MONODO>"TA. 105 



specimens received from Professor Hutton, who considers it doubt- 

 fully distinct from M. undulosa Ad. The animal is like that species. 



Var. PLUMBEA Hutton. PL 20, figs. 15-17. 



Shell globose-conic, imperforate, solid, dull purplish, the spire 

 eroded, white, the base usually somewhat eroded, bluish ; spire conic, 

 acute ; whorls 4-5, the last obsoletely coarsely lirate ; aperture as in 

 M. melanoloma, but outer lip margined within only by black ; colu- 

 mella as in M. melauoloma, but bordered outside by black. 



Ak. 14J, diam. 16 mill 



Neto Zealand. 



Dilomaplumbea HuTTO-^, Trans. N. Z. Institute, xv, p. 126 (1883). 



Animal, according to Hutton, like M. athiops, the foot being 

 margined with a band of black and white transverse stripes. Denti- 

 tion ; central teeth as in M. corrosa ; cutting points of laterals dentic- 

 ulated on both sides ; cutting points of inner marginals denticulated 

 on outer edges only ; those of outer marginals on both edges. Shell 

 like M. corrosa, but lacking the marginal yellow stripe within the 

 lip. The specimens described and figured were received from Profes- 

 sor Hutton. 



Var. UNDULOSA A. Adams. PI. 22, figs. 45-47. 



Yellowish, with longitudinal undulating lines of dark purple, or 

 altogether purple ; mouth yellow, articulated with purplish-black. 

 ■{Hutto7i.) 



Banks Peninsula to Dunedin, N. Z. 



Chlorostoma undidosum A. Ad., P. Z. S. 1851, p. 182.— E. A. 

 Smith, ZooL Erebus and Terror, MoUusca, p. 4, t. 1, f 15 (1874). — 

 Diloma undulosa Hutton, Manual N. Z. Moll, p. 96 (1880).— T. 

 attritus Hombr. et Jacq., Voy. au Pole Snd., p. 57, t. 14, f. 19-20 

 (1853).— Fischer, Coq. Viv., p. 186, t. 61, f 2. 



Var. guttata Hutton. 



Dark purple, usually spotted with white; mouth black; columellar 

 lip greenish at base; interior highly iridescent, markedly grooved. 



This variety looks like a hybrid between ]M. nigerrima []M. })orci- 



fer I] and M. melanoloma. (Hutton.) 



Xelson, y. Z. 



M. CARBONARiA Philippi. PL 34, fig. 30. 



Shell elevated-conoidal, imperforate, solid, smooth, black ; whorls 

 slightly convex, the last rounded ; aperture rhombic-rounded, 



