8 GENUS HARPA. 
harp. he shell is generally whitish, with bands on the ribs of 
a rose-colored tint; some specimens are colored more brightly, 
and have the ribs alternated with brown, rose-colored, and 
white lines: The interstices are filled with arched yellowish or 
brown spots. : 
2. HARPA ARTICULARIS, Lam. The Articulated Harp. 
(Collect. Mass. Lam.) Guaurrert, Test., pl. 29, fig. D. 
Pl. I, fig. 3. 
H. testa ovata, subventricosa, grisea; costis angustis distantibus albo 
nigroque articulatim maculatis ; spird exsertiuscula, muriculata. 
Shell ovate, ventricose, rather thin ; spire conical, indistinctly 
muricated ; the ribs pretty narrow, distant, slightly flattened, 
marked by transverse brown lines, articulated and winding 
like light festoons; between these lines appear white and 
violet spots, Interstice between the ribs grayish. The lon- 
gitudinal waved lines which are there seen, are strongly arch- 
ed, and very contiguous to each other, they form species of 
transverse bands, at the origin of which exists a triangular 
brown chestnut-colored spot ; the sharpest angle of this spot is 
continued sometimes into the interstices, in the middle of the 
narrow and white bands formed by the bars to the number of 
twelve upon the last whirl. The brown bars are less conspic- 
uous. Aperture large, ovate, of a violet color upon the edge, 
and reddish within; through these colors are perceived the 
transverse brown bands. The columella is polished, covered 
over its whole length by a large brown chestnut-colored spot. 
Length 3 inches. Width 2 inches. 
Inhabits the Indian Ocean. 
This shell appears sufficiently distinct from the ventricose harp, 
for us to retain it as a distinct species, as was done by Lamarck. 
The coloring of the ribs is pretty constant in the distribution of 
the transverse bands, which are always very apparent and very 
near each other. 
