltsnail

{{Short description|Species of gastropod}}

{{Speciesbox

| name = Pygmy siltsnail

| image =

| status = VU

| status_system = IUCN2.3

| taxon = Floridobia parva

| authority = (Thompson, 1968)

| synonyms = *Cincinnatia parva Thompson, 1968

|status_ref={{cite iucn |author=Mollusc Specialist Group |date=1996 |title=Floridobia parva |volume=1996 |page=e.T4873A11101751 |doi=10.2305/IUCN.UK.1996.RLTS.T4873A11101751.en |access-date=16 November 2021}}

}}

The pygmy siltsnail, scientific name Floridobia parva, is a species of very small freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. This species is endemic to Blue Spring in Florida.{{Cite journal |last=Schultheis |first=Alicia S. |last2=Kellmann |first2=Cailin R. |date=1 March 2013 |title=Cyanobacteria-Rich Diet Reduces Growth Rates of the Hyacinth Siltsnail Floridobia floridana:(Gastropoda: Hydrobiidae) |url=https://bioone.org/journals/freshwater-mollusk-biology-and-conservation/volume-16/issue-1/fmbc.v16i1.2013.1-8/Cyanobacteria-Rich-Diet-Reduces-Growth-Rates-of-the-Hyacinth-Siltsnail/10.31931/fmbc.v16i1.2013.1-8.full |journal=Freshwater Mollusk Biology and Conservation |volume=13 |issue=1 |pages=1–8 |doi=10.31931/fmbc.v16i1.2013.1-8|doi-access=free }}