218 GYLIAUCHEN. 



minutely striate spirally, not excavated below the periphery, 

 and has a smaller umbilicus. A certain latitude of variation 

 is to be expected in the secondary denticles in all Pupillidas, 

 but fruhstorferi has more than its immediate allies. 



The inner half of the long angular lamella is quite low. 

 Coluniellar lamella and upper and lower palatals are sub- 

 equal, all long and straightly entering. In the specimen fig- 

 ured the secondary or minor teeth are as follows: a rather 

 well-developed infraparietal ; small supra- and subcolurnel- 

 lars ; two small folds in the base, one interpalatal, and several 

 minute ones in the sinulus. All of the lamellae and plicae are 

 microscopically spiniferous. 



The color is prussian red or somewhat lighter, being darker 

 than the related species. Apex is minutely granulous, the 

 subsequent whorls delicately striate spirally, the spiral 

 threads much finer and closer than in everetti. Alt. 2.1, diaru. 

 2.5 mm. 



7. GYLIAUCHEN EVERETTI (E. A. Smith). PI. 37, figs. 4-6, 10. 



Shell minute, openly, perspectively umbilicate, brown, 

 minutely decussated with growth and spiral strias ; spire 

 small, elevated. Whorls 4, convex, separated by a deep suture, 

 the apical large, last whorl concave about the middle, obtusely 

 angular above and around the umbilicus, free and ascending 

 in front, pitted towards the aperture. Aperture tube-like, 

 armed with several teeth within ; peristome pale reddish, thin, 

 expanded, triangular-rounded. Diam. maj. 3, inin. 2, alt. l 1 /^ 

 mm., aperture 1 mm. wide (Smith). 



Kalao Island, between Celebes and Flores (A. Everett). 



Hypselostoma everetti SM., Ann. and Mag. N. H. (6), xviii, 

 August, 1896, p. 148, pi. 10, f. 9-9&. 



"In a natural condition all the shells are covered more or 

 less with agglutinated earth, which produces a rough irreg- 

 ular appearance. There are five principal converging teeth 

 within the aperture, and a few smaller intermediate ones, 

 none reaching to the edge of the labrum. 



: 'A species from Java in the British Museum labeled H. 

 Fnthstorfcr Bttgr. somewhat resembles the present form ; it 



