56 



Seven species of Birds of Paradise, presented to the Society by 

 the Duke of Northumberland, were exhibited at the Meeting. 



A collection of Birds and Molluscous animals, from Messina, were 

 also exhibited, these specimens having been presented to the Society 

 by Madame Power, Corr. Memb. 



Mr. Ogilby characterized a new species of Monkey, under the 

 name of Papio ochreatus. "I saw this animal" (observed Mr. 

 Ogilby) " in a travelling collection last June. It was of a uniform 

 dull black colour on every part of the body, both above and below, 

 except the arms and legs, from the paws to the elbows and knees, 

 respectively, which were dark gray, as was likewise the space be- 

 tween the scrotum and the callosities ; the scrotum itself was dirty 

 flesh-colour ; the face and ears naked and black ; the naked part of the 

 hands and feet brown, and there was a large naked patch, of the 

 same colour, surrounding the callosities ; but whether natural, or the 

 effect of accident, I am unable to determine. The ears were rounded, 

 and less pointed than in the Papios generally ; the countenance re- 

 sembled that of the Pig-tailed Baboon (P. Ncmestrina), but the face 

 was more attenuated ; size that of the Pig-tail. I was unable to 

 learn whence the indi%'idual here described had been obtained. It 

 constitutes a very distinct species, and may be characterized as fol- 

 lows : — 



" The Booted Baboon, Papio ochheatus : P. supra subtusqueniger, 

 brachiis et cruribus canis." 



A species of Trionyx, or, according to MM. Dumeril and Bibron, 

 Gymnopus, was exhibited. This specimen had lived for some time 

 in the Society's menagerie, having been sent from the Euphrates by 

 Colonel Chesney. 



The following description and observations relating to this animal 

 were communicated by Mr. Martin : — 



" Total length, from the tip of the muzzle to the end of the tail, 

 two feet ; width about one foot ; head and neck, measuring to the 

 anterior edge of the carapace, seven and three quarters inches : cara- 

 pace slightly convex and oval, slightly truncated posteriorly ; com- 

 posed of nine costal plates, the ribs being eight in number ; a double 

 mesial furrow runs along the back, leaving a slightly convex elevation 

 between them : between the first, and most anterior, of these plates 

 and the second, are two depressions, each about half an inch in di- 

 ameter, placed near the mesial line, and separated by a space less 

 than a quarter of an inch in extent. The whole upper surface of the 

 carapace, excepting at the margin, irregularly reticulate. The de- 

 pressions between the costal plates are well marked. The length of 

 the carapace is nine inches, and the breadth seven and three quarters 

 inches ; on the sides of the body the coriaceous membrane extends 

 about two inches beyond the lateral margins of the carapace, 

 the ribs themselves extending about one inch find a half beyond the 

 carapace. Towards the hinder part of the body the membrane gra- 

 dually increases in width, and posteriorly over the tail it had at- 



