250 FAUXULUS. 



said of any basal plica; if present it was overlooked, only 8 

 lamellae and plicae being mentioned. It appears likely that a 

 basal plica is present, but until the type can be found, or full 

 collections made at the type locality, the question remains 

 undecided. 



F. g. novenarius n. subsp. PI. 40, figs. 1, 2. 



This form resembles F. glanvilliana and F. g. darglensis in 

 having the parietal callous spread far upward on the face of 

 the penult whorl. It is imperforate. The angular lamella is 

 heavy and arcuate, concave towards the left. The inner end 

 of the parietal lamella curves towards the columella. The 

 columellar lamella has its edge bent conspicuously downwards. 

 The supra- and subcolumellar lamellae are well developed and 

 very long. The suprapalatal plica, defining the sinulus, is 

 pliciform but shorter than the upper palatal. Lower palatal 

 plica very long, its edge flattened and bent upward, the inner 

 end descending a little. Basal plica is interrupted or weakens 

 inwardly. Color nearly white or brown, slightly transparent. 



Length 3.9, diam. 2.1 mm.; 8 whorls (fig. 1). 



Length 4.1, diam. 2 mm. ; 8*4 whorls. 



South Africa: Grahamstown. Type no. 114989 A. N. S. P., 

 received from Sowerby & Fulton. 



F. g. darglensis has an additional basal plica, also an in- 

 cipient fold above the suprapalatal, in all 10 or 11 plicae and 

 lamellae ; the present form has 9 in all. Whether novenarius 

 is identical with F. glanvilliana depends upon whether that 

 proves to have a basal plica. 



F. g. darglensis (Burnup). PL 40, fig. 6. 



Shell small, conic-oval, rimate and very narrowly perforate, 

 thin, shining, greyish horn-colored, translucent, sinistral. 

 Spire ovately conic; apex obtuse and mammillated. Whorls 

 7%, slightly convex, gradually increasing, with suture dis- 

 tinct but not deep, obliquely sculptured with close, sharply- 

 cut, arched oblique striae, except the first 1%, which are 

 smooth, the last more convex, rounded below, much con- 

 stricted towards the peristome and impressed towards the rima 

 and small perforation, the long inrunning peristomatal pro- 



