20 



M The liver was composed of four lobes ; the cystic 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 tortuous 

 at the commencement, as in most Quadrumana. The spleen was 



2 inches long and broadest at the lower part. 



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



"The larynx was as usual in Cercopitheci and Macaci, viz with 

 two wide 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 papilla placed 

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

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

 by two placed close together. 



" No structural 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. Bennett to possess characters differing to so great 

 an extent from those of the previously known genera of the family 

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

 type of a new group, to which he gave the name of 



Propithecus. 



Rostrum mediocre. 



Scelides antipedibus longiores. 



Index abbreviatus. 



Cauda longa, pilosa. 



Denies primores 4 : superiores coronidem versus lateraliter antice 

 expansi, ideoque ad coronidem approximati, subseriati; inferi- 

 ores approximati, proclives, externo utrinque majore : laniarii, 



-}-, 4- : molares ; superiorum priores 2 cuspidati, 3tius 



elongatus, externe 2-tuberculatus, 4tus praecedenti similis 



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



tuberculati =>. 



Propithecus Diadema. Prop, dorso cinerascenti ; artubus, 

 prymna, caudd, Jasciaque frontali albis. Mis fulvo tinctis ; ver- 

 tice, nucha, manibusque nigris. 



Hab. Madagascar. 



The face is nearly naked, with short 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 which cover the 

 body commence by a band of yellowish white crossing the front and 

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

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



