BY r. HKDLEY. 259 



Planispira delicata, sp.nov. 

 (Plate vi., figs.28, 29, 30, 31.) 



Shell of moderate size, very thin lenticulai-, earinate, pei'foiate. 

 Colour cinnamon with chocolate on the umbilicus, along the 

 suture and around the aperture. Whorls four, rather rapidly 

 increasing, evenly wound, the last developing an obscure crest 

 and slightly descending at the aperture. Keel acute, continuous, 

 margining the suture of the spire. Sculpture : faint, irregulai- 

 growth-lines over-ridden abo\e and below by tine delicate shagreen; 

 initial whorls radiately striated. Aperture rhomboidal, lip thin, 

 scarcely reflected except at the base. I'mbilicus narrow, partly 

 concealed by the reflected lip. Major diam., 14: min. diam., 12; 

 height, 6 mm. 



Hnh. A single dead shell was taken, under leaves, on the 

 ground, at Belson's 8crub, Atherton, on November 21st, 1908 

 by Mr. Jackson. 



Planispika leucocheila Cox, var. pusilla, var.nov. 

 (Plate vii., figs.32, 33, :U, S;").) 



Helix marid' Cox, Proc. Zool. 80c., 1864, p. 594 (not Hdix 

 marift' Gi'ay, in DiefFenbach's New Zealand, ii., 1843, p. 262); 

 Helix leucocheilus Cox, nom. mut., Monogr. Austr. Land Shells, 

 1868, p. 54, PI. viii., f.7«, h, c\ Helix yafa,laensi.<< Cox, Proc. Zool. 

 Soc, 1873, p. 149, pi. 16, f.3a, /?. 



A northern variety corresponding to the typical form from the 

 Clarence River in shape and sculpture, but differs by having half 

 a whorl less, and by being proportionately smaller. The peri- 

 pheral brown line is maintained, but the colouied zone around 

 the umbilicus disappears in the variety, while the depressed space 

 between the crest and the lip may either be coloured like the 

 rest of the shell, or may be cluwolate passing into black. The 

 original of my figures is maj. diam., 10 5: rain, diam., 8-5; height, 

 6 mm. 



llab. — Mr. Jackson found it to 1h' larc in ilic Tinaroo scrubs, 

 south-west of Cairns, in November, 1908. 



