486 
mriahilis appears to have a wide geographical distribution, for it is one of the she s 
obtained by Mr. Chandler * in the neighbourhood of the Peake, Central Australia. 
Loc. Wollumbilla {The late Rev. W. £. Clarice) ; Maranoa Elver, at Mitchel , 
and Blyth Creek, near Blythsdale Station ((?. Sweet — Colin. Sweet, Melbourne). 
Nattca oekatissima, Moore, Pi. 25, fig. 11. 
Natica ornatissima, Moore, Quart. Journ. Geol. Soo., 1870, p. 257, t. 10, f. 16. 
Sp. Char. Shell small, spire depressed ; whorls convex, the last very rounded and 
globose ; aperture large and circular. (Moore.) 
Shell-structure smooth, with broad bands of growth at intervals, within or on the 
surface of which are finer striations. The shell still retains some of its original colour. 
(Moore.) 
Loc. Wollumbilla (The late Rev. TV. B. Clarice), 
Natica Jackii, sp. nov., PI. 21, fig. 22. 
Sp. Char. Shell ovate, sub-globose, of about four whorls ; spire short ; upper 
volutions very short, convex, separated by a moderately marked suture ; mouth ovate, 
nearly straight along the inner lip ; the latter is but little reflected or thickened , 
umbilicus moderately large ; surface of the body-whorl bearing strong, sub-imbricatiiig, 
oblique, transverse rugae (which are also faintly perceptible on the penultimate whorl), 
crossed on the lower portion of the whorl by oppositely directed, oblique, semi-spiral 
rugae of different lengths, wider apart than the transverse ridges, and to some extent 
effacing them, and producing a more or less V-shaped ornament. 
Obs. This peculiar and handsomely sculptured little shell may perhaps be 
referable to Vanilcoro (Narica, Eecluz), or even Vanilcoropsis, Meek, but I am not yet 
satisfied how far the sculpture is persistent. The spiral lines start from the inner lip, 
passing obliquely round the whorl to the outer lip, but during their course are faulted 
downwards, as the width of the whorl increases. 
I have been unable to find any described species of Natica bearing similar 
sculpture, even with the assistance of my former Colleague, Mr. Edgar A. Smith. A 
recent form, Natica cancellata, Lamk., from the Isle of Nevis, is wholly cancellated, and 
so is a fossil Neritina, described by D’Orbigny,t from the Cretaceous rocks of South 
America, in which the spiral striae are confined to a zone all round the body-whorl. The 
absence of a callosity on the inner lip, irrespective of other features, separates Natica 
JaclciiJ.mm. both the foregoing. 
In this species the inner lip can hardly be said to be reflected, and there existed a 
well-marked and elongated umbilical opening. 
Loc. Cloncurry Eoad, at Julia Creek (R. L. Jack). 
Eamily— STEOMBID..®. 
Oenus—ANCHURA, Conrad, 1860. 
(Journ. Acad. Nat. Sci. Fhiladel., 1800, iv., p. 284.) 
Akchuka? Wilkinsoni, sp. nov., PI. 31, figs. 4 and 5. 
(Compare Alaria or Anchura, sp., Hudleston, Geol. Mag., 1890, vii. (3), iJ. 242, t. 9, f. 2.) 
Sp. Char. Shell (wdthout the expanded lip) fusiform, of six or more whorls, 
angulated in the middle line, the last unequally biaugular ; last whorl abruptly con- 
tracted into the base of the beak below ; aperture (?) rhombic oval ; the median angu^ 
* Trans. R. Soo. S, Australia for 1880-81 [1882], iv., p. 149. 
t N. divaricafa, D’Umont d’Urville’s Voy. Pole Sud. G4ologie, 1847, AtlaB, t. 7, f. 43 and 44. 
