Animalia → Gastropoda → Zonitidae
Crowned Tightcoil
Pristiloma pilsbryi
Justin Altemus · CC-BY-NC
ORBIC List 1S1
State Rank
SX
S1
S2
S3
S4
S5
S1 — Critically Imperiled in Oregon
G1G2
Global Rank
Critically Imperiled
List 1
ORBIC
Endangered in Oregon
What do these ranks mean? ORBIC's ranking definitions or NatureServe's conservation status categories
Ecoregions
Coast Range
Willamette Valley
Counties
Clatsop · Multnomah · Tillamook
Other states / provinces
WA
Range map
Certain
Possible
Extirpated
Absent