4.SQ Mr. M. Connolly on 



public and private collections under niainiscrii)t names, more 

 than one ot" which has already appeared in print and one, 

 at least, in syuouyray. I have, therefore, thought it advis- 

 able to retain, as far as possil)lc, the names originally 

 suggested by Preston, but, with his full approval, in order 

 to avoid the clumsy system of joint or sponsored nnmen- 

 clature, I accept all respoiisibility for authorship, uhile 

 tendering to ]\lr. Preston most grateful thanks for his 

 initiative and assistance. 



One or two species, however, originally distributed by him 

 as new, have since, from various causes, proved to be invalid 

 and may escape notice altogether in these pages. If, 

 therefore, on the conclusion of my articles, any collector 

 finds him!<elf in possession of a species bearing a manuscript 

 name bestowed by Preston and unmentioned by myself, 

 I will be glad to iufm-ra him as to the reason of its non- 

 j)ublication if he will communicate with me on the subject. 



Except where otherwise specified, the types of all the new 

 S])eeies are at present in my collectiou. 



The ircquent allusions to Pilsbry^s arrangement refer, 

 for the most part, to that adopted by him in his " lleview of 

 the Land Mollusks of the Belgian Congo" (Bull. Amer. 

 Mus. N. U. xl. 1919). 



Family Streptaxidae. 

 Genus Tayloria, Bourguignat, 1889^. 



Bourguignat founded this genus for two species, Zonites 

 ventrosa, Gibbons, and Tayloria jouberti, 13gt. I cannot 

 find that the genotype has ever been fixed, and therefore 

 nominate T, jouberti for that position. Bourguignat pro- 

 bably never saw ventrosa, for it w^as founded on a single 

 specimen, which appears to be lost, and I believe that no 

 others are known ; it is a very small shell, less than 4^ mm. 

 in diameter, and may not belong to the genus. 



On the other hand, T. jouberti ajipears to be one of the 

 group of Zonitoid Afiican Streptaxidse, some of which are 

 well illustrated by Preston f and are apparently closely 

 allied to the South American genus Artemon, Beck. 



Artemonopsis, Germain, 1908 J, founded for a small West 

 African species, appears to be a synonym of Tayloria. 



* Moll, de I'Afr. .5quat. p. 38. 



t P. Z. S. London, 1913, pi. xxxii. fjgs. 1-3. 



i Bull. Mus. Paris, xix. p. 124, and J. de C. Ivi. p. f)8. 



