18/9.] PROF. GARROD ON THE ANATOMV OF THE HOATZIN. 109 



took place in these birds. Again, the bird does not seem to be a 

 young one. 



"The Mifua in question, was presented by a patron of our garden, 

 and IS there named ' Mitua brasiliensis.' " 



Mr. Sclater stated that tlie bird in question, having recently died 

 had been presented to the Zoological Museum of Copenhagen, and 

 that Prof. Reinhurdt had forwarded it to him for examination. ' Mr. 

 Sclater then proceeded to remark on the specimen, and stated that 

 he quite agreed with Prof. Reinhardt that it must be considered as 

 the representative of a new and distinct species, which Prof. Rein- 

 hardt had proposed to call Mi(ua salviniK 



Prof. Reinhardt had ascertained the sex by dissection to he female ; 

 but the male would probably scarcely differ. The dimensions were 

 nearly those of M. tomentosa ; and the species should stand next to 

 that species in Mr. Sclater's arrangement (Trans. Zool. Soc. vol. ix. 

 p. 284), with the following differential characters : — 



Nigra purpnreo nitens ; ventre imo et caudce apice albis ; pilei 

 plumis elongatis. sicut in M, ivihexos&jacentibus ; loris et capitis 

 laterihus dense plumosis ; rostro sicut in M. tomentosa /or/««/o 

 sed paitlo longiore et minus alto, toto rubra ; pedibus rubris : 

 long, tota circ. 2- 10, alcB 1.5, caudce 12-5, tarsi A-7. 

 Obs. Sp. ventre albo satis distincta, quoad rostrum ad M. tomen- 

 tosam, sed quoad cristam magis ad M. tuberosum appropinquaus. 



Mr. R. Bowdler Sharpe exhibited a series of Bulwer's Pheasants 

 {Lobiophasis bulweri) from the Lawas river, N.W. Borneo, col- 

 lected by Mr. W. H. Treacher, Acting Governor of Labuan. The 

 series represented every stage of plumage of this Pheasant, and 

 conclusively proved that L. castaneicaudafus, Sharpe, was the 

 immature male of L. bulweri. 



The following papers were read : — 



1. Notes on Points in the Anatomy of the Hoatzin [Opistho- 

 comus cristatus). By A. H, Garrod, M.A.^ F.R.S., 

 Prosector to the Society. 



[Eeeeived December 9, 1878.] 



Prof. Newton having most kindly placed in my hands for dissec- 

 tion three specimens of Ojnsfhocomus cristatus preserved in spirit, 

 1 am able to add a few details to the accounts which have already 

 appeared on the structure of this peculiar bird. 



In his valuable paper in this Society's ' Proceedings '% "On the 

 Classification and Distribution of the Alectoroniorphae and Iletcro- 



' Cf. Vid. Medd. Nat. For. i Kjobenbavu, Jan. 8, 1879. 

 ^ P. Z. S. 1868, p. 294. 



