20 



" The Uver was composed of four lobes ; the cy^ti'c lobe, or that 

 containing the gall-bladder, being the third from the right. The 

 gall-bladder was of an elongated form, and the cystic duct lortuous 

 at the commencement, as in tnost Oiiadrumuna. The spleen wa8 



2 inches long and broadest at the lovver part. 



" The viscera of the chest were as in the Mandrill, 

 "The lari/nx was as usual in Cercopiiheci and Macaci, viz with 

 two vvide lateral sacculi, and a middle pouch continued forwards 

 between the os hyoides and thyroid cartilage, and extending about 



3 inches under the skin of the neck. The aperture by which it 

 communicated with the larynx was large enough to admit the little 

 finger. The epiglottis was of a rhomboid form, with two small la- 

 teral processes, and an apex slightly notched. 



" The tongue was characterized by three fossulate papillce placed 

 in a triangle, the apex tovvards the epiglottis. In Macaci I have 

 found four of these papillcB similarly disposed, the apex being formed 

 by two placed close together. 



" No structiiral disorganization was met with in this dissection. 

 Abundance of bright yellow-coloured fat was found in different 

 parts of the body." 



A specimen was exhibited of a Lemuridous animal, recently pre- 

 sented to the Society by C. Telfair, Esq., Corr. Memb. Z. S. It 

 was shown by Mr. Bennetl to possess characters differing to so great 

 an extent froiu those of the previously knovvn genera of the family 

 to which it belongs, as to require its separation from thera as the 

 type of a nevv group, to which he gavę the name of 



Propithecus. 



Rostrinn mediocre. 



Scelides antipedibus longiores. 



Index abbreviatus. 



Cauda longa, pilosa. 



Dentes primovęs 4 : superiores coronidem versus lateraliter antice 

 expansi, ideoque ad coronidem approximati, subseriati; inferi- 

 ores approximati, proclives, externo utrinque majore : laniarii, 



\, -i- : molares ; superiorum priorės 2 cuspidati, 3tius 



elongatus, externė 2-tuberculatus, 4tus praecedenti similis 



; inferiorum primuš 1-cuspidatus, 2dus 3tiusque pluri- 



tuberculati =. 



Propithecus Diadema. Prop. dorso cinerascenti ; artubus, 

 prymna, caudd , fosciaąue Jrontali albis, illisj'idvo tinctis ; ver- 

 tice, nucha, manibusque nigris, 



Hab. Madagascar. 



The face is nearly naked, withshort blackish hairs about the lips, 

 and equally short yellowish white hairs in front of the eyes. Above 

 the eyes the long, silky, waved, and thickly set hairs vvhich cover the 

 body commence by a bandof yellovvish vvhite crossing the front and 

 passing beneath the ears to the throat. This is succeeded by black 

 extending ovcr the back of the head and neck; but becoming 



