Animalia → Gastropoda → Zonitidae

Broadwhorl Tightcoil

Pristiloma johnsoni

Photo of Pristiloma johnsoni

Justin Altemus · CC-BY-NC

ORBIC List 3S3

State Rank

SX
S1
S2
S3
S4
S5

S3 — Vulnerable in Oregon

What do these ranks mean? ORBIC's ranking definitions or NatureServe's conservation status categories

Ecoregions

Coast Range
West Cascades
Willamette Valley

Counties

Clackamas · Clatsop · Curry · Douglas · Hood River · Lane · Multnomah

Other states / provinces

WA, BC

Range map

Certain
Possible
Extirpated
Absent