328 



LOWER INVERTEBRATES. 



markings of the body are even more beautiful than those of the shell, as is shown by 

 the following description of the colors of a Javanese species, — "a pale, semi-transpa- 

 rent, pinkish-yellow mantle, with a range of semi-elliptic crimson spots around the 



%0 



Fig. 407. — Valuta junonia. 



Fig. iOS. — Valuta imperialis. 



thin free edge, and the remainder covei-ed with vertically-radiating linear spots, 

 and short waved lines of the same color; the foot, also of a yellowish, delicate 

 pink, is marbled all over with the deepest and richest crimson, and the same with 

 the siphon. The tentacles are yellowish, with a row of marbled crimson spots." 

 Species of Maryiiiella are found in all the warmer seas of the world, some being 

 found in the West Indies and on the coasts of Georgia and Florida. 



The olive shells, belonging 

 to the family Olividje, have 

 always been favorites with 

 collectors on account of the 

 beauty of their smooth and 

 polished porcellanous shells. 

 In these forms the spire is 

 short, tlie aperture deeply 

 notched, the columellar lip is 

 covered with a callous deposit 

 and usually ornamented with 

 oblique folds. In the genus 

 Oliva, which receives its 

 name from a shape somewhat 

 like that of an olive, the aperture is long and narrow, and the columellar lip is plicate. 

 The foot is very large and is laterally extended into two lobes, which, when the animal 



Fig. 409. — Oliva maura. 



