18 BOTIIRIEMBRYON. 



streaked and lineate with opaque white. Alt. 20^, diam. 14^, 

 longest axis of aperture 12^ mill. 



B. GUNNI (Sowerby). PI. 3, figs. 50, 51, 52. 



Shell imperforate, oblong-pyramidal, thin but somewhat solid, 

 opaque white, almost uniform or wtih inconspicuous grayish (or 

 pinkish- or bluish-gray) streaks, the early whorls flesh-colored. 

 Surface lustreless (in the typical form), rather rudely marked with 

 slight growth-wrinkles in places, usually with some stronger wrinkles 

 at irregular intervals. Spire long, highly conic, the apex rather 

 obtuse, If earlier whorls densely and very minutely but shaliowly 

 striolate, the striae waved (pi. 4, fig. 76). Whorls 5 to 5J, but 

 slightly convex, the last oblong. 



Aperture long-ovate, oblique, more or less deeply ochre tinted 

 within; outer lip simple and acute, columella narrowly reflexecl and 

 adnate above. 



Alt. 2G, diam. 13, longest axis of aperture 13, width 7.2 mill. 



Alt. 23, diam. 13, longest axis of aperture 12.5, width 7.5 mill. 



Tasmania: fossil in Yellow Limestone (travertine), probably of 

 Pliocene age, near Hobart Town (Strzelecki ; type locality of B. 

 gunnii) ; Kent's group, Bass' Straits, in travertine (W. J. Stephens). 

 Recent on the East coast of Tasmania, confined to a narrow belt of 

 coast country, and the adjacent Maria Island (Petterd, Hedley). 

 Habits arboreal. 



Bulinus gunnii SOWB., in Strzelecki's Physical Descript. of N. S. 

 Wales and Van Diemen's Land, p. 298, pi. 19, f. 5 (1#45). Buli- 

 mus gunnii Sby., R. ETHERIDGE, Jr., Catal. -Austr. Foss., p. 177. 

 (1878). JOHNSTON, Papers and Proc. and R<f>, Roy. Soc. Tas- 

 mania for 1879, p. 90 (1880) BRAZIER, Proc. Linn. Soc. N. S. 

 Wales, vii, p. 121 (1882). R. M. JOHNSTON, Geol. Tasmania, pi. 



24, f. 7 (1888) Liparus gunni Sby., HARRIS, Catal. Tertiary Moll. 



B. M., pt. 1, The Australasian Tert. Moll., p. 3 (1897). 



Bulimus tasmanicus PFR., P. Z. S. 1851, p. 260; Monogr. Hel. 

 Viv. iii, p. 406; iv, 466; vi, 107; viii, 144 Cox, Monogr. Aus- 

 tralian Land Shells, p. 72, pi. 13, f. 1 (1868) HEDLEY, Proc. Linn. 



Soc. N. S. Wales (2), vi, p. 21, pi. 2, f. 2 (jaw), 3 (teeth), 4 (geni- 

 talia) (1891). Buliminus (Caryodes) tasmanicus MARTENS in Alb., 

 Die Hel., p. 228 (1861). 



Originally described as a fossil (fig. 52), from the " Yellow Lime- 



