OCR Text |
Show 390 MR. G. F. ANGAS ON NEW SHELLS. [June 1, descending in front, a little contracted behind the aperture ; aperture very oblique, ovate, purplish brown within ; peristome not thickened, widely expanded, the margins approximating, joined by a thin callus ; the right margin slightly flexuous, brown ; the columellar margin white, dilated and reflexed, nearly concealing the perforation. Diam. maj. 10, min. 7, alt. 7 lines. Hab. North-west Australia. This shell differs from the other Australian Helices to which it is allied, in having the outer lip thin and very widely expanded. I have named it after M r . John Forrest, whose recent explorations in Western and Central Australia have added to our knowledge of a hitherto unknown portion of that island continent. 2. HELIX BROUGHAMI, n. sp. (Plate XLV. figs. 4, 4a.) Shell narrowly perforate, conically globose, rather thin, obliquely striated and obscurely minutely granulated, very pale brown above, white below, with three narrow reddish brown bauds-one at the suture, one above, and one below the periphery of the last whorl; spire obtusely and depressedly conical; whorls 5|, slightly convex, the last rounded, descending in front; aperture oblique, circularly lunate ; peristome slightly expanded and reflexed, the margins approximating, the columellar margin almost straight, dilated above, and nearly covering the perforation. Diam. maj. 12, min, 10, alt. 10 lines, Hab. Port Lincoln, South Australia, Allied to H. cassandra, Pfr., but differs in having the spire con^ siderably more elevated, and in the columellar margin being straightened and dilated and reflexed, nearly concealing the perforation. 3.. EVRXTA BRAZIERI, n. sp. (Plate XLV. figs, 5, 5a.) Shell somewhat narrowly fusiform, the spire a little longer than the aperture, white, shining, ornamented with three broad transverse sharply defined bands of irregular descending olive-brown lines here and there passing into blotches, the central band the broadest; apex olive-brown ; whorls 7, slightly convex, longitudinally plicate, the last whorl more narrowly and finely plicate, with the interstices crossed by fine lirae, the plicae ceasing above the central band, faintly transversely sulcate at the base ; aperture narrow; columella slightly gubflexuous and covered with a thin callus; outer lip simple, acute. Long. 6, lat. 1-^ lines, Hab. Dredged off Port-Jackson Heads, in 25 fathoms. A prettily marked shell, quite distinct from any of the other Australian species of this genus hitherto described. DESCRIPTION OF PLATE XLV. Figs. 1, 1 fl. Eury crater a farafanga, p. 389. 2, 2fl. Pupinopsis angasi, p. 389. 3, 3«. Helix forrestiana, p. 389. 4, 4fl. Helix broughami, p. 390. 5, 5«. Euryta brazieri, p. 390. |