Kauaʻi record · KCA-MOL-00108
Black Purse Shell
Isognomon californicus
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About Black Purse Shell
Bishop Museum TR29 records the taxon at Kauai stations; 2017 Koloa and 2018 Kalihiwai records corroborate, with the Koloa record annotated alive.
MolluscaBase/WoRMS AphiaID 1476923 accepts Isognomon californicus.
Primary source is a coastal survey and modern records are from shallow Kauai shore sites.
Authoritative island occurrence and an alive modern coastal observation verify continued presence. Reclassified to VERIFIED_HISTORICAL under the uniform recency rule.
Names and classification
- Scientific name
- Isognomon californicus
- Common names
- Black Purse Shell
- Other names
- Isognomon californicus · Isognomon californicum
- Record type
- species
Kauaʻi occurrence and status
- Kauaʻi occurrence
- Current marine occurrence supported by an alive modern record. Uniform QA: the dated authoritative evidence is historical; later community observations are corroborative only and do not establish authoritative current status.
- Origin
- Origin not inferred from occurrence census
- Conservation status
- Not assessed
- Evidence limits
- Occurrence category and evidence are source-bounded. Abundance, trend, and living status are not inferred beyond the reviewed evidence.
Habitat and ecology
- Habitats
- Marine reef and nearshore
Process and seasonal context
- Seasonal description
- Isognomon californicus is included in the verified Kauaʻi mollusk census. Authoritative island occurrence and an alive modern coastal observation verify continued presence. Reclassified to VERIFIED_HISTORICAL under the uniform recency rule.