﻿bartsch] new species of amphidromus 293 



purple within, outer lip thin, showing" the external color markings 

 by transmitted light, and having a quite strong, moderately ex- 

 panded, and reflected rose-purple colored peristome; columella 

 slightly curved and twisted, rose-purple, which is also the color of 

 the umbilical region. ( )n the parietal wall within the aperture a 

 moderately broad yellow spiral hand may be seen marking the termi- 

 nation of the axial yellow stripes on the penultimate whorl ; in the 

 type and six of the nine specimens this does not extend to the outer 

 lip ; in two of them, however, it extends somewhat beyond it. The 

 type measures: alt. 32 mm., lat. 16.2 mm.; aperture alt. 15.5 mm., 

 lat. 8.8 mm. 



The deviations from the type consist chiefly in the number and size 

 of the alternating axial color stripes and the degree of branching of 

 these stripes on the posterior half between the sutures of the third 

 whorl. The width of the yellow spiral band limiting the purple 

 umbilical area is also somewhat variable ; its greatest development 

 appears to be on those specimens having the brightest and broadest 

 yellow axial stripes. On two of the specimens the median spiral 

 yellow zone between the sutures extends over one additional whorl, 

 i. e., over the first three post-nuclear whorls. One specimen shows 

 two very irregular and variously interrupted sooty spiral bands on 

 the last whorl — one near the summit, the other near the suture, as 

 shown in the middle figure of the top line, plate xlvi. The left 

 figure on the bottom line represents the type. 



