116 CARELIA. 



Var. minor Borcherding. PI. 20, figs. 13, 14. 



"A quite small dark black-brown form only 24 mm. long" 

 (C. adusta Gld. var. minor Borcherding, Monogr. Carelia p. 

 244, pi. 20, f. 17, 18). 



lOe. Var. zonata Borcherding. PI. 20, fig. 15. 



"An elegant form of black-brown color and 28 mm. long. 

 Comes near the typical form of adusta but has a sharply 

 defined white band below the suture" (C. adusta Gld. var. 

 zonata Borcherding, Monogr. Carelia p. 244, pi. 20, f. 13, 14). 



A "Carelia adusta Gould var. minor form zonata" Bor- 

 cherding (pi. 20, figs. 11, 12) is defined as "a third pretty 

 form of red-brown color and 25 mm. long stands near var. 

 minor but has a sharply defined white band below the suture" 

 (Borcherding, t. c. p. 244, pi. 20, f. 15, 16). 



The "zonata" forms are apparently small forms of 

 bicolor. 



Wf. C. B. ANGULATA Pease. PL 20, fig. 16. 



"Shell generally more slender, whorls above broadly angu- 

 lar. The wide and acute angulation which occupies the 

 greater part of the width of the whorls gives this variety a 

 particular aspect, which I think should be distinguished by 

 a special name" (Pease). 



Carelia adusta var. angulata PEASE, Journ. de Conchyl. 

 1870, p. 403. 



The specimen figured measures, length 25%, diam. 12 

 mm., having 6% whorls. The first whorl is smooth, the next. 

 two rather strongly costulate, about as in pi. 16, fig. 9. Then 

 the surface becomes striate. At the first third of the fourth 

 whorl an angle at the shoulder begins, becoming stronger to 

 the last whorl, where it is rather acute, the surface slightly 

 concave above and below it, A less acute angle divides the 

 flat peripheral from the slightly convex basal surface. The 

 embryonic whorls are bicolored, the upper third pale fleshy 

 brown, lower two-thirds dark red-brown; following whorl 

 light fleshy brown, becoming darker on the penult., dark 

 brown on the last whorl, but pale below the suture. 



