Spinster wrasse
- kingdom: Animalia
- phylum: Chordata
- class: Actinopterygii
- order: Perciformes
- family: Labridae
- genus: Halichoeres
- species: Halichoeres nicholsi
Sámara
Guanacaste
Costa Rica
Puerto Ayora
Galápagos
Ecuador
Mazatlán
Sinaloa- La Libertad
Sonora
Mexico