SHELLS. 437 



througbout with brown spiral bair-like lines. Beneath the 

 sutural line tliere are alternately blackish and white blotches, the 

 latter being produced zigzagly over the whorls ; aperture sub- 

 circular, equalling the spire in length ; columella white. 



Length 3|- lines. 

 Breadth 2 lines. 



Var. Shell of lighter colour, with ouly slight indications of the 

 transverse pink bands ; but having the alternate blackish and 

 white sutural blotches, aud of the same size and proportions. 



Hab. Anatom, New Hebrides. 



PLATE XXXVIII. Figs. 5, 6. 

 STYLIFER DUBIUS, Baird. 



Shell sub-globose ; whorls 7 in number exclusive of sinistral 

 nucleus, smooth, shining, white ; last whorl globose, large, ex- 

 ceeding in length all the rest of the shell ; spire rapidly and 

 suddenly diminishing in size, and terminating in a sharp point ; 

 mouth ovate ; columella somewhat produced at the base ; outer 

 lip simple, acute. 



Height 3 lines. 

 Breadth nearly 2 lines. 

 Hab. New Caledonia. 



Approaches in shape and structure the Stylifer ovoideus of 

 A. Adavis, but differing from it in habitat, shape of the mouth, 

 and form of .the columella. 



