664 DR. J. MURIE ON THE SKELETON OF TODUS. [May 21, 



the skins of the Monkeys obtained by Mr. Buckley during his recent 

 expedition to Ecuador, I have been able to ascertain what the species 

 of Monkey observed, but not obtained, by Mr. Fraser was. Though 

 not undescribed, it turns out to be a rare species, the Ateles fusciceps 

 of Dr. Gray. 



The species was so named in manuscript by Mr Fraser in 1845, 

 when engaged in preparing a catalogue of this Society's former col- 

 lection. The typical specimen having passed into the British Mu- 

 seum, was first described by Dr. Gray, in the 'Proceedings' of this 

 Society for 1865, p. 733. 



Ateles fusciceps was the only species of Monkey obtained by Mr. 

 Buckley in Transandean Ecuador, although a second species, probably 

 a Mycetes, was observed. From the neighbourhood of Macas, on 

 this side of the Andes, Mr. Buckley has brought skins of five other 

 species — namely, Mycetes seniculus, Lagothrix infumata, Pithecia 

 monachus, Nyctipithecus lemurinus, and Saimaris sciurea. 



All these, however, are already known as inhabitants of Upper 

 Amazonia, and no doubt ascend the upper branches of the main 

 stream so far as they meet with a congenial country. 



Ateles fusciceps, of which I now exhibit the flat skin obtained by 

 Mr. Buckley, and a drawing prepared from it (Plate LIV.), is a 

 very well-marked species of this genus, readily known by its thick 

 black fur and deep coffee-brown crown. 



The hairs of the back have brownish tips. The skin measures 

 20 inches from the nose to the base of the tail, the tail 26 inches. 



There appear to be no traces of a thumb on the fore limbs. 



7. On the Skeleton of Todus, with Remarks as to its Allies. 

 By Dr. James Mubje, F.L.S. &c. (Communicated by 

 Professor Alfred Newton, F.R.S., V.P.) 



[Keceived May 3, 1872.] 

 (Plate LV.) 



When working at my memoir " On the Anatomy of the King- 

 fishers " I regretted much not having any specimen of Tody at my 

 command, nor even a skeleton to compare with that of Ispidina, to 

 which Todus in its external aspects bears resemblance. Thus placed, 

 I had to confine my osteological remarks to the assertions of others 

 concerning Todus, instead of basing them on my own observations 

 and comparisons side by side, which I should have preferred. 



Lately, Professor Alfred Newton has most kindly put at my disposal 

 a skeleton, which I eagerly avail myself of, to make good in part my 

 deficiency respecting this interesting genus. 



Unfortunately the species and sex of the bird are not known ; but, 

 as the donor observes to me in his note, " the osteology of any one 



