Till-: ANNALS 



AND 



MAGAZINE OF NATURAL HISTORY. 



[Frr.HTFI SKIIIES.] 



No. 33. SEPTEMBER 1910. 



XXVTII. — .1 Survey of the South-African Sfenogyrinap, toith 

 Descriptions of several new Species. By M. CONNOLLY. 



[Plate VI.] 



Ever since Krauss, in 1848, descriljed, under the names of 

 Bulimus turriformis and B. linearis, specimens of shells 

 brought by J. A. Wahlberg from Natal and Mt. Mohapaani 

 respectively, there has existed some confusion regardin^j; them, 

 which has rendered difficult the task of differentiating be- 

 tween them and other closely allied members of their family 

 which abound over a great part of the Dark Continent. 



Both Krauss's descriptions can be and have been applied 

 by different authorities to totally different species from widely 

 divergent localities, while his figures do not sufficiently brin-^ 

 out the details lacking in his descriptions. 



Thanks to the courtesy of Dr. iSigalmar Th6el, of the Royal 

 Aciidemy of Stockholm, I have been privileged to examine 

 original specimens collected by Wahlberg and determined by 

 Dr. Krauss. The results are of considerable importance, and 

 would alone justify the appearance of a paper on the subject. 



The determination of Krauss's species leaves without names 

 several forms, some of which have been long known Vi 

 collectors, but more or less inaftpropriately ret'crred by them 

 to turriformis or lintaris. By the classification of some of 



Ann. d' May. X. Hist. Ser. 8. Vol. vi. 17 



