HARP A. 99 



II. IIOSKA, Lam. PI. 40, fig's. 66, 67. 



Kibs tint, irregular, sometimes very broad, sometimes narrow; 

 ribs b.-indecl. interstices festooned, with three interrupted bands 

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



Guinea, Sencyal. 

 II. NOBILIS, Lam. PI. 41, lig. 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-fo-2'5 inches. 



Indian Ocean, Philippines, Viti Islands. 



Distinguished at once from JL. rosea by the revolving black 

 lines on the ribs. 



II. MINOK, I Mm. PL 41, Jigs. 69-72, 78. 



Shell ovately oblong, obtusely angulated above; gray festooned 

 wit h 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, Madayaxcar, Viti Tsles. 



//. r/v/s.sY/, Phil. (fig. 70), and //. xolidnla, A. Ad. (lig. 71 ), arc 

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

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



II. <!RAciLis, Brod. and So\vb. PL 41, (ig. 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 In' its form, thinness and rosy tinge. 



II. STRIATA, Lam. PL 41, tigs. 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 



striso. Length, 1'25 inches. 



Mauritius. 

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



