HELIX-HADRA. 169 



Hcurtisiana PFR. P. Z. S. 1863, p. 528 ; Monogr. Hel. Viv. v, 

 p. 343. Cox, Monogr. Austr. L. Sh. p. 58, t. 20, f. 9, 9a. H. bala 

 BRAZIER Proc. Linn. Soc. N. S. Wales, iii, p. 78, t. 8, f. 4, 1878. 

 HEDLEY, Proc. Eoy. Soc. Queensl. 1889, p. 101. 



According to Hedley (7. c.) the H. bala of Brazier is synonymous. 

 The locality given by Pfeiffer is said to be erroneous. The descrip- 

 tion of H. bala is as follows : 



H. BALA Brazier. PI. 47, fig. 94. 



Shell umbilicated, conoidly semi-globose, moderately solid, nearly 

 smooth, bright chestnut ; spire conoidly-convex, above light-brown ; 

 apex obtuse, suture slightly crenulated ; whorls 5, slowly increasing, 

 the last large, roundly convex, descending in front ; flattish at the 

 base, aperture nearly diagonal, roundly-lunate; peristome moder- 

 ately thickened and reflected, interior flesh-tinged ; margins approx- 

 imating; columellar margin broadly expanded covering one-half of 

 the umbilicus and joined by a thin callus to the upper margin. 

 (Brazier.) Alt. 11, greater diam. 17, lesser 13J lines. 



Castle Hill, near Townsville, Cleveland Bay, Queensland; also 

 Magnetic Island. 



H. AUREEDENSIS Brazier. Lnfigured. 



Shell umbilicated, depressedly globose, rather solid, very finely 

 obliquely striated, and, under the lens finely granulated, dark chest- 

 nut ; suture ornamented with a fine white thread, and also a broad 

 dirty white undefined zone round the umbilicus; spire broadly 

 conoid, obtuse; whorls 6 to 6J, convex, the five upper whorls of a 

 reddish chestnut, the last increasing in size, rounded and deflected 

 in front ; base convex ; aperture diagonally ovately lunate, brownish 

 white within ; peristome straight, ivory-white, slightly thickened 

 .and reflected ; margins approximating, right margin expanded, col- 

 umellar margin arcuate and reflexed, concealing nearly half of the 

 umbilicus, which is deep. (Brazier.) 



Alt. 1, greater diam. H, lesser H inch. 



Near Port Denison, Australia. 



H. aureedensis BRAZIER, P. Z. S. Lond. 1871, p. 640. HEDLEY, 

 Proc. Roy. Soc. Queensl. 1889, p. 102. 



Differs from H. incei in having a white sutural thread, but is pro- 

 bably to be considered a variety of that species. 



