Species · accepted · checked 2026-08-05

Ptychoramphus aleuticus

Cassin's Auklet

WoRMS 344115ITIS 177013key itis:177013

2,296
observations: 2,296
sampling events: 1987–2022
years: 1
datasets

Observed in

Seabirds & Marine Mammals 2,296 obs · 2,296 events · 1987–2022
name used: Ptychoramphus aleuticus Cassin's Auklet · code CAAU

One row per dataset, 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.

Groups

calcofi:seabirds

Note from the crosswalk

2026-08-05: worms_id 344115 via WoRMS TSN crosswalk (status accepted)

Ways in

Explorermaps, sections and time series of this taxon — opens prefilled
https://calcofi.io/explore/?taxon=itis:177013
db-querySQL in your browser — the shell opens with this query
https://calcofi.io/db-query/?sql=SELECT+%2A+FROM+__TBL%3Aobs_bio__+WHERE+taxon_key+%3D+%27itis%3A177013%27+LIMIT+100%3B
ERDDAPCalCOFI's own server, the Seabirds & Marine Mammals table constrained to this taxon
https://erddap.calcofi.io/erddap/tabledap/farallon_bird-mammal.html?&taxon_key=%22itis:177013%22

library(calcofi4r)
con <- cc_get_db()                      # the promoted release
tbl(con, "obs_bio") |> filter(taxon_key == "itis:177013")

Python

import calcofi4py as cc
con = cc.cc_get_db()
con.sql("SELECT * FROM obs_bio WHERE taxon_key = 'itis:177013'").df()

This page as data

JSONthis taxon's entry of the release record, verbatim
https://calcofi.io/species/itis-177013.json

Read from taxa.json of release v2026.09.06, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.