Original Name
Snyder described Hesperoleucus parvipinnis in 1913 from Wheatfield Fork. Later works treated it within a broader California Roach grouping. The historical locality remains useful for connecting the original name with the species recognized in modern classifications.
Modern Revision
A 2019 reappraisal combined genomic evidence with earlier morphological work and recognized Gualala Roach as a species. Other portions of the old complex were assigned to Northern, Coastal and California roaches. The broad historical distribution therefore cannot be copied intact to Gualala Roach.
Measurements and Records
An upper size published for undivided California Roach does not establish this species’ maximum. Specimens and photographs should retain their drainage and identification evidence. The Gualala locality is a central distinction, especially when older database records redirect to a broader species account.
Keep the Post-Revision Scope
Gualala Roach has a narrower identity than historical California Roach. Preserve that distinction when transferring locality, habitat or size records.
All Lakes With Gualala Roach
Browse lakes and reservoirs with documented Gualala Roach records, listed alphabetically. Records do not establish current abundance or public access. Check the evidence and managing authority for the water you choose.
No published lakes are currently linked to this species in our confirmed records.