CreatureData

Oblong orb mussel

Sphaerium transversum (Say, 1829)

Status not recordedmolluscs

The oblong orb mussel (Sphaerium transversum) is a species in the family Sphaeriidae, order Venerida.

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Quick facts about the oblong orb mussel

Weight
Not recorded
Length
Not recorded
Lifespan
Not recorded
Main food
Not recorded
Habitat
Not recorded
Young per litter or clutch
Not recorded
Conservation status
Not recorded
Countries on record
Not recorded

Where does the oblong orb mussel live?

Not recorded

Is the oblong orb mussel endangered?

No conservation assessment is recorded for this species in our sources. That is not the same as being safe: it has not been matched to an assessment.

How is the oblong orb mussel classified?

  1. kingdomAnimalia
  2. phylumMollusca
  3. classBivalvia
  4. orderVenerida
  5. familySphaeriidae
  6. genusSphaerium
  7. SpeciesSphaerium transversum (Say, 1829)

Synonyms Calyculina contracta, Calyculina transversa, Cyclas constricta, Cyclas detruncata, Cyclas gracilis, Cyclas transversa, Musculium transversum, Musculium transversum f. decisum, Paramusculium transversum, Sphaerium contractum, Sphaerium pallidum, Sphaerium transversum

Other names and names in other languages (7)
  • Long fingernail clamEnglish
  • Oblong orb-musselEnglish
  • Almeja de uña oblongaSpanish
  • Cyclade d'AmériqueFrench
  • Pailgoji kiaukutukėLithuanian
  • Late hoornschaalDutch
  • Amerikaanse hoornschaalDutch

Catalogue of Life

Relatives of the oblong orb mussel

Other species in the same genus Sphaerium.

CompareOblong orb mussel vs Horny orb musselOblong orb mussel vs Nut orb shellOblong orb mussel vs Arctic orb musselOblong orb mussel vs Rhomboid fingernailclam

Common questions

Answered only where our data holds the answer.

What kind of animal is the oblong orb mussel?

The oblong orb mussel (Sphaerium transversum) belongs to the family Sphaeriidae in the order Venerida.

Sources and how to cite this page

Data as of 2026-11-11. How this page is put together.

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APA

CreatureData. (2026). Oblong orb mussel (Sphaerium transversum). Retrieved from https://creaturedata.com/animals/oblong-orb-mussel

MLA

“Oblong orb mussel (Sphaerium transversum).” CreatureData, 2026, https://creaturedata.com/animals/oblong-orb-mussel.

BibTeX
@misc{oblong_orb_mussel_2026,
  title = {Oblong orb mussel (Sphaerium transversum)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/oblong-orb-mussel},
  note = {Data as of 2026-11-11}
}