Typical Pimple-backed Mussel (Quadrula pustulosa) wildspecies.ca

Sensitive

Present in regions

Migratory species: Unknown

Taxonomic group:

Freshwater mussels

Learn more about all species of Freshwater mussels in Canada.

The General Status ranks do not have legal weight. They are meant to identify the species that may be at risk in Canada.

Access other data on this species on the NatureServe Explorer.

Common Names

English common name:

Typical Pimple-backed Mussel

In English, species in the tribe Quadrulini are named "Pimple-backed Mussel".

French common name:

Quadrule pustulée

In French, species in the tribe Quadrulini are named "Quadrule" (feminine).

Year	English common name	French common name
2005	Pimpleback	Mulette pustulée
2010	Pimpleback	Mulette pustulée
2015
2020

Scientific Names

Higher Classification:

Superkingdom

EUKARYOTA

Kingdom

ANIMALIA

Subkingdom

BILATERIA

Infrakingdom

PROTOSTOMIA

Superphylum

Spiralia

Phylum

Mollusca

Class

Bivalvia

Subclass

Autobranchia

Superorder

Heteroconchia

Year	Scientific name	Family	Order
2005	Quadrula pustulosa	Unionidae	Unionoida
2010	Quadrula pustulosa	Unionidae	Unionoida
2015	Amphinaias pustulosa	Unionidae	Unionoida
2020	Cyclonaias pustulosa	Unionidae	Unionida

Priority Score

This species is not designated as may be at risk

Trends in rounded national ranks

Year	Rounded National Rank	Description of the change	Reason for change
2005	Vulnerable
2010	Vulnerable
2015	Imperiled	Increased level of risk.	Procedural change.
2020	Imperiled

Original Ranks:

Canada
2005	Sensitive - 3
2010	Sensitive - 3
2015	Imperiled - N2
2020	Imperiled - N2

Yukon
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

Northwest Territories
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

Nunavut
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

British Columbia
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

Alberta
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

Saskatchewan
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

Manitoba
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

Ontario
2005	Sensitive - 3
2010	Sensitive - 3
2015	Imperiled - S2
2020	Imperiled - S2

Quebec
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

New Brunswick
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

Nova Scotia
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

Prince Edward Island
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

Newfoundland and Labrador
2005	Not Present
2010	Not Present
2015
2020

Labrador
2005
2010
2015	Not Present
2020	Not Present

Newfoundland
2005
2010
2015	Not Present
2020	Not Present

Pacific Ocean
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

Western Arctic Ocean
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

Eastern Arctic Ocean
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present

Atlantic Ocean
2005	Not Present
2010	Not Present
2015	Not Present
2020	Not Present