Head slender, snout pointed; a close-set pair of heavily branched nape cirri, a branched cirrus over eye; upper part of rear end of top jaw covered by bone under eye; no small teeth behind outer row of large teeth on upper jaw; no teeth on sides of roof of mouth; dorsal fin XX, 10, (XX-XXI, 9-11), notch between spines and rays; anal II, 19 (18-20); pectoral 14; 3 pelvic soft rays; 50-55 lateral line scales; no scales on midline in front of dorsal fin or on prepectoral area, sometimes a few scales on breast.
Pale olive; ~ 5 faint dark bars on body; usually a dark greenish to brownish stripe from eye to tail fin base, with dark spots where that stripe is crossed by the dark bars; ~ 6 greenish-brown lines along lower side; belly and pectoral fins often yellowish; occasionally with dark spot at pelvic-fin base.
Size: attains a length of 6.5 cm.
Habitat: rocky bottoms.
Depth: 1-10 m?
The tip of Baja California, the SW Gulf of California, and central Mexico.