10 GENUS HARPA. 
4. HARPA MINOR, Lam. The Elongated Harp. 
(Collect. Mass. Lam.) Last., Conch., pl. 994, fig. 57. 
Pl. IV, fig. 6, and fig. 6 a, var. 
H. testa ovato-oblongé, griseA, fusco-maculosa ; costis angustis distanti- 
bus nigro-lineatis ; lineis geminatis ; spira exsertiuscula. 
Shell ovate, oblong, rather small, slightly elongated, whirls 
of the spire distinct, mucronated, more elongated than in the 
preceding species. ‘The lower whirl has eleven or twelve 
narrow and slightly elevated longitudinal ribs, the surface of 
which, of a yellow ground, is crossed transversely by a great 
number of very fine blackish lines, which approach alternately, 
two by two. The intervals of the ribs are marked with very 
thin and delicate longitudinal strie, and with brown and 
whitish lines undulating in bars. Sometimes one or two 
whitish bands are observed upon the last whirl. The aper- 
ture is ovate, alike whitish, with several small brown bands 
upon the edge of the lip which, externally, is covered by the 
last rib. The columella is almost straight, marked with small 
brown spots. 
Length 2 inches. Width | inch. 
Inhabits the Indian Ocean, at Port Dorey in New Guinea. 
This species is very distinct from others in size, which is in- 
variably smaller, and by its peculiar coloring, much less variable 
than the other harps. Some specimens are shorter and of a 
whitish color. In such the three or four last ribs grow broader 
towards the last lip. The substance of the shell also appears 
thicker, which would lead us to think that the difference belongs 
to that of sex. The animal of the elongated harp differs slightly 
from others in its coloring, only it is covered with a tint of a 
more intense red, and the circumference of the foot is not mark- 
ed with spots of a reddish brown, like that of the ventricose harp. 
