sometimes may be found crawling amongst
rocks. It has no operculum. The Australian specimens are more handsome
than the New Zealand ones. The Maori name is Pupuwaitai.

~LOTORIUM RUBICUNDUM.~--The lower figure, until lately known as the Triton
nodiferus, from the old legend that it was the shell on which Triton
blew at the bidding of Neptune to calm or rouse the waves, is a heavy,
solid shell, varying a great deal in shape and colour; but usually
brownish pink, variegated with dark brown. No difficulty will be found
in identifying it. The specimens from Australia have more pink and less
brown, and are not quite as fine as those of New Zealand. It is found on
rocks and grassy banks in the North Island, but from being sluggish in
its habits the point of the spire in large shells is usually worm-eaten,
and good specimens over six inches long are seldom seen. The Lotorium
tritonis, the largest univalve in the world, is similar to the Lotorium
rubicundum, but not quite as solid or heavy. It has occasionally been
found in the Northern part of New Zealand. The Maoris used it as a
trumpet, fastening a mouth-piece to the spire. The Polynesian specimens
of the Lotorium tritonis attain a length of nearly three feet, but nine
or ten inches is the extreme length of our specimens. The Maori name is
Pupukakara, or Putara.

~SIPHONALIA DILATATA~ (Plate IV.).--Fig. 1 has a pale yellow or greenish
interior, the outside being reddish brown. Common on sandy, exposed
beaches, and is sometimes over five inches long. The Maori name is Onare
roa.

~SIPHONALIA MANDARINA~ (Plate IV.).--Fig. 2 grows to the same length as
the Dilatata; but is a narrower and more graceful shell. The interior is
usually greenish. Found in the same localities as the Siphonalia
dilatata.

~SIPHONALIA NODOSA~ (Plate IV.).--Fig. 3 is a pretty shell, sometimes
2-1/2 inches long. The interior is whitish, and the exterior the same
colour, with purple and white markings. It is common on ocean beaches
and sand banks in harbours.

~STRUTHIOLARIA PAPULOSA~ (Plate IV.).--Fig. 4 is a handsome yellowish
shell, with brown or purplish stripes. The interior is purple. The
nodules on the whorls are very prominent. This shell is sometimes four
inches long, and the lip, when the shell has attained full size, is
remarkably strong and solid, forming a shell ring. From this it is
known as the ring shell. In some places the lips, bleached to a perfect
whiteness, come ashore in great