GASTROCOPTA, AUSTRALIA. 163 



ened and expanded, smooth and white, margins joined by a 

 thick callus continuous with the peristome and extending over 

 the body- whorl. Length 1, breadth i/ 2 lin." (Brazier). 



N.-E. Australia: Fitzroy Island; also No. 8 Island, Clare- 

 mont group (Brazier). No. 3, Barnard Islands; Cape York 

 (Brazier, 1877) . Also Bet, Sue, Nepean, Dungeness and War- 

 rior Islands, Torres Strait (Brazier, for P. macleayi). 



Pupa, (Vertigo) macdonnelli BRAZ., Trans. Roy. Soc. N. S. 

 Wales, 1874, p. 30 (not seen) ; Proc. Zool. Soc. Lond., 1874, 

 p. 669, pi. 83, f . 22, 23 ; Proc. Linn. Soc. N. S. W., i, 1877, p. 

 128. Vertigo macdonelli Brazier, Hedley, Proc. Roy. Soc. 

 Queensland, v, 1888, p. 65. 



Pupa (Vertigo) macleayi BRAZ., Proc. Linn. Soc. N. S. 

 Wales, i, 1877, pp. 110, 128. Bifidaria macleayi Brazier, 

 HEDLEY, Proc. Linn. Soc. N. S. W., xxvii, 1902, p. 19, pi. 3, 

 f. 39 (Barnard Is. No. iii). 



Brazier's description is not clear, as he did not recognize 

 the angular tooth as distinct from the parietal, mentioning it 

 as a "thick rounded callous," and he neglected to mention 

 the basal fold. His figure shows angular, parietal and colu- 

 mellar lamellae, upper and lower palatal and basal plicae. 



No. 8 Island, Claremont group, may be considered type 

 locality. Specimens from there are figured, pi. 27, figs. 11, 12. 

 The angular and parietal lamellae are well united, forming an 

 anteriorly biramose tooth. Inwardly it bends towards the 

 columella. The infraparietal is well-developed, tubercular, a 

 little lengthened inwardly. 'The columellar lamella is cres- 

 centic, the outer end horizontal, the inner turning downward. 

 The lower palatal plica is about twice as long as the upper, the 

 two standing nearly parallel in some, or converging a little 

 inwardly in other individuals. Basal fold is well developed 

 and short, exactly basal in position. 



Length 2.3, diam. 1.15 mm. (subconic form). 



Length 2.2, diam. 1.05 mm. (subcylindric typical form). 



This species differs from others of eastern and northeastern 

 Australia by having the inner end of the columellar lamella 

 curved downward; other similar species of the region having 

 a straight, horizontally entering columellar lamella. 



