1847.] Further Notice of the Species of Wild Sheep. 359 



Polii. The most marked contrast from those of O. montana consists 

 in the fact that the great bulge in the upper portion of the posterior 

 surface of the horn in O. montana (which I refer to from memory only, 

 though with the utmost confidence), is comparatively little more than 

 indicated in O. ammon ; and the rugse are particularly large in the 

 latter species. Comparing the Society's stuffed specimen with Mr. 

 Hodgson's figures and description of his (so called) O. ammonoides, 

 the specifical identity is beyond all question ; and it follows that, as in 

 O. montana, some individual variation occurs in different specimens. 

 Thus, the horns of the Society's specimen are rather more bulky than 

 those figured and described by Mr. Hodgson, (though, by his own 

 showing,* he has represented them too small in his plate III). In the 

 Society's animal, the horns had about completed their fifth year of 

 growth ; and measure round the curve (following the upper angle 

 from the base — where the two are nearly in contact), thirty-three inches 

 and a half, of which the years of growth are successively seven inches, 

 eight and a half, nine, five and a half, and the basal (perhaps incom- 

 plete) four and a half; the circumference at base is eighteen inches, 

 width of anterior plane at base four inches, and depth at base poste- 

 riorly six inches and a half ; greatest width apart of the horns, mea- 

 sured externally, twenty-three inches ; the tips eighteen inches apart.f 

 Length of ears four inches and a half ; and of tail underneath (where 

 nude of hair) fully three and a half, exclusive of its upper vesture. The 

 total length of this specimen, when fresh, would have been fully six 

 feet ; but as none of its bones are preserved, except the horn-cores, I 

 will not (with the example of Martes tufceus before me) pretend to 

 give the minutiae of its admeasurements. 



5. O. calij vrniana, Douglas. Description cited from * Zoological 

 Journal ;' and the horns fully described by myself, and figured in Tay- 

 lor's plate, fig. 5. An unquestionable species. 



* " Head, to base of horn, one foot. Length of horn, by curve, three feet one inch." 

 These proportions are not preserved in the plate, especially in the lateral view of the 

 head. How is it, too, that the caudal disk is not represented in the figure of the female ? 



t In the skull of a young ram, with horns in their third year of growth, these curve 

 round outwards to the tip, where they commence to gyre forward and even somewhat 

 inward, as in the other, the tips ultimately turning outward in the old animal. In this 

 specimen, each horn measures 20£ inches round the curve, and their tips are that distance 

 apart : the first year's growth measuring 11| inches, and the second year's only five inches. 



3 b 2 



