Grampus griseus
Risso's Dolphin
i
2026-08-05: itis_id 180457 via WoRMS external link
Risso's dolphin is the only species of the genus Grampus in the family Delphinidae (dolphins). Some of the most closely related species to these dolphins include: pilot whales, pygmy killer whales, melon-headed whales, and false killer whales.W CalCOFI holds 156 observations of it in 1 dataset between 1987 and 2020.R
- 156
- observations
- 156
- records
- 156
- sampling events
- 1987–2020
- years
- 1
- datasets
- 3.8 m
- max length
Observed in 1 dataseti
One row per dataset, and beside it one cell per year, darker with more observations — the same
strip the front door draws per dataset. Each row ends with the name that dataset uses
(dataset_taxon); the accepted name is written once, in the title above. A quiet
pill marks a name the authority does not accept.
i
One row per dataset, and beside it one cell per year, darker with more observations — the same strip the front door draws per dataset. Each row ends with the name that dataset uses (dataset_taxon); the accepted name is written once, in the title above. A quiet pill marks a name the authority does not accept.
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name used: Grampus griseus Risso's Dolphin · code
RIDO
Ways inExplorerdb-queryERDDAPRPythonThis page as JSON
Code and endpoints ERDDAP · R · Python · JSON
library(calcofi4r) con <- cc_get_db() # the promoted release tbl(con, "obs_bio") |> filter(taxon_key == "worms:137098")
import calcofi4py as cc
con = cc.cc_get_db()
con.sql("SELECT * FROM obs_bio WHERE taxon_key = 'worms:137098'").df()Read from taxa.json of release v2026.10.20, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.
How big is it 3.8 m max
Every mark is a measured length with its own source — hover one to read it. The reference objects are _data/size_reference.csv: two of them, the 505 µm bongo mesh and the net's ring, are CalCOFI's own sampling gear.
Lineage 14 ranks · Biota to Grampus
Credits silhouette · photo · text · length
- Silhouette · T. Michael Keesey · CC BY-SA 3.0 · PhyloPic, drawn from Grampus griseus · source
- Photo · National Marine Mammal Laboratory, no individual author credit given · Public domain · commons · source
- Text · Wikipedia, “Risso's dolphin” · CC BY-SA 4.0 · revision 1371085665
- Length · sealifebase
Elsewhere Wikidata · iNaturalist · GBIF
The same organism on the services the faces were fetched from; the authorities' own pages are the ids in the head.
Cite the release, v2026.10.20
Cite the release, v2026.10.20; each dataset's own citation, licence and DOI are on its page. How to cite ↗