Frons distinctly higher than wide, with shallow and wide
subocular grooves, bulging in middle; antennae inserted between lower half of compound eyes (Fig.
El primer reporte de albinismo parcial en la urraca o zanate norteno Quiscalus mexicanus fue realizado por Phillips (1954), quien colecto una hembra en la costa suroeste de Nayarit, mencionando que habia presencia de plumas blancas a los lados de la cara, en la region loreal, malar y
subocular.
levator mandibulae internus) originate from the
subocular bar, ventral to the eye, and extend rostrally to insert on the jaw (Meckel's cartilage).
Another case concerned a female fish with a large
subocular fluid-filled sac below the right eye (Figure 6(a)), associated with progressive cataract formation in the ipsilateral eye.
He also highlighted potentially significant anatomical similarities including a peduncle posterior to the right eyestalk (distinct from the
subocular tentacle) and hooded rachidian teeth in the radula, but pointed out that these may be plesiomorphic character states.
4A): lateral ocelli and the medial ocellus situated on an irregular-shaped, broad black mark which stops short of the base of the antennae and vertex; median ocellus in frontal position; distance between the lateral ocelli nearly three times the distance that separates them from the corresponding eyes; eyes in short ellipsoids, wide, oblique, with
subocular joined marks; postclypeus dorsal portion short and arched; postclypeus face arched, brown, with nine transverse ridges on both sides of the medial furrow; anteclypeus black; rostrum brownish, long, with apex reaching the level of the insertion of the hind trochanters.
Los margenes de la orbita exhiben cuatro dientes separados por espacios profundos; estos dientes son el preocular, supraocular, postocular, y
subocular; el preocular es comprimido y romo, con borde anterior denticulado.
Preocular: PR--scale bordering the anterior margin of the orbit and contacting the anterior
subocular posteriorly below the orbit; sometimes with one or two smaller subpreocular scales above; often called a loreal by West Indian researchers.
For example, the ocular area becomes broadened with increasing width of the carapace; the
subocular plate and the epistome are gradually projected forward and the eyestalks degenerate.
Superciliary vibrissae are few in number but long, reaching 30 mm to behind the ears;
subocular vibrissae appear as a dense tuft of hairs, 30-40 mm long, on a fleshy pad behind the eye.