South- African Land~M.ollusca. 453 



time or other, be able to collect a similar number in tliis 

 Way iu mauy localities. 



An organ of great interest is the spermatophore ; it is very 

 distinctive in the Peltatinae. If we knew what amount of 

 variation there may be in well-known species of the three 

 geuera — whether in a batch of the same species, taken at the 

 same time and in the same place, the S|iermatophores proved 

 constant inform — we should have a very valuable charactei", 

 both generic and specific. The labour of examination would 

 no doubt be great, both in finding and drawing the organ ; 

 yet it would be worth doing, and in these pages will be 

 found sometliing to start on. 



The following alterations have to be made iu the Explana- 

 tion of Plates, already published in Fart I. ('Annals^ for 

 January 1912) and Part II. ('Annals' for May 19I2j : — 



Part I. 



Plate i. figs. 1-1 b. Kerkophoriis corneas ? Maritzbiu'g : 

 is bicolor, sp. n. 



Plate ii. tigs. 2-2 b (Xo. 15) K., sp. n. ? Maritzburg : 

 is K. burnupi, sp. n. 



Plate ii. tigs. 3-3 a (Xo. 3379), K., sp. n. ?, uiidetermiued. Pinetown : 

 is K. poeppigi, Alke. (auimal j. 



Part II. 



Plate lii. figs. 1-1 6. K. jjoeppiyi, Mke. ? Pine Town, near Durban 

 (No. 3379) : 



is poepjniji. 

 Plate XV. tigs. 1-1 d. K. ampliut'a, M. & P. (No. 7) : 



is K. r natalensis, Krs. Maritzbiirg. 



I give the original descriptions of the first species obtained 

 by Menke and Krauss. It is unfortunate that from their 

 habitat, Durban, I have only been able to examme the 

 animal of one, detcrmiuetl as poeppigi, from Pinetown, near 

 to Durban. It would be most interesting to get a good 

 full-grown animal of K. natalensis, for I have only had for 

 examination a young specimen from Equeefa, agreeing best 

 with the typical form. 



Vitrina poeppiyii, Menke. 

 Symbolfe, iii. 1846, p. 81. 



" T. imperforata, globulosa, tenuissima, striatula, nitida, pcllucida, 

 lutescenti-cornea, liuea 1 rata supra peripheriam ciucta ; spira 

 brevissima, obtusa ; sutura submarginata ; anfr. 4, convexiusculi, 

 ultimus intlatus ; apertura rotundato-luriaris, margine dextro 

 subrepando, columellari leviter arcuato, subverticaliter desceu- 

 deiite. 



• Diam. luaj. It)!,, mui. !J, all. 7 uira." 



