1868.] THE SECRETARY ON ADDITIONS TO THE MENAGERIE. 261 



It has been a matter of much surprise to me to find such distinct 

 and consistent differences between the species that I have had the 

 opportunity of observing ahve, even where they are closely allied to 

 one another as regards their shells ; and I have found these differ- 

 ences of great assistance in determining them. 



May 14, 1868. 



George Busk, Esq., F.R.S., V.P., in the Chair. 



Mr. P. L. Sclater called attention to some of the recent additions 

 to the Society's Menagerie, amongst which were particularly noticed 

 the following : — 



1 . A young Caiman from Paraguay, presented by George Wilks, 

 Esq., C.M.Z.S., February 4th. Thisspecimen had been determined 

 by Dr. Gray as belonging to his species Jacare longiscutata*, and 

 was of interest as indicating the true patria of this rare species. 



2. A Smooth-headed Capuchin Monkey {Cebus monachus, F. 

 Cuv.), remarkable for its large head covered with short recumbent 

 hairs, very different from those of the Cebi ordinarily seen in the 

 Society's Menagerie, where this species was believed to have never 

 been exhibited before. The present individual had been deposited 

 by Mrs. Pascoe Dupre Grenfell, on the 26th of February, and 

 appeared likely to do well in the Menagerie. 



3. A Thick-tailed Opossum {Bidelphys crassicaudata, Desm.), 

 from the Argentine Republic, presented by George Wilks, Esq., 

 C.M.Z.S., March 5th, being a fine example of this rare species. 



4. A Burrowing Owl {Pholeoptynx cunicularia, Mol.) from the 

 same locality, and presented by the same donor. No sooner had 

 this bird been placed in its cage than, true to its habits, it had 

 excavated a hole in the soil at the bottom, into which it always 

 retreated when threatened. 



5. A Wrinkled llornbill(5Mcero«cor?-M<7a^M«,Temm.) from Borneo, 

 obtained by purchase on the 27th March. This bird differed from 

 Temminck's figure (PI. Col. 531) in having the ends of the tail-feathers 

 white instead of rufous — and increased the species of Hornbills now 

 living in the Society's Gardens to seven in number (Cf. P. Z. S. 18u7 

 p. 890). 



6. A male example of the Bornean Fire-backed Pheasant {Evplo- 

 camus nobilis, Sclater, P. Z. S. 1863, p. 119, t. xix.) obtained at the 

 same time, and believed to be from the same locality. 



7. A Spur-winged Goose {P/ectropierus yambensis) from the 

 Shire River, Eastern Africa, presented by Lieut. R. M. Sperling, 

 R.N., and of much interest as proving that this species, and not 



* Trans. Zool. Soc. vol. vi. p. 1(>4. i. xxxiv. 



