42 HENRY CLIFDEN BURNUP. 



berg Mountain, Somerset East, given in the description of 

 Ennea periploca, is erroneous (see p. 61). 



The right side of the parietal plait, which is very promi- 

 nent, arises higher on the body- whorl than the labrum ; the 

 upper lobe of the bipartite labral tooth is a little within the 

 plane of the aperture, the lower is more internal ; the short, 

 broad tooth on the columellar lip is nearly level with the 

 general plane of the peristome ; and the small basal tooth 

 stands well back from the edge. A narrow channel enters 

 the columellar plait from the rimal cavity, and the teeth on 

 the labrum. columellar lip and base, have corresponding 

 excavations behind the peristome. 



The types of all the so-called species here placed in the 

 synonymy, being in the British Museum, are not available to 

 me for examination, but I have been fortunate in securing, 

 from the collections of Messrs. Ponsonby, Farquhar, and 

 Langley, a very large series comprising co-types of every 

 form, except that which was described as E. labyrinthea. 

 These I have submitted to a searching study and careful 

 comparison, and cannot doubt that all belong to one variable 

 species, whose divergence from a common type is not wide 

 enough to justify the retention of any of the later names in a 

 varietal capacity. The form described as Ennea berthas 

 Melv. & Pons., as represented by my co-type, ex coll. 

 McBean, supported by seven other specimens from three 

 localities in Natal, which undoubtedly also belongs to the 

 same species, is specially considered hereafter. 



Of the form described as E. labyrinthea, alone, I have 

 been unable to obtain any reputed example, and so have only 

 had the original description and figure to guide me in uniting 

 it with E. farquhari. 



Melvill and Ponsonby not being able to concur in my views, 

 and I being unable personally to consult the types, and 

 hesitating to make su^ch a sweeping consignment to synonymy 

 without reference to them, Mr. Ponsonby most kindly 

 arranged, through Major Connolly, Avith Messrs. E. A. Smith 

 and G. C. Robson, of the British Museum, that the two last- 



