700 STUDIES ON AUSTRALIAN MOLLUSCA, xiii., 



Clanculus aloysii Tenison-Woods. 



Clancuhis aloysii Ten. -Woods, Proc. Ro}'. Soc. Tasm., 1875 

 (1876), p. 155; Id., Hardy, op. cit., 1915, p.62; Id, Pilsbiy, Man. 

 Conch., xi., 1889, p.59, PI. xiv., figs.20-23; Id., Tate 6l May, 

 these Proceedings, xxvi., 1901, p.400; Id., Pi"itchard & Gatliflf", 

 Proc. Roy. Soc. Vict., xiv., 1902, p. 121; Id., Chapman & Gabriel, 

 Proc. Roy. Soc. Vict., xxvi., 1914, p. 316. 



This 'I'asmanian species is now found to extend north into 

 New South Wales. I dredged specimens in 7-10 fathoms near 

 Montagu Island. Also unrecorded for the State is Clanculus 

 plebeiiis Philippi, which I have collected in Twofold Bay. 



MoNODONTA OBTUSA Dillwyn. 

 (Plate xlvii., fig. 12.) 



Trochus ohtusus Dillwyn, Descrip. Cat., ii., 1817, p. 809, for 

 Chemnitz, Conch. Cab., xi., 1795, p.l67, P1.196, figs.1894, 1895. 

 Monodonta zebra Menke, Verch. Conch. Malsb., 1829, p. 17; Id, 

 Morch, Malak. Blatt., xviii., 1871, p. 125; Id., Maplestone, Month. 

 Micros. Journ., viii., 1872, p.50, PI. xxvi., fig. 2; /(/., Troschel, 

 Gebiss Schnecken, ii., 1879, p,232, PI. xxiii., fig.7; Id., Smith, 

 Zool. Coll. Alert, 1884, p.74; Id., Pilsbry, Man. Conch., xi., 1889, 

 p.91,P].20,fig.20; Id., Shirley, Proc. Roy. Soc. Q'land, xxiii., 1911, 

 p. 96. Trochus tceniatus Quoy & Gaimard, Zool. Astrolabe, iii., 

 1834, p.249, P1.63, figs.15-17; Id., Angas, Proc. Zool Soc, 1867, 

 p.216; Id., Ten.-Woods, Proc. Roy. Soc. Tasm., 1877, p.43; Id., 

 Ten.-Woods, Proc. Roy. Soc. ^\ S. Wales, 1888, p.ll9. Trocho- 

 cochlea multicarinata Chenu, Man. Conch., i., 1859, p.360, fig. 

 2676; Id., Angas, Proc. Zool. Soc, 1867, p.216. Labia porcatus 

 A. Adams, Proc Zool. Soc, 1851 (1853), p. 177; Id., A. Adams, 

 Ann. Mag. Nat. Hist.>(2), xii., 1853, p.207: Id., Angas, Proc 

 Zool. Soc, 1867, p.216. Troclms extenuatus Fischer, Coq. Viv., 

 1878, p.330, P1.103, fig.l. 



The above summary of literature shows how superfluous names 

 may accumulate round a well known species. As one of the most 

 common and conspicuous shells on the Sydney beach, this was 

 naturally among the first to be sent to Europe, and described. 

 Yet, for more than a century, the coloured figures given by 



