2.3-2.5 and 2.1-2.4 times
internasal width, prenasal length 9.7-10.1% DW vs.
The grooves were interpreted as marking the edges of the cartilaginous
internasal septum (Romer and Price 1940, p.
In ventral view, it can be observed that
internasal space is relatively reduced in Urotrygon species.
Presentaba una escama en forma de pua antes del centro del ojo y dos escamas supranasales, el par anterior separado por una
internasal. Escamas parietales lisas.
Dorsal view of the skull of female blackbuck showing parietal bone (a), frontal bone (b), zig-zag interfrontal suture (c), supraorbital foramen (d), orbit (e), fronto-nasal suture (f), facial tuberosity (g), maxilla bone (h),
Internasal suture (i), nasal bone (j), nasal process (k), palatine process of incisive bone (l), palatine fissure (m), incisive bone (n), inter-incisive fissure (o).
Supraoculars, mental, upper and lower labials, rostral,
internasal, prenasal, postnasal, loreal, prefrontal, frontal, parietal, preocular, subocular, postocular, foveal, cantals, and intercantals were examined under dorsal and lateral views of the organism; and mental, genial shields, and gular region under a ventral view.
Prenasal,
internasal, and dermal sphenethmoid absent.
a) Length of nasal bone: Distance from the central point of the fronto-nasal suture to the rostral end of the
internasal suture.
-- Results from a canonical analysis of the following continuous variables (code numbers in parentheses) are presented in Table 2 and Figures 6 and 7: length of head (1), snout (2), rostral (4), frontal (6),
internasal suture (9), prefrontal suture (10), snout-vent (11); height of rostral (5); diameter of eye (3); width of frontal (7), supraocular (8).