This bird differs from all the known species by its small bill, which 

 is much shorter than the head ; and by the rich golden-purple tail 

 composed of very broad feathers. 



Trochilus eurypterus. Troch. suprajusco-viridis, subtus ci- 

 nereo viridique variegatus ; caudd rotundata, atro-aureo-viridi, 

 rectricibus lateralibus apice cinereis ; alis latissimis Jusco-atris : 

 rostro brevi, recurvato, mandibula inferiore alba. 

 Longitudo, 4^ unc. 



Trochilus flavescens. Troch. aureo-viridis ; capite guldque 

 splendenti aureo-smaragdinis ; caudd subfurcatd, albo-jlave- 

 scenti, rectricibus lateralibus ad margines, mediisque totis aureo- 

 olivaceis ; alis atro-fuscis, subtus pallide rufescentibus : rostro 

 mediocri, recto, 

 A species resembling Troch. rubineus, Auct, in its size, and 

 nearly allied to that bird. It differs, however, in the collar, which 

 is golden green, and in the tail-feathers, which are (with the ex- 

 ception of the middle pair,) yellowish white. 



Trochilus Gouldii. Troch. viridis ; jugulo pallide smaragdino ; 

 caudd longissimd, forficatd, rectricibus rotundatis, exterioribus 

 k\ uncialibus nigris, ad apices aureo-viridibus, mediis brevibus, 

 cceteris gradatis aureo-viridi splendentibus ; alis mediocribus ro- 

 tundatis ; rostro parvo, recto. 

 Long, corporis, 2 unc. ; rostri, 3^- lin. 



The most remarkable feature in this elegant little bird is its long 

 and luminous green tail, in the form of which and in the arrange- 

 ment of the feathers it approaches the ^fire-tailed Humming-Bird, 

 Trochilus sparganurus, Shaw, and likewise the Nouna Koali of M. 

 Lesson's ' Supplement,' pi. 35. 



Preparations were exhibited of the stomach, and of the tongue, 

 larynx and trachea of a Jaguar, Felis Onca, Linn. They were ob- 

 tained from an individual which lately died at the Society's Gar- 

 dens, respecting the dissection of which Mr. Martin read, at the re- 

 quest of the Chairman, the following notes. 



" The Jaguar which died a few weeks since was a full grown fe- 

 male, and although in height less than the Leopard, appeared more 

 muscular and strongly made. The length of the body, exclusive 

 of the tail, was 3 feet 2 inches ; the tail measured 2 feet. 



" The small clavicles which are found in the feline tribe in general, 

 were in the present instance barely 2 inches in length, simply im- 

 bedded in the muscles of the chest, and without any ligamentous 

 attachment either to the scapula or sternum. 



" The lungs consisted of three lobes on the left side, and four on 

 the right, of which the posterior was furnished with an appendix 

 or process, situated in a cavity or kind of inferior mediastinum hav- 

 ing its walls (which were incomplete on the right but complete on 

 the left side,) formed by a reflexion of the pleura passing from the 

 heart, the diaphragm constituting its base. This structure is, I be- 

 lieve, to be found in most Mammalia. 



u The immense volume of the chest, as contrasted with that of the 



