new Species of Knnea from South Africa. 479 
acute and prominent, the labial tooth bifurcate; the columellar 
plait, however, is smaller and simple. 
This is a very beautiful form, though so small. 
Ennea labyrinthea, sp. n. (Pl. XVIII. figs. 7, 8.) 
E£. testa perminuta, rimata, breviter cylindracea, tenui, delicate 
pellucente; anfractibus quinque, nitidis, ventricosulis, apud 
suturas compressis, undique longitudinaliter fere rectistriatis ; 
apertura ovata; peristomate pellucente, crassiusculo, dente parietali 
permagno, dente labiali apud medium sulecato, parte inferiore 
suberecto, basali minimo, plica columellari magna, effusa, valde 
intrante. 
Long. 1°50, lat. -85 mm. 
Hab. Grahamstown. 
An exceedingly minute but very wonderfully constructed 
species, of which we have seen as yet only two specimens. 
The shell is transparent, extremely delicate, and needing the 
aid of a lens of considerable power to show effectively the 
complicated peristomatal processes. The parietal plait is large 
and prominent, the labial tooth furrowed bipartitely, the lower 
division being effuse, extending far across the aperture, and 
curving upwards. The basal tooth is very small, but the 
columellar plait is conspicuous and deep-seated. In fact the 
mouth is almost closed by these labyrinthine elaborations ; 
whence the specific name chosen. ‘This, the smallest of the 
many Hnnee known from South Africa, is unquestionably 
the most remarkable. 
Ennea Margarette, sp.n. (Pl. XVIII. fig. 1.) 
E, testa breviter cylindriformi, tenui, levi, nitida, ad suturas crenu- 
lata; anfractibus sex, longitudinaliter levissime  striatulis ; 
apertura trigonali, labro exteriore valde sinuoso, dentibus plicisve 
quatuor instructo, parietali acuto, conspicuo, labiali basalique 
parvis, plica marginem infra columellarem effusa, interna. 
Long. 3°50, lat. 1°50 mm. 
Hab. Grahamstown. 
Allied to £. cémolia, but abundantly distinct from that 
species. The penultimate and antepenultimate whorls are 
narrower than the corresponding whorls of cemolza, the shell 
is larger, and the shape of the mouth different, the exterior 
lip being sinuous and bearing the processes (labial and 
basal) on the bends of such sinuosities. 
Ennea Wottont, sp.n. (Pl. XVIII. fig. 6.) 
E. testa subrimata, obtusa, cylindracea, corneo-fusca ; anfractibus 
septem vel octo, ad suturas impressis, ventricosulis, omnibus 
34* 
