?,?,i 1;E00I;i>S op the ArSTI.'AI.IAX MPSEUM. 



Ill ymxng stages tlie species are more diliicult to discriminate, but apart 

 From the proportion of size to number of whorls, 7'. varlegata has the ribs 

 a little closer and higher and the colour inclines to an orange tone. 



The possibilitj' is not excluded that a complete geogiaphical series 

 from tropical Australia may in future link by intermediate gradations the 

 small 7'. van'eiinfa to the large T. ceren'sina. 



A shell from Western Australia figured for this species is rather 

 solid, oval in shape, with an elevated spire. It has four and a half 

 whorls, exclusive of the protoconch and is 92 mm. long, and 72 mm. broad. 

 On a cinnamon ground there are four white bands carrying widely spaced 

 chocolate spots. Two immature shells from the Irwin River mouth, 

 Western Australia, have similar colouring. But another specimen from 

 Geraldton, in the same State, is painted as in Kiener's figure. 



Lor. — The type locality is Shark Bay, Western Australia. 



T(»\NA COSTATA, Metl/a'. 



DnJliDii costatinii, Menke, Syuop. Meth. Moll. [1828, ^"c^e von Martens] ; ed. 

 1830, p. 63, for Martini, iii., pi. cxviii., tig. 1082. 



Dolinm ('Oi^tntnm, Deshayes (anew). An. s. vert., 2nd. ed., x., 1S44, p. 144 

 for Kiener, Coq. Viv., pi. iv., fig. 6. Id., Reeve, Conch. Icon., v., 

 1849, pi. v., fig. 8. Id., Kuster, Conch. Cab., 1857, p. 61, pi. Ivi., 

 fig. 3, pi. Ivii., ti^. 3. Id., Martens in Mobius, Faun. Mauritius, 1880, 

 p. 264. Id., Jack and Etheiidge, Geol. and Palaeont. of Queensland 

 and New Guinea, 1892, p. 694. hi, Pilsbry, Cat. Marine Moll. 

 Japan, 1895, p. 171. Id., Smith, Faun. Maldive Laccadive, 1904, 

 p. 611. /(/., Schepman, Siboga Kxped., Prosobranchia, 1909, p. 125. 

 Id., Odhner, K. Sven. Vet. Akad., vol. Iii , 1917, j). 11. 



T(nnia mstutK, Shii'ley, Proc. Roy. Soc. Queensland, xxii., l9ll, [). 98. 



Dollinn Jiiiesidcidniti, Hanley, Proc. Zool. Soc, 1859, p. 489. Id., Hotli, 

 North Queensland Fthnography, Bull., iii , 1901, p. 18. 



Lor. — I'orres Strait (Shirley) ; Annam River mouth and Green 

 Island (Hedley) ; Cape Grafton, Queensland (Roth); Broome, Western 

 Australia (Mjoberg). 



ToNNA rARvrr-A, Tapparove (\niofn'. 



Ifoliiini jiiiihriiiliiiii, Bra/ier, Pi'oc. iiinn. Soc. N.S.Wales, i., 1877, p. 235. 



Doliiiiii j'niihriiiin III \nv. jnirvuJ iiiu, Tapparone Canefi-i, Bull. Soc. Zool. 

 Fi-ance, 1878, p. 257, pi. vi., fig. 4. 



TniniK j'lDihriatd, Shirley, Proc. Roy. Soc. Queensland, x.xiii., l!»ll, p. 9S 

 (not Doliwii Jimbriatnm , Sowerby, Genera Rec. Foss. Shells, ii., 1827, 

 pi. ccxlii., fig. 2). 



//()(•. — Murray Island, Queensland (Shirley). 



