142 Gatliff and Gabriel : 



1916. Cypraea hesitata, Ire. P. Mai. Soc. Lond., v. XII.^ 



p. 93. 

 1918. Cvpraea armenaiaca, Hed., not of Verco. J.R.S.^ 

 N.S.W., V. LI., for 1917, p. 70, No. 709. 



Mr. Iredale loc. cit. proves that the name of C. umbilicata is 

 pre-occupied by Dillwyn. As a new name had to be found for 

 C. iimhilicata, Sowb., the varietal name alba. Cox, P.L.S., N.S.W.,. 

 vol. IV., 1879, is entitled to become the species name, and that 

 of C. hesitata may be substituted as a varietal name. 



Sir Joseph Verco loc. cit. fully gave the history of this species, 

 and also named, what he thought might be a variety only, a shell 

 with apricot colouration, as Cypraea umbilicata, Sowb., var. 

 armeniaca. The description is full, and the figure excellent. 

 Upon comparison with Tasmanian forms of C umbilicata, Sowb. 

 he remarks : " Mine dififers in shape, being more globular, higher,, 

 and wider, not only relatively, but absolutely. . . . We will 

 hope other specimens may be secured which will determine its 

 right to be called a good species." 



Of the specimens we have seen, including those in the Aus- 

 tralian Museum, Sydney, none could be regarded as intergrading 

 with C. umbilicata, Sowb., of which we have specimens from 

 Tasmania, also dredged off Cape Everard (living), and Lakes 

 Entrance, Victoria, and we have seen many others. 



We therefore establish Cypraea armeniaca, Verco, as a species. 



Genus Natica, Scopoli 1777. 

 Natica schoutanica. May. 



1912. Natica schoutanica, May. P.R.S., Tas., p. 45, pL 

 2, f. 3. 

 Hab. — Taken off cable to Tasmania, Bass Strait. 

 Obs. — Size of type : " Diameter, major 5.5, minor 4.5, height 

 5 mm." " Yellowish white, irregularly netted with broken zigzag 

 lines of chestnut." 



Genus Pol In Ices, Montfort 1810. 



This comprises species listed as Natica plumbea, Lk. ; N. 

 didyma, Ch. ; N. conica, Lk. ; N. incei, Phil. ; and N. beddomei^ 

 Johnston. 



Genus Sinum, Bolten 1798, replaces Sigaretus, Lamarck 1799. 

 Genus Marsenlopsis, Bergh, replaces Lamellaria, Montagu, 



