84 
DESCRIPTIONS OF NEw SPECIES OF MARINE 
MoLLUSCA OF SOUTH AUSTRALIA. 
By Jos. C. Verco, M.D., Lond., &c. 
[Read May 7, 1895.] 
Murex Tatei, spec. nov. PI. ii., fig. 2, 2a, 2b. 
Shell squarely pyriform, light, porous. Spire less than one- 
third the length of the shell. Nucleus conspicuous, papillate, 
one turn and a half, smooth, deep purplish-black, suture some- 
what channelled. 
Spire-whorls four, convex, roundly shouldered at the upper 
part ; varices not quite regularly disposed, some continuous with 
those on adjacent whorls others not, well marked, breadth rather 
greater than height, rounded and reflected slightly, most promin- 
ent above the shoulder. Regularly disposed spiral lire ; six on 
the penultimate, fewer on the posterior whorls, about as high and 
as wide as the interspaces. These are completely covered with 
very regular thin close-set erect longitudinal laminz, very uni- 
formly corrugated, so that between the lire they are straight, 
and on the lire are semicircular, with the convexity to the right. 
These semicircular corrugations are so uniform that their sides, 
which touch, seem to form thin spiral vertical plates with a longi- 
tudinal scalloping between, giving the shell an appearance of 
being covered with coral, or chain-stitch crochet work which is 
continuous over the varices. 
Body-whorl ventricose, roundly angulated at upper part, 
nearly flat above this, sloping with slight convexity below, 
markedly contracted at midpoint between the suture and anterior 
extremity of canal. Varices five, about one to one and a-half 
lines wide and a line high, highest behind the shoulder. About 
20 spiral lire, alternately higher and lower, covered with the 
same crenulated longitudinal laminz as the spire. Aperture 
obliquely oval, very slightly contracted anteriorly. Outer lip 
simple, tinely crenulated, and lirate for a line within. Outside 
thickened to two lines by about nine superposed scallopings, cor- 
responding with the crenulations of the lip. Inner lip distinct, 
on the arcuate columella, continuous behind with the outer lip, 
smooth, thin, inflected at the lower part of the aperture, so as to 
partly cover the canal. Canal slightly longer than the aperture, 
nearly straight, deflected first to the left, then straight, then to 
the left, almost closed ; shortly and sharply recurved at the an- 
