Dorsal body and tail ocher-yellow to mid-brown, darker during the day and lighter at night; the trunk often darker than the head. Dark markings typically include blotches or bands on the lateral face of the head and trunk: below the nostril, below the eye, and dorsoventrally across the gill region and flanks. Nostril may be embedded in a small dark spot. Opposing dark V- or W-shaped markings sometimes occur between the eyes. Dorsal skin gland clusters may be embedded in darker pigmentation. These dark markings can be absent in some populations. Iridocytes lightly dust the cheek and flank. Pigmentation lightens along the tail and toward the fins; the tail lacks distinct dark markings. Ventral skin mostly transparent; anterior abdomen and heart and gill regions may bear clusters of silvery iridocytes. Ventral head skin translucent or semitransparent with fine melanocyte stippling; gills and heart visible, heart with a small iridocyte patch. The oral disc is finely stippled with melanocytes and oral papillae bear clusters of melanocytes.