HARP A. 99 



H. ROSEA, Lam. PI. 40, figs. 66, 67. 



Ribs flat, irregular, sometimes very broad, sometimes narrow; 

 ribs banded, interstices festooned, with three interrupted bands 

 of rose-red blotches. Length, l'75-2*75 inches. 



Guinea, Senegal. 

 H. NOBILIS, Lam. PL 41, fig. 68. 



Ovate, rather ventricose, grayish pink, painted between the 

 ribs with chestnut and white articulations or festoons, and three 

 interrupted bands of purple-crimson blotches ; ribs rather wide, 

 crossed by bands of black narrow lines. Length, l'75-2'5 inches. 



Indian Ocean, Philippines, Viti Islands. 



Distinguished at once from H. rosea by the revolving black 

 lines on the ribs. 



H. MINOR, Lam. PL 41, figs. 69-72, 78. 



Shell ovately oblong, obtusely angulated above; gray festooned 

 with chocolate and white ; ribs moderately narrow, rather distant, 

 crossed by black lines, usually arranged in pairs. 



Length, 1*5-2 inches. 



Indian Ocean, So. Africa, Madagascar, Viti Isles. 



H. crassa, Phil. (fig. 70), and H. solidula, A. Ad. (fig. 71), are 

 synonyms ; and I think that H. virginalis, Gray (fig. 78), will 

 prove to be a faded or albino specimen of this species. 



H. GRACILIS, Brod. and Sowb. PL 41, fig. 73. 



Shell elongately oblong, slender, thin, translucent ; whitish 

 delicately festooned with rose-color or rosy brown ; ribs rather 

 narrow, without spines at the shoulder, crossed by thread-like 

 rose or chestnut lines, usually in pairs. Length, 1*5 inches. 



Polynesia. 



Distinguished at once by its form, thinness and rosy tinge. 



H. STRIATA, Lam. PL 41, figs. 74-77. 



Shell inflated, the ribs narrow, low, not reflected, remote or 

 crowded, the interstices lightly festooned with chestnut on a light 

 yellowish ground ; whole surface covered with revolving close 



striae. Length, 1*25 inches. 



Mauritius. 



H. cancellata (Chemn.), Sowb. (fig. 75), and H. Cabritii, 



