TROCHIDA. IOI 
circular ; columella somewhat arcuate, with a minute groove like 
umbilicus at its side; lip sharp ; interior pale and opaque near the lip; 
minutely punctured, and with crimson iridescence within (Gould.) 
Axis, *3; diameter ‘25. 
C. tenebrosus, 4. Adams, P.Z.S., 1851, p 170. Shell small, 
elevato-conical, imperforate, blackish, transversely sulcated, sulci whitish, 
smooth ; whorls hardly convex, the last sub-angulated ; base convex ; 
aperture sub-rotund, interior white, pearly; lip sulcated within 
(Adams. ) 
New Zealand (British Museum.) 
This shell is narrower and more Coarsely sulcated than C. huttontz. 
C. rufozona, 4. Adams, P.Z.S., 1851, ~. 170. Shell conoidal, 
pale, ornamented with transverse red ribs, interstices smooth; last 
whorl rounded; lip lrated within, the margin articulated with red 
(Adams.) 
This species is added to our list, on the authority of Mr. E. A. 
Smith, who says that specimens from New Zealand exist in the British 
Museum. 
Genus, ELENCHUS—Humphrey. 
Conical, imperforate; spire elevated, pointed; whorls flattened, 
smooth, polished ; aperture oval, sub-triangular ; columella with a tooth 
near the middle ; outer lip thickened interiorly. 
Australia. 
E. dilatatus, Sowerby, Proc. Zool. Soc., 1870, p. 251. Shell 
short, sub-cinereous, rather distantly spirally nbbed; spire short ; whorls 
4, the last broad ; aperture dilated ; greenish-blue, iridescent. Remark- 
able for the expansion of the last whorl (Sowerby.) 
New Zealand. (Brazier.) 
Genus, BANKIVIA—Beck. 
Conical; spire elevated; whorls smooth ; aperture sub-quadrangu- 
lar, not pearly inside ; columella twisted, simple. 
B. varians, eck, i Krauss Sudafric Moll.; Woodward's 
Manual of the Mollusca, pl. 10, f- 9; Chenu, f. 2674-5. Variable in 
colour, white, purple, rose, or black ; plain or banded, sometimes with 
longitudinal wavy lines. 
Length, ‘6. 
Cook Strait. Australia. Tasmania. 
Neither the animal nor the operculum of this genus are known. 
Genus, MONILEA—Swainson. 
Orbicular, depressed, largely umbilicated ; whorls spirally grooved ; 
the body whorl rounded ; umbilicus surrounded by a striated callosity ; 
columella terminated in front by one or two tubercles. 
