Bihliographical Notices. 403 



(1) B. tanganijik(e is almost exactly twice the size of 

 B. si/lvestris. 



(2) The clitellum of B. tanijamjihe is more extensive and 

 is developed all round the body instead of being saddle- 

 shaped. 



(3) The orifices of the spermiducal glands and the sperm- 

 duct are enclosed in a depressed and sucker-like area, which 

 is divided by a median furrow. In B. syhestris the clitelluni 

 is shorter and there is no mention by Michaelsen of the 

 depressed genital area and the groove dividing the two sides. 



(4) The duct of the spermatheca ap|)ears to be longer and 

 more slender in B. tang'iniiikce than in B. syluestris and the 

 diverticulum opens more distinctly into the duct. 



(5) The ne[)hridia of B. tangnnyihe are disposed in series. 

 Those of B. syhestris are " diffuse." 



(6) The sperm-sacs are somewhat different in the two 

 s])ecies. 



(7) The penial setje of ^. tanganyikce are corkscrew-shaped 

 at end and have fewer denticulations than in B. syhestris. 



BIBLIOGRAPHICAL NOTICES. 



The Fish River Bush and its Wild Aninuds. Bv W. T. Buck, 

 M.R.C.S., L.S.A. Edinburgh & London: Young J. Pentland, 

 1901. 



This little work consists of a series of articles on the Xatural 

 History of South Africa, from tlie ' Edinburgh Xew Philosoi)hical 

 Journal,' published in 1853. Although many of these are interesting, 

 it is doubtful whether they are suflSciently so to justify their 

 resurrection after half a century. 



' The Country.' Edited by Harrt Roberts. J. ^NI. Dent & Co. 



This is another addition to the long list of " Monthlies " having for 

 its object the record of the English fauna and flora, agriculture, 

 horticulture, and the habits, homes, and industries of the people of 

 rural England, as they exist at the present time. Folk-lore, 

 Archaeology, and Sports are also to find a place in its pages. 



Three numbers have already appeared, and these promise well 

 for the future. It is profusely and beautifully illustrated, and 

 the articles are good of their kind. 



