They have a light superciliary line above the eye and a chestnut crown.

It is slightly depressed, and joins the two superciliary ridges.

They show a broad whitish superciliary band above the eye running down to the neck.

Easily recognized by a set of 3-5 horn-like superciliary scales above each eye.

It has a head pattern like a Whimbrel, with crown and superciliary stripes.

The superciliary scales above the eyes are not enlarged (as opposed to A. ceratophora).

The male has a crimson crown, a brown forehead, a black superciliary stripe, and another from the base of the bill to the neck.

It also had a yellow or white superciliary line and a white chin and throat.

The frontal sinuses are situated behind the superciliary arches.

The black on the face and throat extends to the shoulders, and there is distinct white superciliary stripe.

In general, Transandinomys are distinguished from those animals by their very long superciliary vibrissae (whiskers above the eyes).

Small and arboreal, these snakes are characterized by their wide array of color variations, as well as the superciliary scales over the eyes.

The two species are morphologically similar, but they could identify only one synapomorphy (shared-derived trait) for them: very long superciliary vibrissae (whiskers above the eyes).

Typically, the superciliary arches are more prominent in monkeys than in humans, and more in men than in women.

- No superciliary stripe; forehead black, sometimes with a few blue feathers; the light azure-blue streaks on breast and even the belly are sometimes scarlet-tipped.

It had greenish olive upperparts and pale whitish yellow underparts, as well as a yellow or white superciliary line.

Upper head-scales unequal, strongly keeled; a compressed prominent scale on the posterior part of the superciliary region; 7 to 11 upper labials.

M.g. gularis - From Sierra Leone to southeast Nigeria - With the forehead blue, and a distinct bright cobalt-blue superciliary stripe.

The thick, long mystacial vibrissae (whiskers above the mouth) are mostly dark brown and the few superciliary vibrissae (above the eyes) are also thick and brown.

The mystacial (above the mouth) and superciliary vibrissae both extend to at least the back margin of the ears when laid back against the head, but are much longer in T. bolivaris.

Due to the subdued colors of the sole specimen, it is believed that it was a female, suggesting that the male would have had a brighter plumage, especially in the superciliary line.

Both are mainly green, with red or maroon markings on the forehead, forecrown, broad superciliary stripe, and feathers on the bend of the wing, the carpal edge and the thighs.

It is often confused with the Red-fronted Barbet but it is significantly smaller than that species, has a black moustache and a less robust bill, and lacks a broad yellow superciliary stripe.

Beneath each superciliary arch is a curved and prominent margin, the supraorbital margin, which forms the upper boundary of the base of the orbit, and separates the squama from the orbital portion of the bone.

Below the frontal eminences, and separated from them by a shallow groove, are two arched elevations, the superciliary arches; these are prominent medially, and are joined to one another by a smooth elevation named the glabella.