8 GENUS PYRAMIDELLA. 
Inhabits the Pacific ocean, the Isle of France, the Isle of 
Vanikoro. 
Young specimens of this species are very slightly striated, and 
of a reddish color ; undulating lines and brown spots, distributed 
here and there, cover the shell. Some specimens are of a still 
redder color, and the points upon the shell are then more 
numerous, and of a deeper tint. 
6. PYRAMIDELLA GRACILIS, Broccur. The Slender Pyra- 
midella. 
(Collect. du Museum.) Broccus, Conch., subapp., pl. 6, 
fig. 6, a-b. 
Pl. I, fig. 7. 
P. testa cylindricé, angusta, apice acutissima, nitida, albida ; spira elon- 
gata; anfractibus convexiusculis, frequentibus ; sutura simplici, depressa ; 
apertura parva, oblonga. 
Shell cylindrical, narrow, very pointed at its summit, slender, 
turreted, brilliant, whitish, slightly striated longitudinally ; spire 
elongated, and formed of fifteen or sixteen somewhat distinct, 
approximate, convex whirls ; the lowest divided at its middle by 
a transverse, narrow, shallow stria. Suture simple, indistinctly 
channeled and flattened. Aperture small, oblong, a little nar- 
rowed at its extremities. Columella almost straight, a little 
turreted at its base, and provided with three folds, the first of 
which is more marked. Right lip thin, sharp, obliquely sinu- 
ous in the middle of its length ; its lower extremity extends a 
little beyond the columella, and forms in this part a shallow 
contraction or little gutter. 
Length 10 lines. Width 3 lines. 
Inhabits 
This pretty little species, one of the most cylindrical of the 
genus, has some resemblance in its form to the PyraMIDELLA 
maculosa. Ferussac refers this living species to the fossil shell 
figured by Brocchi, t. 2, p. 282, tab. 6, fig. 6, under the name of 
Turzo gracilis, and which is found at Saint Just, near Valterra, 
in the south of France. 
