360 Miscellaneous. 



into a simple arch, and the zygoma may be anchylosed with the 

 zygomatic process of the temporal bone ; and that both in Bradypus 

 and Cholcepus the two arms of the stapes are at first separate, and 

 subsequently become converted, by the deposition of new bony mat- 

 ter, into a plate or columella, which may be regarded as the normal 

 form of this ossicle in these genera. — Monatsber. der Akad. der Wiss. 

 zu Berlin, December 1864, p. 678. 



On the Transformation of the Ocular Peduncle into an Antenna 

 observed in a Species of Palinurus. 



On the 21st of November, 1864, M. Alphonse Milne-Edwards com- 

 municated to the Academy of Paris the following abnormal condi- 

 tion of the eye of a Langoustian Crustacean {Palinurus penicillatus, 

 Olivier) which had been sent to the Museum, among many other 

 specimens of Crustacea, by M. Roget de Belloquet, from the Isle of 

 Mauritius. 



On the right side all the organs were normally developed, and 

 so on the left, except the eye, which, instead of being so, carried a 

 long multiarticulate filament, similar in all respects to the terminal 

 filament of an antenna. 



The ocular peduncle preserves its basal part in its ordinary form ; 

 and even a rudimentary cornea is visible, from the centre of which 

 the filamentary appendage grows. Its length is about 4 centimetres. 

 It is finely articulated, and furnished with hairs upon the superior 

 border of its terminal portion, disposed in a manner similar to those 

 of the inferior filament of the true antennae. — Comptes Rendus, 

 torn. cix. p. 851. 



On a new Antelope from Zambesia. By Dr. J. Kirk. 



NeSOTRAGUS L1VINGSTONIANUS, n. Sp. 



Shupanga and Lupata, where it is named "Rumsa" or "Lumdsa." 



This small Antelope is very nearly allied to N. moschatus of the 

 island of Zanzibar, under which name it is probably mentioned in 

 Dr. Peters's ' Mammalia.' Yet it seems to me different from that 

 of Zanzibar, of which I have seen three recently killed specimens in 

 that island. The size of the two animals is nearly the same ; the 

 colour of that on the Zambesi lighter, and the hair softer, the ears 

 larger and broader, horns more closely ringed, and nostrils more 

 narrowed. 



The habits of this Antelope resemble those of the Zanzibar ani- 

 mal ; it frequents dense underwood jungle ; lives in pairs. On being 

 started, it runs quickly, not unlike a hare, turning quickly, and con- 

 cealing itself in some tuft of grass or small bush. 



It seems to me that between the specimen in the British Museum 

 from Zanzibar and the head from the Zambesi there are specific dif- 

 ferences, sufficient to justify the latter being at present regarded as 

 a distinct species. Better specimens of both are much needed. — 

 Proc. Zool. Soc. Dec. 13, 1864. 



