558 DR. J. E. GRAY ON THE VIVERRID&. [Nov. 8, 
Hab. S. Africa, Cape of Good Hope, on the banks of the rivers ; 
a great diver (4. Smith); E. Africa, Quillimane (Peters). 
Var. Black-brown, only very slightly punctulated, except on the 
side of the throat. 
Var. Canine teeth very strong, 
Hab. Guinea (Gervais). 
The skull is wider, compared with its length, than in most species 
of the genus; the brain-case is more convex ; the contraction in the 
front of the brain-case is not so great or so sudden as in Herpestes 
ichneumon and H. caffer, and is only a very small distance behind the 
hinder edge of the orbit. The orbit is very incomplete behind. The 
teeth are normal ; they are all much more bulky and broader than in 
any of the other species of the genus which I have seen; the hinder 
upper false grinder is triangular, with nearly equal sides ; the flesh- 
tooth is very strong, the front edge being nearly four-fifths of the 
length on the outer side; the first tubercular is not twice as broad 
as the length of the outer edge. The brain-case is about five-eighths 
of the entire length. The hinder part of the palate contracted, flat, 
with a diverging crest on each side above, and a ridge on each side 
below, with the aperture transverse, in a line with the base of the 
lateral crest. The bullee large, vesicular, rounded below and behind. 
Length of the skull 31} inches; width of brain-case 144 inch, at 
zygomatic arch 24 inches. 
The zygomatic arch, in comparative length and convexity, is very 
like that of the skull of H. ichneumon. 
Lower jaw strong, short, with a distinct chin-angle in front ; teeth 
very large and strong; tubercular oblong, longitudinal, large, with 
two anterior and one broad hinder lobe, the angle behind with flat- 
tened expanded processes. 
3. ATHYLAX ROBUSTUS. B.M. 
Brown, very minutely and closely punctured; the head blacker, 
with a subvertical band ; the edge of the lower jaw and cheeks under 
the ears yellowish, not punctulated ; legs and feet nearly black ; tail 
black brown, punctulated. 
Hab. Africa: ‘‘ White Nile” (no. 6168, adult; no. 6169, younger) 
(Parzudakt). 
Very like A. paludosus, but paler, and with the pale cheeks; the 
teeth are very large and strong, like those of the 4. paludosus va- 
riety from Guinea. 
Lower jaw like that of 4. paludosus, but not quite so strong, and 
more sloping in front ; the compressed teeth rather large ; the tuber- 
cular oblong, elongate, moderate, with two large lobes in front, and 
one larger behind. 
Skull elongate; nose short, thick; forehead convex; orbits com- 
plete. Teeth 36; the false grinders 2/3, with a short space be- 
tween the canine and the first false molar, where a small tooth.may 
have fallen out. The false grinders triangular, with a triangular tu- 
bercle on the middle of the inner side. The flesh-tooth massive, 
