18G,}.] MK. A. D. IIAU ri.KTf ON A NKW (JAI.ACJO. 231 



Tlic llipiiopotamus has never bred with us ; but I may state that 

 tlie period of gestatiou in tliis auiinal is known to be short. The 

 female iu the Amsterdam Gardens, wliieh has twice |)roduced young 

 in that estaliHshmeut, went only 7 montlis and 1 (i (hiys on the first 

 of these oceasions, and 7 months 20 days on the seeond. 



4. DlCSCRIl'TlON Ol- A NkW Sl'KClKS OF CiALA(JO. 

 By a. D. IJARTLKTr. 



(Plate XXVIII.) 



In the month of Novend)er last I had occasion to call at the hojisc 

 of Mr. L. A. Monteiro, and that gentleman showed me the animal now 

 before you. I at once told him that the animal was new and un- 

 known to me. Since that time I have taken every o|)|)ortunilv of 

 ascertaining if I was right in so saying ; and this morning I called 

 again upon Mr. Monteiro, who kindly lent mc the animal, with pw- 

 mission to exhibit and describe it this evening. I at once ))roc('eded 

 to the British Museum to compare this animal with the species in 

 that collection ; but nothing like this specimen is to be found there. 



1 have also the opinion of Dr. Gray (who has for some time devoted 

 much attention to this grouj) of animals), who kindly assistc^d me 

 in this examination, and stated that he believed the animal to bi; un- 

 known and undescribed. It differs from the known species in being Jf 

 larger and lighter in colour and in having a nuu-h longer tail. Mr. ^^ 

 Monteiro informs mc that it was sent to England by his son, Mr. 



J. J. Monteiro, who obtained it at ('uio Bay, to the south of Loando, 

 in Angola. It is very gentle, and sleeps much during the day, feeds 

 on fntit, bread, milk, and other sweet things, particularly bananas. 



The entire length of the animal is 28 inches, of which the tail 

 measures Hi inches. 



The colour is light chinchilla grey all over the head, body, and 

 tail, nearly white on the throat ; the toes and feet dark brown, nearly 

 black ; nose black ; the eyes greyish brown ; the ears nearly black, 



2 inches long, 1 \ inch broad at the i)ase. The animal has the 

 power of turning its ears back and folding them up when at rest. 

 When moving about or in search of food, they spread out and 

 stand upward and forward, rennnding one of the Aye-Aye ; hut 

 when folded back and down, the animal's face hears a strong resem- 

 blance to the Douroucouli. The })upils of tiie eyes are oval and ver- 

 tical. 



This animal is considerably larger than the specimen in the British 

 Museum, known as Ofn/icnus crassicaudatus ; but as I am \mable 

 to determine the exact structure of its teeth, in order to say posi- 

 tively that it belongs to that genus, I propose to name it Galayo 

 monteiri, in order to identify it with the gentleman who has added 

 from time to time many rare specimens to our eolleetion. 



