136 Gatliff and Gabriel : 



loc. cit., and is the same as that listed by Prit. and Gat. as M. 

 tasmanica, T.-Wds. Similar specimens have been sent to us from 

 South Australia as M. rufocincta, A. Ad., but that species is 

 described as impressed with transverse lines between the ribs, 

 a character lacking in the shells sent, as also in M. tatei. 

 Tenison- Woods loc. cit. says his species is " Small banded orange 

 and dark brown; translucent with faint ribs on upper whorls. 

 Long. 10, lat. 4 mm. Rather common. Long Bay and Black- 

 man's Bay, and S.E.A." Upon examination of a very numerous 

 series we find considerable variation, and that the ribs usually 

 extend to the upper portion of the body-whorl, also that the colour 

 is often blackish-brown bands on a white ground. 



Under the genus Mitra will also be placed the shells listed as 

 Turricula scalariformis, Ten.- Woods; and Turris cinnamomea, 

 A. Adams. 



Genus Margin el I a, Lamarck 1799. 

 Marginella mustelina, Angas. 



1871. Hyalina (Volvarina) mustelina, Ang. P.Z.S., 



Lond., p. 14, pi. 1, f. 5. 

 1877. Marginella Stanislas, Ten.-Wds. P.R.S. Tas. for 



1876, p. 133. 



1899. Marginella alhida, Tate. Prit. and Gat., these 



Proc, V. XL, for 1898, p. 192. 

 1910. Marginella Stanislas, Ten.-Wds. Gat. and Gab. 

 Id. V. XXIIL, p. 88. 



Angas described the species as brown banded. Ten.-Woods 

 states of M. Stanislas : " Pellucid white, or marked with four 

 zones of variously interrupted brown spots." Tate's species, M. 

 alhida, is white. The white variety may therefore be called M, 

 mustelina, Ang. var. Stanislas, Ten.-Woods, and Tate's name 

 M, alhida becomes a synonym. 



Marginella cratericula, Tate and May. 



1900. Marginella cratericiila, Tate and May. J.R.S.S.A., 



v. XXIV., p. 91. 



1901. Marginella cratericula, J. and M. P.L.S. N.S.W., 



V. XXVI., p. 363, pi. 26, f. 74. 

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

 Ohs. — Size of type: Length 2.3, breadth 1.5 mm. 



