CERITHIUM. 13& 



C. PLACiDUM, Gould. PI. 26, fig. 89. 



White, with rough spiral ridges and deep interstices, whorls flat,. 

 suture excavated. Length, 6 mill. 



China Seas. 



C. RARIMACULATUM, Sowb. PI. 26, fig. 91. 



Turreted, shouldered, spirally striated, the shoulder-angle tuber- 

 culated ; white, with a few chestnut spots irregularly disposed. 

 Length, 10'5 mill. 



Ins. Zebu, Philippines, 



C. REPLETULUM, Bayle. PI. 27, fig. 92. 



Short, ventricose, grey tending to black, banded with dark spots 

 and interrupted lines, Avhorls plaited above, aperture lirate and dark 

 banded within. Length, 22 mill. 



Ins. Bohol, Philippines. 



Described by Sowerby a.s C. obesum — ^preoccupied by Deshayes 

 for a fossil species. 



C. OBESULUM, Sowb. PI. 26, fig. 93. 



Solid, blackish, slightly angularly elevated on the back of the 

 whorls, with spiral series of beaded ribs, aperture whitish, lip 

 crenated within. Length, 11 mill. 



Hab. unknown. 



C. FLAMMICULATUM, Sowb. PI. 26, fig. 98. 



Greyish, with chocolate between the spiral series of small nodules 

 or grains. Length, 15 mill. 



Hab. unknoivn. 



C. ADUNCUM, Gould. PI. 26, figs. \)6, 97. 



Solid, distorted, with a stout varix on the body whorl, rather 

 smooth, with thin, thread-like spiral striae ; whorls 9, flattened, suture 

 scarcely impressed ; yellowish ash-color, tinged with brownish. 



Length, 1 in. 



Philippines, 



C. dorsuosum, A. Ad. (fig. 97), is a synonym. 



C. ALBOLiRATUM, Carp. PI. 26, fig. 90. 



Obsoletely ribbed, spirally lirate, one or two of the lirae more 

 prominent, forming an angle on the whorls, whitish. 



Length, 1-3 mill. 



Mazatlan. 



A very young species, probably a juvenile of some other species of 

 our Pacific coast. 



