192 Messrs. J. C. Melvill ayid J. H. Ponsonby on 



either in this lady's book. I note, however, that she had 

 been in India and Ceylon." It seems just possible, there- 

 fore, that these specimens may have been really collected in 

 India and wrongly ascribed to Soutli America. 



EXPLANATION OF PLATE IV. 



Fig. 1. Waxy tests of C. africanus from Cape Colony in situ on twig of 



Acacia (nat. size). 

 Fiy. 1 a. Female insect denuded of wax. Dorsal view (enlarged). 

 Fig. 1 h. Ditto. Side view (enlarged). 

 Fig. 1 c. Ditto. Older example. 

 Fig. 1 d. Ditto. Stigmatic cleft and sjjines. 

 Fig. 1 e. Ditto. Antenna with eight joints. 

 Fig. If. Ditto. Antenna with seven joints. 

 Fig. 2. C. africanus, var. cristatits, from Natal, denuded of wax. 

 Fig. 3. C. ceriferus, from Ceylon, denuded of wax. Dorsal view. 

 Fig. 3 a. Ditto. Side view. 

 Fig. 3 b. Ditto. Stigmatic spines. 

 Fig. 4. C. australics (= C. ceriferus , ^vl'v ^ . 



20th July, 1899. 



XVI. — Further Contribution towards a Check-list of the non- 

 Marine MoUuscan Fauna of South Africa, with Descriptions 

 of Fonrteen new Species. By James CosmO Melvill, 

 M.A., F.L.S., and John Henry Ponsonby. 



[Plate III] 



In December 1898 we published a first " contribution " *, 

 which was shortly afterwards followed by Dr. Sturany's 

 * Catalog ' t, thanks to which excellent work and to informa- 

 tion from other sources we are enabled to make various 

 additions to our original list. We have also received fresh 

 material from several friends in South Africa, with the result 

 that fourteen new species (many of them, as will be seen, of 

 peculiar interest) are described in this paper. 



Addenda et Corrigenda. 



(The pages quoted are those of our above-mentioned Check-list.) 



N.B. — The asterisk denotes that we have not seen those shells to the 

 names of which it is prefixed. 



Page 171. Add Helicarion leucospirn, Pfr. ( Vitrina) Proc. Zool. Soc, 

 1856, p. 326 ; Rve. Conch. Icon. fig. ^l.—Hab. Natal {cf. 

 Cox, Mon. Austr. pi. xiv. fig. 6). 



* Proc. Mai. Soc. vol. iii. p. 166. 



t ' Catalog Siidafrik. Land- und Siisswasser Moll.' (Wien, 1898). 



