On the Angwantibo of Old Calabar. 



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 Lemuridoz 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, II. 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 



