278 CASSIS. 



Var. KALOSMODIX, Melvill. PI. 7, fig. 91. 



Smooth as in typical vibex, but without the spines :it the base 

 of the outer lip. The shell is obscurely three-banded, with 

 numerous longitudinal chestnut stripes, which become darker in 

 crossing the bands, and arise from darker sutural flames ; lip 

 externally tessellated with brown. Length, 3'75 inches. 



C. TORQUATA, Reeve. PL 7, figs. 92, 93. 



Smaller and wider than G. vibex, the volutions less oblique, 

 smooth, without varices ; lip sparsely spinose throughout ; flesh- 

 color, with a row of square chestnut spots at the suture and- 

 another near the base, back of lip tessellated with chestnut. 



Length, 1-35-1-75 inches. 



Port Jackson, Australia. 



This is perhaps only an extreme variety of 0. vibex ; like that 

 species, it lias a spi nose-shouldered variety. 



C. ACHATINA, Lam. PI. 8, figs. 94-98 ; PI. 9, fig. 7. 



Smooth, without vjiric-es ; flesh-colored, longitudinally flamed 

 with dark chestnut, often with narrow spiral bands of chestnut 

 and white articulations ; lip dentated throughout, or only below, 

 externally banded with chocolate. Length, 2'5 inches. 

 Cape of Good Hope (Cuming) ; Mauritius; 



Australia, N. Zealand, Philippines. 



C. turgida, Reeve (fig. 95), is a slight variety having a lighter 

 shell, and which has not the articulations sometimes found on 

 the type. 



Var. PYRUM, Lam. PJ. 8, figs. 96-98 ; PI. 9, fig. 7. 



Smooth, often thick, with a superior line of more or less promi- 

 nent nodules ; these, when well developed, sometimes define a 

 regular shoulder, and in such cases there are often inferior lines 

 of less developed nodules; coloring much as in the type, the 

 revolving bands of maculations usually more prominent, the 

 longitudinal streaks less so. 



Australia, Mauritius, Natal, Cape Verd Is. (Dunker). 



This holds the same relationship to C. achatina that the var. 

 erinacea does to the typical vibex. 



The synonyms are C. paucirugis, Menke (fig. 7); C.zelanica, 

 Lam.; C. striata, Hutton, and C. nivea, Brazier (fig. 98), a white 

 variety. 



