THE NAUTILUS. a7 
From the same source and locality (Karghalik), I also obtained 
the form I have described as Bul. kuschakewitzi, var. Funki. 
II. Pseudiberus uniformis n. sp.—Helix plectotropsis (in parte) von Mart. et al—H. 
plectotropsis var. uniformis, Anc. olim, 
This is the so-called variety that I had formerly looked upon (Le 
Naturaliste, 1887, p. 167) as a variety of Martens’ Helix plectotropis. 
At that time I had a single specimen of the latter, but I now have 
more of the typical form (from Lake Tssyk-Kul and Karghalik) for 
comparison, so that I consider wniformis a very distinct, although 
allied form. Altogether it comes from a different district (Arassan 
Culak) and appears to be very constant. The characteristic features 
having already been described by myself in the paper I alluded to, 
I shall simply say that wniformis is a paler and more depressed shell 
than plectotropis, with a wider umbilicus and much more acute keel. 
III. Pseudiberus anisopleurus n. sp. 
Shell rather thin, of a greenish-horn color, coarsely sculptured, 
somewhat shining, closely related in form, size and shell characters 
to Nevill’s mataianensis, found in the Dras Valley, region of Ladak, 
but of different and uniform color. Spire convex, not much eley- 
ated, obtuse. Whorls 5, convex, furnished with broad, distant and 
irregular ribs, closer and more regular on the under side, but never 
obsolete. Suture furnished with an appressed keel, canaliculate 
above. Body whorl briefly, but not abruptly falling in front, con- 
vex above the inserted keel, more so below, the keel somewhat irreg- 
ular, margined on both sides, especially above where the impressed 
line is very conspicuous. Umbilicus medium-sized. Aperture 
oblique, transversely oval, livid within, scarcely angular internally, 
barely lunate. Peristome white, moderately thickened, expanded, 
reflected below, chiefly towards the umbilicus. Margins not remote, 
connected by a thin shining callosity. 
Great. diam. 143, less. 123 ; height 8, of aperture 62 mill. 
‘Locality unknown, but judging from its very well marked affini- 
ties, this fine new species for which I am indebted to my friend Dr. 
A. Vayssiere, is undoubtedly from Central Asia. At a glance, I 
had mistaken it for mataianensis, which is known to me from the 
description and figure only, but am now satisfied it is very distinct. 
The color, sculpture and characters of the suture are not the same. 
In the latter respect the present Pseudiberus is more like the true 
P. plectotropis, but the color is equally different, the sizé smaller 
and the ribs larger and much less numerous and regular. 
