new Mollusks from South or Central Africa. 91 
An extremely pretty though very small shell, of which the 
three specimens in Mr. Layard’s collection are all more or less 
imperfect. They bear a decided superficial resemblance to 
certain marine forms of the genus Chemnitzia, the shell being 
very delicate, white, eight- or nine-whorled, the whorls 
gradated at the sutures and longitudinally finely ribbed with 
raised strie. 
11. Cionella ovampoensis, sp.n. (Pl. VI. fig. 1.) 
C. testa parva, aciculari, candida, tenuissima, apice obtuso; anfrac- 
tibus quatuor, ultimo producto, columella ad basin truncata ; 
apertura oblonga, labro simplici. 
Long. 3, lat. 1 mill. 
Hab. Ovampo-land (£. L. Layard). 
A very elegant, pure white, four-whorled shell, with very 
obtuse apex, a little recalling the Cwctlianella acicula (Miill.) 
of Europe and the British Isles. 
12. Pupa elizabethensis, sp.n. (PI. V. fig. 13.) 
P. testa minuta, aperte rimata, vitrea, albo-nitente, breviter cylin- 
drica; anfractibus septem, levibus subventricosis, minutissime 
sub lente striatulis ; apertura rotundata, plicis duabus intrantibus 
munita, altera parietali, altera columellari valde intrante ; peri- 
stomate paullum reflexo. 
Long. 3, lat. 1°20 mill. 
Hab. Port Elizabeth (Miss Glanville). 
This little Pupa isa shining, white, smooth species; with a 
strong magnifier the slightly ventricose whorls are found to 
be closely and finely striated; the mouth is furnished with 
two teeth-plaits, both deep-seated and extending far back, 
one parietal, the other behind the columellar margin ; the lip 
is also slightly reflexed. 
Four specimens. 
13. Pupa ovampoensis, sp. n. (Pl. VI. fig. 11.) 
P. testa rimata, prolongato-cylindrica, alba, tenui; anfractibus 
quinque, ventricosis ; apertura subquadrata; peristomate effuso, 
dentibus duobus munito, altero parietali, altero subtus marginem 
columellarem intrante. 
Long. 2, lat. 1 mill. 
Hab. Ovampo-land (#. L. Layard). 
A very neat though minute species, with conspicuously 
