Gray dorsally with diffuse pigmentation and no sharply defined spots or blotches. The gray background has a slight olive tint on the head and trunk. Coloration is darkest along the abdominal cavity in dorsal and lateral views. Red gills visible through the skin laterally and ventrally. Few iridocytes appear in light blue or gold, scattered between the eye and spiracle, along the spiracular tube, on the lower cheek, and on the snout near the oral disc. Trunk pigmentation extends seamlessly onto the muscular tail. Tail fins mostly clear, except for the base of the upper fin and distal base of the lower fin. Ventral skin mostly transparent and slightly iridescent, with dark gut coil, red heart, and gills clearly visible. Small silvery iridophore area may be present posterior to heart near anterior gut.