PROTEROGLYPHA OR FRONT-FANGED SNAKES. 163 
Genus DENDRASPIS.—Maxillary bone curved upwards, with a strong 
posterior process directed backwards and outwards; a pair 
of large poison fangs, not fissured, not followed by other teeth ; 
a large fang-like mandibular tooth, followed by a considerable 
toothless space. Head narrow, elongate; eye moderate, with 
round pupil; nostril between two shields; no loreal. Body 
slightly compressed ; scales smooth, narrow, very oblique, without 
pits, in 13 to 23 rows; ventrals rounded. Tail long; sub-caudals 
in two rows, 
Fic. 69.—Skulls of typical snakes of the Front-fanged Elapine sub-family. 
I. Side view showing the fangs and rows of harmless teeth. 
A. Anterior maxillary bone to which the fangs are attached. 
2. Back of skull and lower jaws. 
3. Roof of mouth. 
B. Poison fangs. 
C. Lower jaw. (Brit. Mus. Cat. Snakes.) 
Genus NAIA. (TyPIcAL CoBRAS.) 
Four Species in South Africa. 
iE YO GEE SPECIES: 
Sub-oculars separate. the eye from the upper labials. 
21 or 23 scales across neck, Ig or 21 across middle 
of body Ss ae als ae 
Sub-oculars separate the eye from the upper labials. 
17 scales across neck, as well as across body .. WNaia anchieta. 
Naia hae. 
