*Ji BRAZIER : NOTES ON AUSTRALASIAN MOLLUSCA. 



Hydrobia Brazieri E. A. ^vci\\h=Amnicola positura Petterd. 

 — South Grafton, Clarence River, New South Wales. Found 

 in a freshwater stream on plants and wood with Tatei rnfi- 

 labris A. Adams. This species was first described by Mr. 

 E. A. Smith in the Linnean Society's Journal, London, 

 Vol. XVI. p. 269, pi. 7, fig. 21, read April 21st, 1881, 

 published April 6th, 1882, and in 1884 Mr. Petterd re- 

 described it in the. Journal of Co nchology, No. 5, Vol. IV. p. 

 159, from Richmond River, N.S.W. I have it from Lis- 

 more, Richmond River, and a large number of specimens 

 from the late Mr. Geoffrey Neville, who collected them in 

 small water-holes about Brisbane, Queensland, when on a 

 visit to that place for the benefit of his health. In October, 

 1871, I sent a number of specimens to Monsieur H. Crosse, 

 Paris, but I never heard what they were. Later on I sent 

 it to Mr. Tryon and he supposed it to be one of Frauen- 

 feld's species, a view that I did not hold with. At the time 

 I collected the specimens I now send the Society I named 

 it in MS. Anmicola carinata. 



Tatea X'Wf\\dikix\%'=DiaIa rufilabris h.. h.d.z.ms.= Hydrobia rufi- 

 labris E. A. '^m\\h-=^Bythinia huonensis Tenison- Woods 

 =Bithynia huonensis Petterd. — South Grafton, Clarence 

 River, N.S.W, Found in a freshwater creek or stream. 

 This species was first described by Mr. A. Adams in the 

 Ann. and Mag. Nat. Hist.., 1862, p. 298, as Si Diala, from 

 dead and worn specimens. The Rev. Tenison- Woods 

 described it as Bythinia huonensis in the Proc. Royal 

 Society of Tasmania, 1875, P- 7^) ^.nd in 1878 erected it 

 into a new genus as Tatea. The species has a wide range. 

 I first found it in brackish water above the dam at Cooks 

 River, Ncav South Wales, in 1864, then again at Grafton, 

 Clarence River, in a freshwater stream ; it has also been 

 found in Tasmania by the Rev. Tenison-^Voods, Lieut. C. 

 E. Beddome, and W. F. Petterd ; Melbourne, Victoria, by 

 Tenison-Woods, Petterd, and Kershaw. 



J.C, yx., Apr., 1889. 



