202 



interstices ; last whorl carinated, scarcely convex at the base, 

 ornamented with distinct brownish radiating flexuous mark- 

 ings,the granulous lira concentric to the columellar axis, about 

 ten in number, more granulous near the centre, interstices 

 pinkish ; aperture rhomboidal ; umbilical region depressed. 

 Alt., 33 ; breadth, 30 ; least breadth, 29 millimetres. Paetel 

 in his Catalogue erroneously attributes this species to 

 Dunker. 



Hob. — King's Island, Bass Strait (Pcron and Leseuref) ; 

 Encounter and G-uichen Bays, South Australia {G. F. 

 Angas) ; New Holland {Hombron and Jacquinot) ; Australian 

 Sea {Paetel) ; Tasmania {Paetel) ; Port Western, Victoria 

 (/. H. Gatliff) ; Tasmania (W. F. Petterd). 



1843 



7. Trochus (Clanculus) Dunkeki, Koch, 

 Trochus (Monodonta) Dunlceri, Koch, 



sp- 

 in Philippi. 

 Abbild und Besch neuer Conch., vol. 1, heft 3, p. 6, 

 pi. 2, fig. 5, Trochus. 

 1849 Trochus Dunlceri, Koch, Phillippi Conch. Cab., ed. 2, 



p. 237, No. 300, pi. 36, fig. 5. 

 1851 Monodonta Dunlceri, Koch; A. Adams, Proc. Zool. 

 Soc, p. 174, No. 10. 



1854 Euchelus Dunlceri, H. and A. Adams, Genera of 



Eecent Mollusca, vol. 1, p. 419. 

 1865 Clanculus ruhens, A. Adams; Angas, Molluscan 



Fauna of South Australia, Proc. Zool. Soc, p. 178, 



No. 144. 

 1873 Clanculus Dunlceri, Paetel, Catalog der Conchylien- 



Sammlung, p. 73. 

 1877 Clanculus rubens, A. Adams ; Tenison-Woods Papers 



and Proc. Eoyal Soc, Tasmania, p. 40. 



1880 Trochus Dunkeri, Fischer in Kiener, Coq. Vivantes, p. 

 301, No. 171, pi. 96, fig. 2. 



Shell imperforate, having a little hollow or depression at 

 the place of the umbilicus, orbicularly conoid, sub-depressed, 

 thick, whorls 5 ; the first whitish often eroded ; the last 

 brownish or reddish, obliquely striated and ornamented with 

 transverse or spiral granulose lirai, 3 on the penultimate 

 whorl, last angular a little convex, ornamented with 4 

 granulus beaded lira?, separated by well-marked interstices ; 

 base with 5-6 concentric granose lirss ; aperture oblique, 

 rhomboidal, with plications far in the interior ; peristome 

 thickened, plicated, denticulated at the upper part ; columellar 

 oblique, ending with an acute and narrow tooth ; columellar 

 callosity scarcely developed, plicated. Height, 8 ; width, 11 

 millimetres. 



