MOLLUSCA FROM ALPINE ZONE OF MOUNT KOSCIUSKO — HEDLEY. 103 



lines are evanescent. The penultimate whorl has 61 costa;. The 

 first whorl is spirally grooved. Aperture oblique, lunate ovate, 

 lip deeply incurved at the suture, rising above the vertex, arched 

 above and below, not thickened and scarcely reflected at the 

 columella. Inner lip overlaid by an opaque granular callus 

 burying in its advance the costaj in its path. 



Diameters, major 3^, minor 2|, height IJ m.m. 



Loc. — Wilson's Valley, at an altitude of 4,500 ft., Mt. Kosciusko, 

 N.S.W. (Helms). 



Type — Australian Museum, C. 67. 



This species nearly approaches £J. antialba, Beddome, from 

 Tasmania, from which its narrow umbilicus and shallow spire 

 readily distinguish it. Other species compared by their respective 

 authors to JS. anlialha are E. siibantialba, Suter, from New 

 Zealand, and E. (i-inula, Tate, from Central Australia ; besides 

 other cliflerences both are much smaller than that now introduced. 



Flammulina excelsior, n. sjt. 



(Plate XXIII., Figs. 2, 3, and 4). 



Shell large for the group (subgenus Flammulina), turbinate, spire 

 rather elevated, thin, translucent, surface dull, barely perforate, 

 whorls three, rapidly increasing, last flattened above, rounded at the 

 periphery and ventricose on the base. Suture impressed, coloured 

 on a pale ground by angular bi'own flames of irregular pattern, usually 

 most distinct at the suture and fading away both at the periphery 

 and on the penultimate whorl, frequently directed downwards 

 and forwards they cross the growth lines diagonally and breaking 

 up about the periphery produce a mottled pattern. Sculpture, 

 close irregular growth lines commence as coarse wrinkles at the 

 suture and fade into the smooth base, faint spiral scratches are 

 seen under the microscope to cross these ; the earliest whorl 

 exhibits regularly spaced costas crossed by fine spiral strire. 

 Aperture oblique, ovate, lip sharp, the somewhat twisted 

 columella is folded over a minute perforation ; a thin granulated 

 callus is spread over the inner lip and curves around the umbilical 

 region. Diameters, major 9, minor 8, height 6 m.m. 



Loc. — Pretty Point, at an altitude of 5,700 ft., Mt. Kosciusko, 

 N S.W. (Helms). 



Ty2)e. — Australian Museum, C. 71. 



This very fragile shell of a group hitherto unrecorded from 

 Australia seems in shape to be nearest allied to F. cornea, Huttou, 

 from Auckland, New Zealand, from which its size, colour, and 

 perforation distinguish it. In a bottle with Cystopelta, but without 

 locality more precise than " Victoria," Prof. W. Baldwin Spencer 



