Cosmocampus arctus (Jenkins & Evermann, 1889) .

Snubnose Pipefish. To 13 cm (5.1 in) TL (Allen and Robertson 1994). Humboldt Bay, northern California (Fritzsche and Cavanagh 1995) to Chile (Robertson and Allen 2015), and throughout Gulf of California (Miller and Lea 1972). Depth: intertidal to 20 m (66 ft) or more (min.: Fritzsche 1980; max.: Allen and Robertson 1994).