CONUS. 29 



lines of darker brown ; interior white or tinged with chocolate ; 

 epidermis fibrous. Length, 1/25-1/75 inches. 



West Coast of Cent. America. 

 Too closely allied to C. brunneus. 



C. SUFFUSUS, Sowb. PL 8, figs. 39, 40. 



Shell tuberculate on the spire, entire surface with revolving- 

 fine striae, becoming faint or obsolete above ; rosy, more or less 

 faintly three- or four-banded with light chestnut; epidermis thin, 

 light olivaceous. Length, 2-25 inches. 



New Caledonia. 



Crosse's var. Noumeensix (fig. 40) can be united with the 

 typical suffusus, its distinctive character being slight. 



C. PRINCEPS, Linn. PL 8, figs. 41-43. 



Shell with low, distantly but distinctly tuberculated spire, and 

 direct sides, slightly striate at the base; yellowish brown, orange 

 or pink, sometimes without markings, but usually with irregular 

 longitudinal chestnut or chocolate strigations most of which are 

 continuous from spire to base, and varying from fine and close 

 to heavier and more distant markings ; interior yellow or pink ; 

 epidermis dark brown, fibrous, with distant revolving series of 

 tufted spots. Length, 1-5-2-25 inches. 



West Coast of Central America. 



The broad-striped state is C. regius, Chemn. (fig. 42) ; that 

 with the stripes obsolete, C. lineolatux, Val. (fig. 43). 



Section VI I. AMMIRALES. 

 Leptoconu8,Wdrcb. Rhizoconus, Morch, pars. 

 C. AMMIR.ALLS, Liijii. PL 8, figs. 44-46. 



Chestnut-color with darker revolving lines, and upper, basal 

 and one or two approximate bands, finely reticulated with yellow 

 on a white ground ; this pattern is overlaid with large, irregularly 

 disposed triangular white spots. Length, 2 - 5 inches. 



Madagascar, Ceylon, Mauritius, East Indies, 



Philippines, New Caledonia. 



C. archithalassus, Dillw. (fig. 45), is a variety with coronated 

 spire ; in another variety figured by Kiener (fig. 46), the revolving 

 lines are elevated into granules. 



