FiNLAY.—Additions to Recent Molluscan Fauna of New Zealand. 521 
ords ; the spire-whorls with 2 equally strong, close spiral cords on the 
lower half, these, with another that emerges from suture, form 3 strong 
stices about equal to ribs, except on base where they are wider, rendered 
lamellose by growth-lines; shoulder generally smooth, but may bear 2 _ 
or eak ri : lour whitish, aperture glossy white inside. Spire 
elevated, turreted, usually higher than aperture with canal. Protoconch 
above canal. Suture indistinct. Aperture vertical, ovate, rounded above, 
produced below into a moderately long very narrow canal, slightly recurved 
and bent to left. Outer lip with a sharp edge but very rapidly thickening 
inside till the aperture is considerably reduced in area; 5 thick denticles 
rather far inside aperture, the lower 2 sometimes most prominent. Inner 
lip smooth, sharply marked off from body-whorl by groove extending from 
insertion of outer lip to end of canal. Columella vertical; bent, and drawn 
out to a fine edge along canal. Fasciole moderately strong, separated from 
inner lip by distinct umbilical chink. 
Height (type, broken), 12 mm. ; diameter, 5-5 mm. ; height of aperture, 
7mm 
am. 
Height (paratype, adult), 17 mm., diameter, 8 mm. ; height of aper- 
ture, 8 mm. 
Type in the author’s collection, dredged in 3 fathoms, Dunedin Harbour. 
One slightly beach-worn specimen found by Mr. R. S. Allan at the Otago 
eads is referable to this species, and is the paratype here figured. Also 
a few specimens dredged in 60 fathoms off Otago Heads. 
Note on Onithochiton subantarcticus Suter. 
Suter, in the Manual, refers to this form as a chocolate-coloured variety 
of O. neglectus (Rochebrune) (O. undulatus Q. & G.), and records it from 
Auckland and Campbell Islands, Cook Strait, and New Brighton. Iredale 
(Trans. N.Z. Inst., vol. 47, p. 423, 1915) remarks that “ Suter's record of 
his var. subantarcticus from Cook Strait and New Brighton does not refer 
to this species, which is confined to the subantarctic islands, but belongs to 
а species quite distinct, but as yet unnamed.” During the early part of 
the year the writer gathered two specimens of an Onithochiton under kelp- 
roots at Taieri Beach; these were very like O. neglectus (Rochebrune) in 
shape and sculpture, but were uniformly chocolate in colour, with indications 
of white patches on the ridge. It seemed highly probable that these were 
ane unnamed species." To settle this point the shells were sent 
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