51 



anotlier, belong to Limncea rather than to AmpJiipeplea. Per- 

 sonal examination of six species inhabiting the southern part 

 of Australia has elicited the fact that one only, A. papyracea, 

 mihi, has the mantle peculiarities of A7?2pJiipe2)lea (see Trans, 

 of this Soc, vol. iv., p. 140, and Proc. Lin. vSoc, jN'.S.W., toL 

 vi., p. 553). 



Limnaea Phillipsi, A. Adams And Angas. 



Bef.—Froc. ZooL Soc, 1863, p. 416; Beeve, Icon. Con., t. G, 

 f . 41, 1872. 



Hah. — Arnheim Land (Stuart's Expedition). 



Limnaea vinosa, Adams and Angas. 

 Bef.—Proc. Zool. Soc, 1863, p. 415 ; Beeve, oj). cit., t. 6, f. 37. 

 Hah. — Mary Eiver, Arnheim Land (Stuart's Exped.). 



Limnaea Angasi, Sowerby. 

 Bef.— Beeves Icon. Conch., t. 2, f. 11, 1872. 

 Hah. — Port Darwin. 



Gexus Bl'lixus. 

 The sinistral spiral pond-snails of Australia have been 

 placed (incorrectly so, 1 believe) in the genus Bliysa. The 

 thick periostracum of most of them, which in many is pro- 

 longed into cilia or bristles, is incompatible with a largeiy- 

 reflexed mantle. I have not examined all the Australian 

 so-called Bhysce, but in no instance have 1 found those distinc- 

 tions which characterise Bliysa as separable from Bidmus. The 

 mantle margin is neither expanded nor digitate; in A. 

 tenuistriata, however, it has three small serratures on the 

 columella side. Of the Northern Territory species, I have 

 seen alive only B. concinnus and B. Beevei, which present the 

 characters proper to -S2^7i^zM5. According to Binney, '"Fresh- 

 water Shells of X. America, 1865," Adanson's name, Bulinus, 

 has priority over Ap)Jexa, Fleming, and is accompanied by a 

 careful description and excellent figure. 



Bulinus Hainesii, Tryon. 



Bef. — American Journ. Conch., vol. ii, t. 2, f. 9, p. 9, 1866 

 (Isidora). 



Si/n. — Phvsa latilabiata, Soiverhy, Beeve' s Icon. Conch., t. 5, 

 f . 33, 1873. ' 



Hah. — ^A^ictoria River. 



Bulinus ferrugineus, Adams and Angas. 

 Bef.—Bro. Zool. Soc, p. 416, 1863; Beeve, Icon. Conch., t. 4, 

 f. 25(Physa). 



Hah. — Mary Eiver, Arnheim Land (Stuart Exped.). 



