TROCHIDA. 95 
end of columella with numerous, strong, tooth-like plaits; outer lip often 
strongly dentate internally. 
C. variegatus, Adams, P.Z.S.,1851,p. 160. Shell depressed, conical, 
pale, variegated with brownish-red ; whorls swollen above, ornamented 
with rings of granules ; body whorl acutely angled, base flat ; umbilicus 
crenulated ; columella tortuous above, margin reflexed, crenulated, base 
terminated by a biplicate tooth (Adams.) 
Auckland (?) Common in S. Australia. 
Genus, HUCHELUS—Philippi. 
Turbinated, sub-globose ; whorls with granulated -spiral ribs; often 
perforated ; columella with a small tooth in front ; outer lip thick, inter- 
nally crenated; operculum sub-circular, of few rapidly enlarging 
whorls. : 
BE. bellus, Wutton, CM.M., ~. 37. Small, imperforate, anterior 
end of columella with a deep notch ; pinkish-white varied with darker ; 
inside white, pearly. 
Length, ‘25; breadth, ‘25. 
Chatham Islands. Auckland. 
Genus, DILOMA—Philippi. 
Shell conoidal, smooth, imperforate, umbilical region covered with a 
thin porcellanous expansion of the columella ; columella margin pro- 
duced anteriorly, forming an elevated ridge round the inner margin of 
the outer lip. 
D. ethiops, Gmelin; T. sealandicus, Quoy, Lc, ili., p. 257, pl. 
64, f. 12-15 ; Monodonta reticularis, Gray, Dieff. N.Z., i1., p. 238. Sub- 
globose ; whorls spirally distantly grooved and obliquely striated ; 
rough when not worn ; purplish black or purple, spirally tessellated with 
white ; mouth purplish black, ouside of columella brownish ; when not 
rubbed, brownish-purple. 
Length, 1; breadth, 1:2. 
Very common ; variable in shape, the spire being sometimes much 
depressed. 
Auckland to Dunedin. Auckland Islands. Chatham Islands. 
Animal: Foot yellow below, with a brown stripe round the contour, 
black on the sides, with touches of yellowish-white behind ; filaments 
greenish ; mouth yellowish (Quoy.) 
D. hectori, Hutton, CMM. p. 37. Sub-globose, conical, 
roughish ; purplish black; the spire when eroded dark-green ; anterior 
portion of body whorl yellow ; mouth yellow, with a thin purple ring 
inside. 
Length, °75 ; breadth, ‘8. 
West Coast of the South Island. Dunedin. 
More conical than the next species, and differently coloured, but 
perhaps a variety of it. 
N 
