The Purples. Dog Winkles 



with revolving lines of brown on the smooth whorls, and the 

 tell-tale basal tooth on the lip, is the largest of the genus. Length 

 3 to 5 inches. 



Habitat. — Chili. 



THE HARE'S EAR 

 Genus CONCHOLEPAS, Lam. 



Shell heavy, ovate, last whorl disproportionately expanded; 

 .spire short, turned obliquely to left, aperture wide, with slight 

 channel at anterior margin; inner lip flattened; outer, with two 

 small teeth; operculum small, inadequate; exterior of shell 

 strongly ribbed and set with lamellate scales. Foot large, occupy- 

 ing the whole aperture. 



Concholepas Peruvianum, Linn., lOoks like a great limpet 

 or Haliotis, clinging to rocks on the Peruvian coast by the suction 

 of its broad foot. The Chilians pound the rubbery flesh until 

 it is tender, then cook it and esteem it an excellent sea food. 

 Down the west coast the tribes use the shells for drinking cups, 

 as they are of handy size and shape. 



Genus MAGILUS, Montf. 



Shell spiral when young, thin, few-whorled, with wide mouth; 

 operculum ovate; later the shell is extended into a long, keeled 

 tube. Animal highly organised. 



M. Antiquus, Linn., begins life with a pretty, smooth shell, 

 like that of a whelk. Soon it attaches itself to a coral. As the 

 polyps grow, adding thickness to the solid wall, the mollusk 

 extends its aperture, and keeps it flush with the surface. The 

 animal, too, keeps moving outward, closing up the shell behind 

 it with solid lime. 



Habitat. — Red Sea, Indian Ocean. 



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