have a somewhat radiating disposition on the s])irc. Botli specimens
have a series of small patches around tlie periphery of tho body-
whorl and a second below it on the under surface. They are considerably
smaller than those described by Bischor, bnt may not be
full-grown ; this is probably tho case, as the umbilicus is more
open tliaii iu the shells from Lifu. Tho whorls also exhibit little or
no trace of an angle above tho middle.
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94. Trochus (Monodonta) labio.
Linn., riiilippi in Küster's Con.-Cab. p. 16G, pi. 27. figs. 1-3, & pi. 44.
tig. 8.
Uab. AVest Island, Prince of AA*ales Channel, Torres 81111118( 1107)-
pimjer) ; Baruley Island (Brazier).
95. Trochus (Labio) zebra, AlenJce.
Ilah. Port Jackson (Coppinger Angas).
This species is the T. tceniatus of Quoy & Gaimard, 1834 (not
T. tmiiatus, AAmod, 1828), and Labio porcata of A. Adams is only a
slight variety.
Philippi (Con.-Cab. p. 160) is inclined to consider T. zebra merely
a variation of T. constrictus, and possibly he is correct ; still J think
further evidence is requisite in order to place this supposition beyond
a doubt.
Specimens of this species are in the British Museum from N.E.
Australia, Port Jackson, Port Phillip, Tasmania, and Now Zealand.
96. Trochus (Perrinia) elisus.
Trochus elisus, Gould, Proc. Post. Soc. Kat. Hist. 1849, vol. iii. p. 92 ;
Otia Conch, p. 57 ; Wilkes, E.iplor. Exped. Moll. p. 178, Atlas,
pi. 13. tigs. 216-216 c. _
Thalotia elisa, Gould, Otia, p. 245.
Hab. P o r t Molle, Queensland, 12-20 fms. (Coppinger)-, Singapore
(Gould); Island of Capul, Philippines, 011 the reefs at low water
(Cuming).
The two specimens of this beautiful species from Port Alolle are
peculiar in having four spiral lirse instead of three upon the upper
whorls, and those beneath the periphery of the last rather finer than
in the Philippine examples. The deep suture and the character of
the sculpture rather suggest Perrinia than Thalotia as the section
for this species.
97. Trochus (Euchelus) atratus.
Turbo atratus, Gmelin, Syst. Kaf. p. 3601.
Trochus atratus, Philippi, Conch.-Cab. p. 174, pi. 27. fig. 14.
Monodonta caualiciilata, iMmarcli, An. s. Vert. no. 20; Delessert,
Recueil, pi. 37. fig. 1 ; Quoy f Gaimard, Voy. Astrolabe, pi. 64.
figs. 21-25 (as Trochus).
Euchelus denigratus, I I f A. Adams, Gen. Bee. Moll. i. p. 418,
Var. =Aionodonta sulcifera, A. Adams, Proc. 7moI. 1851,_ P- 175.
Var. m in o r == Euchelus hrumieus, Adams Anyas, MS.f in Mus.
Cuminy 4 Anyas.
Ilah. Port Molle and Port Curtis, Queensland (Coppinger). _
This species varies considerably in size and colour. Tho typical
form, as figured by Philippi, is a small strong slioll of a_black-brown
colour, the spiral granulons ridges being articulated with yellowish
white. Tho columellar tooth is well developed ; tho aperture small
and strongly sulcate within, especially at the base. Another form
is considerably larger, having a total length of 2o "US
variety, which is generally of a lilac-hlack colour, paler between the
rid<^cs, the articulation upon tho latter is less conspicuous, the tooth
on the columella smaller, the aperture more slightly sulcate, and the
whole structure of the shell proportionally thinner than the typicai
form. Monodonta sulcifera is a light-coloured variety, with very
little articulation or spotting, and of mmaiure growth. _ ih is
accounts for the words “ lahro te nm ” and “ columella ad basin ti i-
su lc a ta ” in Adams’s diagnosis. The latter feature is not strongly
marked even in the type, and in the adult shell it becomes obliterated
by the deposition of callus and nacre. Euchelus brunneus,
which appears to he a MS. name attached to shells in the Cumingian
collection and to a series presented to the British Museum by
Mr. G. F. Angas, is a dwarf variety, and with the exception of size
(10 millim. in length) agrees in all respects with the normal form.
The following is tho geographical distribution of the species
Nicobar Islands (Chemnitz); Tonga-Tabou, Vanikoro (Quoyy,
Kingsmill Island, Timor, Flores (Martens); New Guinea, I i j i
Islands (Brit. Mus.); N.E. Australia, Torres Straits and 1 ort
Essington (large var. in Brit. AIus.) -, Roebuck Bay, North Australia
(var. sulcifera) ; Moreton Bay (Angas) and Sydney (Mus. Cuming)
for var. brunnea.
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98. Bankivia (Leiopyrga) picturata. ( P late VI. figs. C-C2.)
Leiopyrga picturata, H. ^ A. Adams, Ann 8r May Nat Hist 18Q3,
VO ,, xi. p. 19; Anyas, Proc. Zool. Soc. 1865, p. 181,1867, p. ^16.
Hab. St. Vincent’s Gulf, South Australia (Angas); Middle
Harbour, Port Jackson (Angas and Coppinger) ; Stuart Island, New
Zealand (C. Traill). . • . • • 1 •
This is a very pretty species, presenting variations in colouring
very similar to those of the common E. varians. The form originally
described by Adams is whitish, ornamented with fine undulating
lono-itndinal red-brown or pinkish lines, which, at the sutures and
at the periphery of the last whorl, are darker and assume the
appearance of spots. • 1 i 1 1 •
Another variety has the middle of the whorls encircled by a plain
narrow zone, without the series of spots at the periphery of the last.
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