Evidence found
841 records across 3 countries and territories, 1998–2019.
Biomphalaria sudanica · GBIF taxon key 5784542
Where has the Biomphalaria sudanica been recorded?
Biomphalaria sudanica occurrence evidence comes from 841 records in 3 countries and territories, from 1998 to 2019. Most records come from Tanzania.
- 841 records
- 3 places
- 14 years recorded
- Gastropoda class
Observation evidence passport
Source coverage
CC0 GBIF Animalia occurrence facets, including country, month and year summaries.
Refreshed 2026-09-22. Inspect the taxon on GBIF.
What this means
The species has been recorded in the listed places in the stated source universe. Peak month: August.
11 months reach at least 10% of the peak facet count.
What this does not mean
repeated describes the record pattern, not a formal range, residency, abundance or conservation assessment.
A single record remains evidence of a recording, not proof that a population lives there.
Compare this animal’s observation pattern
When it is recorded
JFMAMJJASOND
Peak month: August. Records cluster in the months an animal is present and being looked for, so a summer peak can reflect observer effort as much as the animal.
Records over time
19982019
Recording effort has risen steeply almost everywhere since the 1990s, so a rising line usually shows more observers rather than more animals.
Where Biomphalaria sudanica has been recorded
The countries below show where occurrence evidence exists for Biomphalaria sudanica. They do not define a complete habitat range: survey effort differs by place, and historical or one-off records can appear alongside repeated presence.
Related animals
Others in the family Planorbidae.
Record pattern: repeated
Repeated records across many years and months. This is inferred from how many years and months the animal appears in, not from a range map — treat it as evidence, not a formal assessment.
Repeated records across many years and months. This is inferred from how many years and months the animal appears in, not from a range map — treat it as evidence, not a formal assessment.