On the Angwantibo of Old Calabar. Ill 
tions of the body and limbs, whicli I shall afterwards notice 
in describing this specimen ; and while at present unable 
to procure various works for reference, or a specimen of the 
Potto itself for examination, and therefore in want of more 
information on the subject. I am inclined to consider this 
specimen of the Angwantibo as being a mature individual, 
and probably forming another species of the same genus, and 
one that, so far as I am aware, has not before been described, 
I therefore, from the locality where it was found, give it pro- 
visionally the name of the Stenops, or Ferodicticus Cala- 
bar ensis. 
The PottOyOrPerodicticus (x^o/roT/i, is found at Sierra Leone, 
a region of the African coast, at some distance from Old Calabar. 
It is also known by a different name, being the Aposo or Aposou 
of the Gold Coast. The letters of the missionaries (from which 
extracts were given at the commencement of this communica- 
tion) seem to indicate the possible existence of more than one 
species, probably of allied animals — the Dwdn of the Krumen, 
and this, the smaller Angwantibo of the natives of Old Cala- 
bar. Whether the Diudn and the Aposou are the same, or 
diiferent species, I am unable to determine : they probably 
bear a considerable resemblance to one another. From the 
great variety in size, however, of the animals referred to in 
these letters, I am at present inclined to believe there 
may probably be two, if not three, distinct species, — the 
Aposou, the Dwdn, and the Angwantibo, — the Dwdn being 
perhaps the largest in size. 
Description of the Angavantibo (from specimen in spirits:)— 
PerodicticusCalabarensis (Mihi) — above, yellowish-brown ; 
the roots of hair dark gray ; below, paler, in some parts 
nearly white ; hair ivool-like ; length from muzzle to point 
of tail, lOJ inches ; tail very short, (about ^th of an inch in 
length). 
Proximal phalanges of both hands and feet (not including 
the pollex) united together by the integuments ; the two distal 
phalanges being free.* 
* A hand of the Potto, figured in "Cuvier's Animal Kingdom" — London, 
