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of C. acutangulus of Chemnitz. The shell described and figured by
th a t author (Conch.-Cab. vol. xi. p. 59, pi. 182. figs. 1772-3) is very
much more slender than the form referred to it by the two above-
mentioned writers, and has simple non-coronated margins to the
whorls of the spire.
The C. acutangulus of Kiener difi'ers from the typical form of
C. turriculatus merely in being more brightly coloured.
The C. acutangulus, lleeve (Conch. Icon. pi. 37. fig. 200), appears
to be a third species and although agreeing with Kiener’s shell
as regards foriQ, difiers in having a smooth non-tubcrculated spire.
4. Conus miliaris, Hwass.
Mozambique, between tide-marks.
5. Conus literatus, Linn.
Mozambique, between tide-marks.
6. Couus millepunctatus, Lamardc.
Glorioso Islands, between tide-marks.
7. Conus flavidus, Lamardc.
Darros Island, Amirantes, and Mozambique.
8. Conus tessellatus, Born.
Providence Eeef, Mascarenes, iu 24 fms. ; and African Island
Amirantes, beach.
9. Conus striatus, Linn.
He des Roches, Amirantes, beach.
C. floridus, Sowerby, Thesaurus, frontispiece, f. 558, is unquestionably
merely a slight variety of this well-known species, and
bears no relationship whatever to C. tulipa, with which it is
erroneously united by Weinkauff (Concb.-Cab. p. 180, and Jab r-
biich. deutsch. mal. Gesellsch. 1874, p. 285).
10. Conus martensi. ( P l a t e XLIV. f ig . A.)
Shell small, turbinate, much narrowed towards the base or front
of an orange colour, rather paler upon the spire. Whorls about
10, flat-topped and a little sloping, raised somewhat above one
another concentrically three-grooved, separated by a deepish suture.
Last whorl suhacntely angled above, then a trifle convex at the
sides, and being much attenuated anteriorly has a somewhat pyriform
appearance ; it is sculptured with fine lines of growth and
transverse indistinct striæ or shallow grooves, which around the
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base are much deeper. The aperture is very narrow, the outer
lip being thin and moderately sinuated above the angle. The spire
is short, gradated, with rectilinear outlines. Length 24 milbm.,
diameter 12^
Providence Eeef, Mascarenes, in 24 fms.
I have named this species in honour of Prof. E. von Martens,
from whose work on tbe Mollusca of the Mascarenes I have obtained
much information and assistance. I t is distinguished by tbe
narrowness of the aperture, its somewhat pyriform shape, and the
uniform orange tint of its colouring. Tbe spire is paler, except at
the deepish suture, which is likewise orange.
I I . Couus articulatus. ( P l a t e XLIV. fig. B.)
Soiverhy, Proc. Zool. Soc. 1873, p. 146, pi. xv. tig. 3.
Shell shortly fusiform, brownish pink, encircled near the middle
of the body-whorl witb a Avhite zone interrupted with blotches of a
deeper tin t than tbe general ground-colour of the shell, everywhere
ornamented witb transverse rows of minute reddish dots, which are
invisible to tbe naked eye. _ Spire white, terminating in a pink
apex, dotted with reddish brown upon the angle of tbe whorls, and
blotched witb tbe same colour upon their upper surface. Volutions
9, slowly enlarging ; three apical smooth, glossy, convex ; the rest
in steps one above the other, sloping above, faintly grooved immediately
beneath tbe suture, tbe furrow being broad, occupying half
the upper surface of N.-.» the w whorls,- —----7 but very »/ shallow,' not sqiirally
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striated, exhibiting only fine arcuate lines of growth. Tbe last
wborl is acutely carinate above, very faintly convex at tbe sides,
and contracted towards the f ro n t; it is smooth at tbe upper half,
and rather coarsely sulcated across beneath, a few of the intervening
ridges at tbe base and two passing through tXU \OXX\J O O tbe subcentral white
band being rather more distinctly dotted than the rest of the siir-
face. Aperture narrow, and outer lip thin and slightly sinuated
behind. Length 12 miliim., diameter 6.
Providence Reef, Mascarenes, in 24 fms.
This species is represented in Weinkauff’s monograph of this
genus (Conch.-Cab. pi. 56. figs. 1 & 4) under tbe name of 0. ana-
batrum. G. anabathrum of Crosse is, however, perfectly distinct
from tbe species here described, but is regarded by myself as a
variety of C. japonicus, Hwass.
Tbe locality “ Mauritius ” quoted by Weinkauff is confirmatory of
the conclusion arrived at th at his shell belongs to the same species
as that from Providence Reef, and tbe figure, although representing
a larger specimen, is fairly characteristic.
12. Pleurotoma (Defrancia ?) grisea. ( P l a t e XLIV. fig. C.)
Shell very small, subfusiformly ovate, grey or dirty white, sometimes
spotted witb brown below the suture, or exhibiting one or
two pale or whitish spiral lines. Whorls 8 ; first 4-| white, smooth,
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