164 GASTROCOPTA, AUSTRALIA. 



There is some variation in shape in the lot sent by Mr. Hed- 

 ley, as shown in the figures. The specimens are part of Bra- 

 zier's original lot. 



Pupa maclcayi was described by Brazier as sinistral, but 

 Hedley, who examined the collection, writes: "Of Pupa mac- 

 leayi Brazier, there are lots from Bet, Nepean and Warrior 

 Islands, Torres straits, in the Macleay Museum. These are 

 certainly originals, yet all are dextral. ' ' Specimens sent, from 

 Bet Island, which I would select as type locality, agree so 

 fully with G. macdonnelli that no distinction seems possible. 

 The most obese of three is figured, pi. 27, fig. 9. It measures, 

 length 2.35, diam. above aperture 1.2 mm. It has a small 

 interpalatal plica, but this varies, and is absent in other ex- 

 amples. 



It appears certain that Brazier was mistaken in calling P. 

 tnacleayi sinistral, for near the end of his description he de- 

 scribes the lip as of a dextral shell "the right [margin] 

 slightly angled at the suture, joining the minute tooth above." 

 These terms are wholly applicable to the dextral specimens 

 Before me, and would not fit a sinistral shell. 



The original description follows. 



Pupa (Vertigo) maclcayi. -- "Shell sinistral, perforated, 

 ovately oblong, very thin, shining, white, hyaline, finely stri- 

 ated, crossed with spiral stria?; whorls 5, convexly rounded, 

 two center large and ventricose, two upper small, the last very 

 small, somewhat compressed ; aperture small, squarely oval, 

 longer than broad, having 7 teeth, 3 on the center of the body- 

 whorl, the center one elongated, curved and rounded, small 

 one to the right and left, one long and broad on the inside of 

 the columella, three more situated inside the base, center one 

 deep down opposite the one on the body-whorl ; margins con- 

 tinuous, the right slightly angled at the suture, joining the 

 minute tooth above, peristome thin and reflected, broadly ex- 

 panded over the perforation. Length 1, breadth y 2 line 

 (Brazier). 



Bet, Sue, Nepeau, Dungeness and Warrior Islands, Torres 

 Straits (Brazier). 



99a. G. MACDONNELLI MACRODON ii. subsp. PI. 27, figs. 7, 8, 10. 

 The shell is ovate-conic, rimate, cartridge-buff, composed of 



