GENUS PYRAMIDELLA. 5 
are adorned with longitudinal, undulated, reddish, or brown 
lines, quite near together ; wide, brown spots often partially 
cover them, a line equally brown passes over each whirl; upon 
the lowest are found three others, which sometimes form 
quite large bands of the same color. ‘The sutures are slightly 
canaliculated. Aperture ovate, whitish, marked likewise, with 
a few brown lines towards the depth of the cavity, exhibiting 
pretty distinct furrows. Right lip thin, terminated below by 
a small canal, at its union with the columella, which is slightly 
arcuated, with three folds at its base, the first very prominent. 
Umbilicus indistinctly marked. From the base juts out a 
round fold, which is seen to turn in a spiral manner in the 
umbilicus. Operculum ovate, membranous, its lamine not 
spiral, having one or two notches to receive the folds of the 
columella. 
Length 15 lines. Width 6 lines. 
Inhabits the island of Vanikoro, where it is found in great 
abundance. | 
It is to Quoy and Gaimard that conchologists owe a know- 
ledge of this species, which is remarkable for the distribution of 
its longitudinal lines. I suppose that the PyramipeLia fasciata 
of Ferussac must belong to the species I have just described, but 
in an injured state; upon that specimen, transverse bands only 
are perceptible. 
3. PYRAMIDELLA PLICATA, Lam. The Plaited Pyramidella. 
(Collect. Mass. Lam.) Lusv., pl. 577, fig. 32, a. 
Pl. I, fig. 4. 
P. testa ovato-oblonga, solida, longitudinaliter plicata, alba, punctis rufis 
seriatim cincta ; plicis levibus; interstitiis transversé striatis; ultimo an- 
fractu spira turgidula breviore. 
Shell ovate, elongated, solid; spire pointed, composed of 
ten or eleven slightly convex whirls, distinct and separated by a 
narrow scaffolding accompanying the suture, which is somewhat 
