Grammonus diagrammus (Heller & Snodgrass, 1903) .

Purple Brotula . To 20.3 cm (8 in) TL (Miller and Lea 1972). San Clemente Island (Miller and Lea 1972) and Santa Catalina Island (Richards and Engle 2001) to Ecuador (Béarez 1996), including Gulf of California, Islas Galápagos (Miller and Lea 1972), and Islas Revillagigedo (Robertson and Allen 2002). Depth: 3–81 m (10–266 ft) (min.: Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California; max. Castellanos-Galindo et al. 2006a).