195 



1845 Trochus Lehmanni, Menke, Catlow and Reeve, 



Conchologists' Nomenclator, p. 217, No. 75. 



* 1849 Trochus pictus, Phillippi in Conch. Cab., 2nd edition, 



p. 139, No. 166, pi. 23, fig. 18-19 (non Trochus pictus, 



Wood). 



1851 Thalotia Lehmanni, A. Adams, Proc. Zool. Soc, p. 



172, No. 4. 

 1854 Thalotia Lehmanni, H. and A. Adams, Genera of 



Recent Mollusca, vol. 1, p. 420. 

 1859 Qibbula (Forslealia) elegans, Chenu, Manuel de Con- 



chyliologie, tome 1, p. 362, fig. 2,690. 

 1865 Thalotia picta, Angas, Molluscan Fauna of South 

 Australia. Proc. Zool. Soc, p. 179, No. 150 J(non 

 Trochus pictus, Wood). 

 1873 Thalotia Lehmanni, Paetel, Catalog der Conch-Samm- 



hmg, p. 73. 

 1877 Thalotia picta, Tenison- Woods, Papers and Proc. 

 Royal Soc, Tasmania, p. 41 (non Trochus pictus, 

 Wood). 

 1880 Trochus Lesueuri, Fischer in Kiener, Coq. Vivantes, 



pp. 129-420. 

 Shell imperforate, thick-conoidal or conical, acute at the 

 apex, ornamented with elegant flames, alternately brown and 

 white ; whorls 7, a little convex, swollen and carinated at the 

 ower part ; the first 2 whorls, nearly always decorticated, are 

 pink or reddish; the others have numerous spiral striae 

 (about 10 on the penultimate whorl), articulated or spotted 

 with red, and brown or white longitudinal flames ; last whorl 

 flattened at the upper part, swollen in the middle and 

 sometimes subcarinated ; base ornamented with numerous 

 concentric liaros ; aperture oval; peristome thickened, bordered 

 with red or pink at the upper part ; the red colouring also 

 extends outside of the columellar margin; interior of the 

 aperture Urate, nacreous. Height 16, width 12 millimetres. 

 Others measure in height 12, and width 9 millimetres. 



This species was described first by Lamarck as Phasianella 

 elegans. Kiener, in his Coquilles Vivantes placed it in the 

 genus Trochus under the name of Trochus elegans, the name of 

 elegans already being used by Gmelin for a species from New 

 Zealand, and which is a synonym of Trochuspiirpuratus,Ma,i-tyn. 

 Lamarck's species is also the Trochus Lehmanni, Menke ; 

 also the Trochus pictus, Phillippi-non-Wood. My late 

 lamented friend, Mr. Angas and the Rev. Tenison- 

 Woods quotes it as Thalotia picta, Wood. The Trochus 

 (Thalotia) pictus of Wood is the Trochus conicus, Gray. 



* The title page of the Genus Trochus, with the date of publication in the Con- 

 chylien Cabinet, is wanting in the volume contained in the Australian Museum 

 Library. In an old book catalogue and the Zeitschrift fur Malakazoologie, I hate 

 traced the publication of the Monograph, by Dr. Philippi, from 1840, 1855. 



