SUTER: NEW ZEALAND TROCHID. 266 
Monodonta angulatum [misprint for cingulatum | (Quoy & Gaim.): Gray 
in Dieffenbach’s ‘‘ New Zealand,” vol. 11, p. 238. 
Trochus Gaimardi, Philippi: Conch. Cab., p. 211, pl. xxx, figs. 7-9. 
Diloma Gaimarde (Phil.): Hutton, Man. New Zealand Moll., 1880, 
pp. 96, 201. 
Trochus Bernardii, Recluz: Journ. de Conch., 1852, p. 166, pl. vu, 
9) 
fig. 5. 
Trochus suleatus, Wood: Index Test. Suppt., pl. vi, fig. 40. 
Monodonta sulcata (Wood): Hutton, Proc. Linn. Soc. New South 
Wales, vol. ix, p. 867 (not sulcatus, Martyn nor Lamarck). 
Trochus bicanaliculatus, Dunker in Philippi: Conch. Cab., p. 202, 
pl. xxx, fig. 6. 
Monodonta lugubris, Gmel.: Pilsbry, Man. Conch., ser. 1, vol. x1, 
p. 100, pl. xix, fig. 93; pl. xxxv, figs. 24, 25. 
Whorls strongly, spirally ridged, carinate, black, the ridges nodulous 
and dotted with white or yellow; 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. 9-18, diam. 18-15 mm. 
Hab.—From Auckland to Dunedin, under stones near low-water 
mark. Not common, but more abundant in Cook Strait than further 
north or south. 
13. MonoponTa suBRostRaTA, Gray. 
Monodonta subrostrata, Gray: Yate’s ‘‘ New Zealand,” 1835, p. 308 ; 
Dieffenbach’s ‘‘ New Zealand,” vol. u, p. 238. 
Trochocochlea subrostrata (Gray): Hutton, Man. New Zealand Moll., 
1880, p. 96. 
Diloma (?) subrostrata (Gray): Hutton, Trans. New Zealand Inst., 
vol. xv, p. 126, pl. xv, fig. G (dentition). 
Monodonta subrostrata (Gray): Hutton, Proc. Linn. Soc. New South 
Wales, vol. ix, p. 867; Pilsbry, Man. Conch., ser. 1, vol. x1, 
p. 101, pl. xix, figs. 89, 90. 
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 lip 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 lower margin. Alt. 11-14, diam. 13-15 mm. 
Hab.— Auckland to Tauranga, abundant on Zostera beds. 
14. Monoponta (areLaNoroma, Menke, 
Monodinta melanoloma, Menke: Moll. Nov. Holl., 1848, p. 14. 
Lrochus melanoloma (Menke): Philippi, Conch. Cab., p. 146, pl. sty, 
fig. 9. 
Labio corrosa, A. Adams: Proc. Zool. Soc., 18451, p. 180; Hutton, 
an. New Zealand Moll, p. 96. 
