10 GENUSHARPA 



4. HARPA MINOR, LAM. The Elongated Harp. 



" /0-/33 > ' 

 (Collect. MASS. LAM.) LIST., Conch., pi. 994, fig. 57. 



PI. IV, fig. 6, and fig. 6 a, var. 



H. testa ovato-oblonga, grisea, fusco-maculosa ; costis angustis distanti- 

 bus nigro-lineatis ; lineis geminatis ; spirii 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 striae, 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 1 inch. 

 Inhabits the Indian Ocean, at Port Dorey in New Guinea. 



This species is very distinct from others in size, which is in- 

 vari^bly smaller, and by its peculiar coloring, much less variable 

 tha"n Wie other -harp&. 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. 



