APPENDIX GASTROCOPTA. 359 



lower joined together. Peristome a little expanded, the mar- 

 gins converging. Length 1%, diam. maj. 1 mm. (JicUeli). 



Abyssinia : Habab, on Nakfa, in the gorge of Asqaq. 



Pupa haggenmacheri JICKELI, Fauna der Land- und Siiss- 

 wasser-Mollusken Nord-Ost-Afrika's, in Nova Acta Acad. Caes. 

 Leop.-Carol. Germ. Nat. Cur., vol. 37, 1875, p. 118. 



It is readily distinguished from the preceding [Pupa kliw- 

 zingeri and Pupa pleimesi] by the more compressed shape, 

 and further differs from P. klunzingeri by the second colu- 

 mellar fold and the third palatal fold ; from P. pleimesi by the 

 absence of a second denticle on the parietal wall (Jicketi). 

 The single specimen found was broken in measuring. It has 

 not been figured. 



GASTROCOPTA DAMARICA (Ancey). Page 125. 



A specimen of the form described as Pupa ridibunda M. & 

 P., from Cradock (Farquhar) is drawn in pi. 46, fig. 12. It 

 differs from the specimens of damarica already figured by 

 being decidedly more sharply striate, and by having the lower 

 palatal fold somewhat larger, entering more deeply, or in some 

 specimens more immersed as a whole. The peristome is con- 

 tinuous, as a thin, slightly raised ledge, across the parietal 

 wall, while in typical damarica it is very short and adnate. 

 Length 2.1 mm. These small differences will probably not 

 prove constant enough for recognition of ridibunda as a sub- 

 species, but this point can be determined only by the examina- 

 tion of long series. 



GASTROCOPTA (?) INSULSA (Preston). 



The figures of Ennea insulsa Preston, Proc. Zool. Soc. Lon- 

 don, 1913, p. 205, pi. 33, figs. 13, 130, from Gazi, British East 

 Africa, are so similar to Gastrocopta damarica in shape, size 

 and teeth that I suspect a mistake in the genus. As I have 

 not seen the shell, and nothing is said of its texture, the ques- 

 tion is left to those having access to specimens. 



P. 179. TONKINIA MIRABILIS Mab. This species has been 

 shown to belong to the Streptaxidce, in which TonUinia is a 

 valid genus. See Kobelt and Von Moellendorff, Monograph 

 of Streptaxida in Krister's Conchylien Cabinet. 



