On the Angwdntibo of Old Calahar. 191 
listed on the Potto, Bosnian's figure is a grotesque carica- 
ture of a fat and lazy animal, having a very faint resemblance 
to the Potto. Van der Hoeven gives a drawing of the skull 
in the " Tydschrift voor Nat. Gesch.," vol. ii. plate i. fig. 3, 
and of a young animal, in plate ii. ; also a very full account, 
with drawings of an adult, and of the skeleton, brain, and 
viscera, in a paper in Verhand. der Eerste Klasse van het 
Fig. 5. Hand. Fig. 6. Foot. 
Potto. 
Kon. Med. Inst. IV. 1851. More recently, in 1856, Dahl- 
boum, in his Studia Zoologica," gives a figure and de- 
scription of the Potto, He divides the Lemuridce into three 
sections. First, the true Lemurs, with long tails ; second, the 
Lorids (stenops), without tails, and with long limbs; and third, 
those with very short tails, or almost tail-less, oval or globose 
heads, and short fleshy arms Here he has two genera: 
I. Perodicticus, characterised thus : " Caput ovale, ore crasso 
obtuso. Aures liberee. Oculi subparvi. Index manus an- 
ticae abortus, in tuberculum coarctatus.'' And, IT. Nyctice- 
bus, " Caput globosum, ore conico. Aures in pelle absconditse 
occuli magni. Digiti normales." 
I may mention, in conclusion, that I find, since this paper 
was in type, that Van der Hoeven made a short communication 
