No. 114. 



ABSTRACT OF THE PROCEEDINGS 



OF THE 



ZOOLOGICAL SOCIETY OF LONDON.' 



November 26th, 1912. 

 Dr. A. Smith Woodward, F.R.S., Vice-President, in the Chair, 



The Minutes of the last Scientific Meeting were confirmed. 



Mr. Oldfield Thomas, F.R.S., F.Z.S., exhibited and made 

 remarks on a peculiar Amazonian Monkey (CalUmico goeldii) 

 which showed characters intermediate between those of the 

 ordinary American Monkeys (Cebidce) and of the Marmosets 

 ( Callitrichidce) . 



Mr. C. Tate Kegan, M.A., F.Z.S., exhibited male and female 

 examples of Cynolehias bellottii, a Cyprinodont Fish from the 

 La Plata, to illustrate the remarkable sexual characters. 



A paper entitled " On the Structure of Bone in Fishes : a 

 Contribution to Palfeohistology," was read by Mr. E. S. Goodrich, 

 M.A., F.R.S., F.Z.S. He stated that a microscopic examination 

 of the bone of the Actinopterygian Fishes showed that in those 

 groups which are provided with lepidosteoid ganoid scales 

 [Amioidei (Protospondyli) and Lepidosteoidei (Aetheospondyli)] 

 the characteristic lepidosteoid histological structure extended 

 throughout the endoskeleton as well as the dermal bones. No 

 other fishes are known to have this lepidosteoid structure, either 

 in the scales or in the skeleton. 



A paper on the Land Crayfishes of Australia was received from 

 Messrs. Geoffrey W. Smith, M.A., and E. H. J. Schuster, M.A., 

 D.Sc, F.Z.S. 



This paper dealt with the genus Engceus, a group of Victorian 



* This Abstract is published by the Society at its offices, Zoological Gardens, 

 Regent's Park, N.W., on the Tuesday following tlie date ot Meeting to which 

 it refers. It will be issued, along with the 'Proceedings ', free of extra charge, 

 to all Fellows who subscribe to the Publications ; but it may be obtained on the 

 day of publication at the price of Sixpence, or, if desired, sent post-free for 

 the sum of Six Shillings per annum, payable in advance. 



