168 PilOF. G. B. HOWES ON HAPALE JACCilUS. [Feb. 1 i, 



black full-crested pileuiii, the lower parts?, sides of head (below 

 eyes), nuchal collar, lores, and frontlet white. 



Xenopsaris albinucha. (Plate VII.) 



PacJti/rJiampJnis alhinuclm, Bnrm. P. ZS. 1868, p. 635 ; Scl. et 

 llnds. Arg. Orn. ii. p. 222. 



Xenopsaris albinucJia, Eidgw. Bull. U. W. N. Mus. xiv. p. 479 

 (Oct. 22, 1891). 



Prospoietus alhimichus, Cab. Bericbt orn. Gesellsch. Berlin, 

 Bericht ix. p. 4 (Nov. 30, 1891) ; id. J. f. O. 1892, p. 120. 



Entire pileum (except narrow frontal band) down to the middle 

 of the eyes glossy black, with a slight bluish lustre ; narrow frontal 

 band (including nasal tufts), lores, suborbital region, ear-coverts, 

 and entire under portion of head, neck, and body, white ; a rather 

 narrow greyish-white nuchal collar (immediately below the black 

 pileum); hind neck and back uniform ash-grey; the secondaries 

 and rump similar, but browner ; wings, tail, and upper tail-coverts 

 greyish brown, the wing-coverts narrowly and indistinctly margined 

 with whitish, the tertials distinctly edged with white ; tail darker 

 than wings, especially touards the end, the shafts pale brown 

 basally ; outer tail-feather broadly edged and margined round end 

 \Aith white. Upper mandible black, lo\\ er greyish ; feet dusky 

 in dried skin. 



Whole length 5*0 inches, wing 2-4, tail 2*3, tarsus 0-.5. 



Hah. Sedge-beds on the shores of the llio de la Plata, near Buenos 

 Ayres {Burm.). 



February 14, 1893. 

 OsBERT Saltix, Esq., F.E.S., Vice-President, in the Chair. 



The Secretary read the follo\Aing report on the additions to the 

 Society's Menagerie during the month of January 1893 : — 



The total number of registered additions to the Society's 

 Menagerie during the month of January was 104, of which 31 

 Mere by presentation, 3 by exchange, (52 by purchase, 3 by birth, 

 and 5 on deposit. The total number of departures during the 

 same period, by death and removals, was 122. 



Prof. Gr. B, IIoAAes, F.Z.S., exhibited an abnormal sterniun of the 

 Connncn Marmoset (Ilcqnde jacclnis), and made the follo\\ing 

 remarks thereon : — The specimen Mas obtained from one of six 

 adult skeletons ' recently macerated. The mesosternum consisted 

 of five pairs of ossific elements, the anterior four of which were 

 repetitionally symmetrical, but disposed alternately, instead of side 

 by side as is most generally the case with the Mammalia. The 

 fifth pair were comparatively insignificant and altogether invisible 



' All epiphyses united. 



