CARELIA. 113 



Monogr. iv, 572. Carelia c., PFR., Monogr. viii, 251. BOR- 

 CHERDING, Monogr. Carelia p. 238, pi. 19, f. 10, 11; pi. 20, 

 f. 5, 6. 



This species differs from C. bicolor by the strong develop- 

 ment of spiral sculpture. At least the fourth whorl has 

 numerous low spiral cords; the shoulder keel is conspicuous 

 on the last three whorls, and the strong baso-peripheral angle 

 limits a flat peripheral area on the last whorl. The white 

 band below the suture varies but little in width, in the series 

 of 14 specimens examined. In C. dolei the spire is decidedly 

 more slender above, and the sculpture of the early neanic 

 whorls differs. 



10. C. BICOLOR (Jay). PI. 20, figs. 1, 2, 3, 4, 7. 



Shell oblong-ovate, solid though not thick, spire red-brown, 

 darkening on the apical and penult, whorls, the last whorl 

 or two black or black-brown, with a cream-white zone be- 

 low the suture; this zone ascends the spire 2% or 3 whorls, 

 and reappears on the earliest whorls. The first S 1 /^ whorls 

 are but slightly convex and form a conic terminal cone; fol- 

 lowing whorls become decidedly convex, and taper more 

 slowly. The indistinct spirals of the early neanic whorls 

 often became low subobsolete cords or angles on the last 

 whorl. The angle bounding the base, distinct in the neanic 

 stage, is sometimes traceable in adult shells. Aperture very 

 dark with a bluish iridescence inside. The columella is 

 moderately concave, narrowly truncate at the base, and bears 

 a very obliquely descending white lamella. 



Length 36.5, diam. 15, length aperture 13 mm. Whorls iy 2 . 



Length 34, diam. 13.5, length aperture 13 mm. Whorls 7i/ 2 . 



Kauai : Hanekapiai ; on the ground, under Dracaena leaves, 

 on terraces of the slope at about 800 ft, (C. M. Cooke). 



Achatina bicolor JAY, Catalogue of Shells, 3d edit, 1839, p. 

 119, pi. 6, fig. 3. 



The typical form of C. bicolor. is a rare shell in collections. 

 The specimens described and figured are from the collection 

 of Mr. C. M. Cooke. 



The width of the subsutural white band varies a good deal 



