314 MR. p. L. SCLATEIl ON WILD GOATS. L^I'iy I'^J 



The variation in position of these apertures is of importance, because 

 certain genera (e. g. TJrochceta, Eudrilus, Rhinodrilus) are charac- 

 terized by the different position of the male pores, which are ahnost 

 always {Perichada, Perioni/.v, Metjuscolex, Anteus, and Microchceta) 

 upon the 1 8th segment. In one instance (No. 6) there were two [>airs 

 of male generative orifices on following segments (14, l.i), and on 

 segment 16 a pair of orifices which appear to be papillae, since they 

 are not furnished with the prostates of the anterior orifices. The 

 presence of two pairs of male orifices, each with their own prostate, 

 is of importance, since a geims (Acanthodri/us) is mainly distinguished 

 on account of this very peculiarity. Tlie normal individuals of 

 Perionyx excavafus have no genital papillae, which are so charac- 

 teristic of many species of Perichceta ; in the variety just mentioned, 

 as well as in No. 8, there were a pair of similar papillae. 



Nephridia. — In one instance I observed au alternation in the 

 position of the nephridial pores, confined, however, to a single pore, 

 which was placed considerably nearer to the dorsal median line than 

 the pores on the preceding and ensuing segments. 



In conclusion I would again point out that the variations recorded 

 in this paper mainly affect the generative system, which is known to 

 exhibit such characteristic dillerences in various genera and species. 

 I have not noticed any prominent variations in other organs. 



3. Remarks on the various Species of Wild Goats. By 

 P. L. ScLATER, M.A., Ph.D., F.R.S., Secretary to the 

 Soeiety. 



[Received May 17, ISSd.] 

 (Plates XXXI. & XXXII.) 



The male Sinaitic Ibex which we received as a present from 

 Mrs. Laing in December 1884' has now become a fine animal. As 

 the first of the s[)ecies that has reached the Society's Gardens, I 

 have thought that a portrait of it would not be inappropriate to the 

 Society's 'Proceedings;' and I have accordingly had the accom- 

 panying sketch (Plate XXXII.) prepared by Mr. Sniit, which will 

 give a good idta of the original. 



The animal starids about 31 inches high, and is generally of a dark 

 rusty brown colour, with black dorsal stripe and limbs, the latter 

 being white on the inner sides and on the knees. 



I take this opportunity of offering a few remarks on the known 

 species of Wild Goats and their distribution. I will mention them 

 in geographical order, commencing wiLh the westernmost species, and 

 proceeding eastwards, alluding especially to those of which we have 

 received living specimens. 



1 See P. Z. S. 1885, p. 2. 



