20 



■s^d^ 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 cj'sticduct tortuous 

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



2 inches long and broadest at the lower part. ^ 

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



!'<i»The liirijnx was as usual in Cercopiiheci and Mricnci, viz with 

 two wide lateral sacculi, and a middle pouch continued forwards 

 between the os hyoiiles 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 ajoex slightly notched. 



" The tongue was characterized by three {'o%^\\]?Lie papillic placed 

 in a triangle, the apex towards the epiglottis. In Macnci 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 fuund in different 

 parts of the body." 



A specimen was exhibited of a Lemvridous 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 



PROriTHECUS, 



Rosfrura mediocre. 



Scelides antipedibus longiores. 



Index abbreviatus. 



Cauda longa, pilosa. 



Denies primores ^: superiores coronidem versus lateraliter antice 

 expansi, ideoque ad coronidem approximati, subseriati; inferi- 

 ores approximati, proclives, externo utrinque majore : laniariiy 



\, 4- : molares ; superiorum priores 2 cuspidati, Stius 



elongatus, externe 2-tubercu!atus, 4tus praecedenti similis 



; inferiorum primus 1 -cuspidatus, 2dus Stiusque pluri- 



tuberculati =. 



Propithecus Diadema. Prop, dorso cinerascenti ; artubus, 

 pryvina, caiidd, fasciciqne frontali albis, illis J'ulvo tinctis ; ver-. 

 ' lice, nucha, manibnsque nigris. r; 



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 tlje 

 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 



