372 Dr. A. G. Butler on 



This species may be distinguished from G. carinatus, 

 Pennant, by its more rounded, less angular whorls, longer 

 and straighter columella, and yellow-tinged mouth. Between 

 tlie spiral ridges appear numerous fine lirse, crossed by fine 

 close-set laminae, from which character I propose the name. 



XLII. — On Butterflies collected between Chinde and Mandala^ 

 British Central Africa, hy Edward M. de Jersey, Esq., in 

 March and April, 1899. By A. G. Butlek, Ph.D., 

 F.L.S., F.Z.S., &c. 



The collection of which this is an account is not a very large 

 one, but contains some interesting forms of Acrcea, three 

 males of Mylothris Riippellii, and several other species of less 

 interest. 



The following is a list of the species : — 



Nymphalidse. 

 1. Limnas chrysippus, Linn. 

 S S ^ > Mandala, llth April, 1899. 



2. Melanitis ismene, Cram. 



$ , between Chiromo and Katunga, 6th Aj)ril, 1899. 

 " Did not seem to leave dark thick bush : had to be driven 

 out." 



3. 8amanta perspicua, Trimen. 



S Sy Mandala, llth April, 1899. 



Both specimens belong to the typical wet-season phase, 

 but the irides of the ocelli are very narrow and smoky. 

 Prof. Aurivillius still doubts, as I did at first, that S. Simonsi 

 is the dry form of this species ; but we have an intermediate 

 example, received from Portuguese East Africa, and that, I 

 think, should settle the question beyond all dispute. 



4. Neoccenyra ypthimoides, Butler. 



S S ^ , Mandala, lOtli and llth April, 1899. 



We recently had an example of N. victories, Auriv., given 

 to us by the Rev. A. Dewar, who obtained it in company 

 with iV. ypthimoides on the Stevenson Road on the plateau 

 between Tanganyika and Nyasa; it is quite distinct from 

 iV. eatensa, having much more the outline of N. Gregorii. 



