In grass beside bush path. 



SPENCE : MOLLUSCA FROM THE BELGIAN CONSO. . 267 



Elizabetha. 



Achatina schweinfurthi Mts. By native paths. 



Ceras manyemaense Dup. and Putz. In grass by native patli. 

 One, in fine condition, of this rare shell agreeing with the author's 

 description in all except colour, which (light brown with dark 

 streaks) resembles C. dautzenbergi D. & P. 



Pseudoglessula (Kempio- 

 concha) hessei (Bttg.) 



Thapsia rufescens Pils. 



Ledoulxia mozambicensis 

 (Pfr.) 



Mesafricarion haliotides (Putzeys). Amongst grass. One 

 spirit specimen which I submitted to Dr. W. E. Collinge, who 

 kindly confirms my identification. 



Pleuroprocta silvatica Pils. Amongst grass. Two spirit 

 specimens — not full grown. 

 Iboro Island. 



Perideriopsis mvuluensis D. & P. On leaves of shrubs. One 

 slightly immature example. Not typical, colour being creamy with 

 narrow ill-defined dark band below suture. 



Ledoulxia mozambicensis (Pfr,) On leaves of shrub — 

 sp. unknown. 

 Alberta. 



Limicolaria walked mut. nudata Pils. Swarming on Iris 

 sp, in gardens. No striped typical ones. 



At Barumba, Aruwimi Dist., one dark juvenile Burtoa 

 nilotica (Ph.) was found "in broken wood at foot of tree in bush." 



H. hortensis var. arenicola, near Sittingbourne. — For the past two years 

 there has been a large colony of this variety on a wall near Sittingbourne ; with 

 one exception, every specimen I have seen has been of the band formula (12345), 

 which is otherwise very rare in the neighbourhood. I have never seen a specimen 

 of the typical colouration in this colony, the only specimen with a different band 

 formula was one (12) (345). The wall is a red brick one, on the edge of a pave- 

 ment, the only vegetation on it being ivy and a few lichens. It is also the only 

 locality near Sittingbourne for the scarce red variety of the moth Bryophila perla. 

 — H. C. HvGOi^s {Read before the Society, Nov. loth, 1920). 



