Names where authority is Twitty
- Class: Amphibia
- Order: Caudata
- Family: Salamandridae
- Subfamily: Pleurodelinae
- Genus: Taricha
- Species: Taricha granulosa (Skilton, 1849)
- Synonym: Triturus granulosus — Twitty, 1935
- Synonym: Triturus similans Twitty, 1935
- Species: Taricha rivularis (Twitty, 1935)
- Synonym: Triturus rivularis Twitty, 1935
- Species: Taricha sierrae (Twitty, 1942)
- Synonym: Triturus sierrae Twitty, 1942
- Species: Taricha torosa (Rathke, 1833)
- Synonym: Triturus torosus klauberi — Twitty, 1942
- Species: Taricha granulosa (Skilton, 1849)
- Genus: Taricha
- Subfamily: Pleurodelinae
- Family: Salamandridae
- Order: Caudata
