274 PROCEEDINGS OF THE ACADEMY OF [1893. 



ually deep descending ; suture rather impressed ; aperture very 

 oblique, little crescentic, transversely oval, rounded with the margins 

 much approximate; peristome widened [everted], thinly lipped, 

 yellowish horn-colored, inferior margin reflexed. Size 3 : 2f-2 

 mm. 



(Siberia : Jarzowa, Selo at 60° 10', and Werschininski 68° 55' ; 

 fossil in southern Germany.)" Translated from Westerlund, Fauna. 



I have seen no recent Asiatic specimens. From Europe there is 

 a fossil from Kroellwitz, near Halle on the Saale, Saxony. Ten speci- 

 mens before me, obtained from two different parties under the name 

 of Hel. temdlabris A. Br., are nearly alike except for slight 

 differences in size, represented in Man. Conch., PI. 33, fig. 30-33. 

 This is a shell probably well-known among European conchologists, 

 but there are some characters which do not agree with the above des- 

 cription. They are in good condition, appearing remarkably fresh 

 for fossils, more or less translucent, and in most the epiconch is pre- 

 served. The surface is rather finely striate, but not acutely ribbed. 

 There is also no trace of a difference in coloration of the apertural 

 part and the rest of the shell ; this would, of course, be of little 

 importance if the shells are weathered and opaque, but in the state 

 of preservation they present, it is significant. The whole shell is 

 equally colorless, and must have been glassy transparent when fresh. 

 There is also no trace of a lip. The size is somewhat larger : greater 

 diam. 3-1-3-3, lesser 2-4-2'6, alt. 17 mm. 



From all this it is evident that the Kroellwitz shell can not be 

 identical with temdlabris as described. It would be hasty to 

 take it for a different species before authentic specimens can be 

 compared. We may eventually propose for the fossil the varietal 

 name saxoniana. The last whorl is very distinctly ascending before 

 it descends to the aperture, as shown in Man. Conch., PI. 33, fig. 33 ; 

 this is also seen from above (fig. 30). Very probably V. temdlabris 

 presents the same character ; apex almost papilliform, which 

 becomes apparent at once if we compare fig. 32. But this, as has 

 been pointed out, appears to be a characteristic, not of a single spe- 

 cies, but of a whole group. From its size, color and the ribbed 

 surface we may conclude that V. temdlabris is related to V. cyelo- 

 phorella. 



It has been noted above that I received another form under the 

 name of V. temdlabris, from Germany. This is of quite a different 

 type (see under V. declivis p. 257). 



