Geological Society, 357 



Brady pus violeta, sp. n. 



Allied to B. marrodon, but distinguished from tliat, as from 

 every other sloth, by the great extent of the yellowish velvety 

 hair of the face, which extends upwards on the crown to the 

 level of the ears nearly 60 mm. from its anterior commencement; 

 the hairs of the cheeks as far as the ears also of the same 

 colour and quality. Sides of throat likewise inclining- to 

 yellowish, in continuity witli the cheeks, but the chin dark 

 brown as usual, and the dark eye-streak also present. Nape, 

 shoulders, and middle line at withers brown, the rest of the 

 back nearly wholly white, as are also the liind limbs. Fore 

 limbs brown, marbled proximally with white. Under surface 

 dark brown anteriorly, whitisii brown posteriorly. Speculum 

 not known, the only specimen being a female. 



Skull like that of B. macrodon, the forehead a little more 

 swollen. Teeth of similar size and proportions. 



Sknll-measurements of type : — 



Naso-occipital length 72 mm. ; greatest breadth (on jugal) 

 49*5 ; nasals, length 14, least breadth 12'8 ; interorbital 

 breadth 24; palate length from gnathion 28'5 ; tooth-series 

 27*2 ; breadth between outer corners of pseudo-canines 20 ; 

 greatest diameter of pseudo-incisor 4, pseudo-canine 6, second 

 molar 4'8. 



Hah. Balzar Mountains, Guayas, W. Ecuador. 



Type. Adult female. B.M. no. 80. 5. 6. 83. Collected by 

 Mr. Illingworth. 



Cliaracterized by its nearly wholly velvet-clothed face. 



PROCEEDINGS OF LEARNED SOCIETIES. 



GEOLOGICAL SOCIETY. 



January 24th, 19 17.— Dr. Alfred Harker, F.R.S., President, 

 in the Chair. 



Mr. ScoEESBT KouTLEDUE, M.A., gave an account of Easter 

 Island. He said that the Expedition, that he had had the 

 honoiu- to command, was organized with the object of carrying 

 out a long-standing wisli of various bodies interested in anthro- 

 pology. This wish was that Easter Island, and otlier islands most 

 near to it, though far distant from it, should be thoroughly 

 examined, and that all information and material thereon found 

 should be carefully considered on the spot, or, if possible, be brought 

 back for comparative study. 



This programme necessitated a vessel being specially designed, 

 built, and equipped for the purpose. A schooner with auxiliary 

 motor power, the * Mana,' of 90 tons gross register, 78 feet 



