266 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



Ifonodonta anrjulatnm [misprint for cingulatum~\ (Quoy & Graim.) : Gray 



ill DicfFi-nbacli's " New Zealand," vol. ii, p. 288. 

 Trochus Gaimardi, Thilippi : Coneh. Cab., p. 211, pi. xxxi, figs. 7-9. 

 Diloma Gaimardi (Phil.): Hutton, Man. New Zealand Moll., 188U, 



pp. 96, 201. 

 Trochus Bernardii, llecliiz : Journ. de Concli., 1852, p. 166, pi. vii, 



fig. 5. 

 Trochus sidcatus, Wood: Index Test. Siippt., pi. vi, fig. 40. 

 Monodonta sulcata (Wood) : Hntton, Tioc. Linn. See. New South 



AVales, vol. ix, p. 367 (not sulcatus, Martyn nor Lamarck). 

 Trochus hicanaliculatus, Dunker in Philippi : Coneh. Cab., p. 202, 



]}\. XXX, fig. 6. 

 Monodonta luguhris, (jrmel. : Pilsbry, Man. Conch., ser. i, vol. xi, 



p. 100, pi. xix, fig. 93; pi. xxxv, figs. 24, 25. 



Whorls strongly, spirally ridged, carinate, black, the ridges nodulons 

 and dotted with white or yelhnv ; three on the penultimate whorl, 

 interstices spirally striate. Outer lip black-edged, then nacreous and 

 lined with opaque white. Umbilical tract not very broad, bordered 

 on the outer margin by greyish- white. Alt. 9-13, cliam. 13-15 mm. 



Hah. — From Auckland to Dunedin, under stones near low-water 

 mark. Not common, but more abundant in Cook Strait than further 

 north or south. 



13. Monodonta stjbeosteata. Gray. 



Monodonta suhrostrafa, Gray: Yate's "New Zealand," 1835, p. 308; 



Dietienbach's "New Zealand," vol. ii, p. 238. 

 Trochocochlea subrostrata (Gray) : Hutton, Man. Ncav Zealand Moll., 



1880, p. 96. 

 D/loina{?) subrostrata (Gray): Hutton, Trans. New Zealand Inst., 



vol. XV, p. 126, pi. XV, fig. G (dentition). 

 Monodonta subrostrata (Gray) : Hutton, Proc. Linn. Soc. New South 



Wales, vol. ix, p. 367 ; Pilsbry, Man. Conch., ser. i, vol. xi, 



p. 101, pi. xix, figs. 89, 9U. 



Shell with subnodulose, spiral ribs, which are wider apart on the 

 upper surface and closer on the base. Yellowish with undulating, 

 longitudinal, purple lines. Outer lii^ edged with yellow and dotted 

 with black, then a narrower band of opaque white ; throat lirated, 

 silvery. Umbilical tract rather broad, greyish or yellowish-grey on 

 its outer loAver margin. Alt. 11-14, diain. 13-15 mm. 



Hub. — Auckland to Tauranga, abundant on Zostera beds. 



14. Monodonta melanoloma, Menke. 



Monodonta mclanoloma, Menke: Moll. Nov. Holl., 1843, p. 14. 

 Trochus melanolonia (Menke) : Philippi, Conch. Cab., p. 146, pi. xxiv, 



fig. 9. 

 Labia corrosa, A. Adams: Proc. Zool. Soc, 1851, p. 180; Hutton, 



Man. New Zeahind Moll., ]). 96. 



