FEESHWATEE SHELLS OF AUSTEALIA. 287 



a. Var. pallida. Rooty Hill, near Chatsworth, IN". S. Wales 

 {Brazier). 



h. Var. major. Burnett Eiver, Queensland {Brazier). 



This is a pretty glossy species, of a bright horn-brown colour, 

 and, like P. inflata, characterized by the absence of a twist or 

 fold on the columella. However, it is less inflated than that 

 species, of a different colour, has a longer spire, and the suture 

 is not so deep. I feel much pleasure in naming this interest- 

 ing form after Mr. John Brazier of Sydney, to wliom the British 

 Museum is indebted for a very valuable series of freshwater 

 shells from Australia and some of the Pacific islands, besides 

 many curious marine species from these localities. P. subinflata 

 of Sowerby is very like this species ; but the columella presents 

 a slight twist, and its dimensions are greater. 



82. Physa QUEENSLA.NDICA, u. sp. (Plate VI. fig. 23.) 



Shell small, semitransparent, acuminate above, light horn- 

 colour, not very glossy, somewhat coarsely striated by the lines 

 of growth, and exhibiting at times indications of spiral striae, 

 chiefly at the upper part of the whorls near the suture. Spire 

 acute ; apex small, brown. Whorls 6, narrowly bordered with 

 white, rather convex, pretty regularly increasing ; last long, only 

 a little inflated. Aperture narrow, occupying rather less than 

 three fifths of the entire length, acute above, with a brown stain at 

 the base, sometimes extending parallel with the lip to its junction 

 with, the whorl, and a little thickened. Columellar fold incon- 

 spicuous, narrowly reflexed, whitish. Lip like that of P. Bed- 

 domei. 



Length 12^ millini., greatest diameter 6-i-; aperture 7 long, 

 2|- wide. 



Hah. Dawson River, Queensland {Brazier). 



This species diff'ers from P. Beddomei in being smaller, in 

 having a shorter and more suddenly acute spire and a less pro- 

 nounced columellar twist. The colour is similar, but the black 

 pseudo-epidermis is wanting. 



Tryou's P. acutispira appears to be more " highly polished," 

 without the basal brown mark, and a little longer in the aperture ; 

 still, on comparison, it may eventually prove to be the same as the 

 present species. B.fusiformis, Nelson & Taylor, has a narrower 

 body-whorlj and is sculptured with strongly punctured strife. 



LINN. JOUEN. — ZOOLOGT, VOL. XVI. 20 



