EPIDROMUS. 29 



T. CYLINDRICUS, Pease. PI. 15, fig. 139. 



Yellowish white, ornamented with longitudinal blotches of 

 dark reddish brown, regularly disposed, usually oblique on last 



whorl. Length, 10 mill. 



Tahiti. 

 T. DECAPITATUS, Reeve. PL 15, fig. 140. 



Whorls slightly, longitudinally ribbed, and closely concentric- 

 ally striate. Yellowish, longitudinally flamed with brown, with 

 two narrow yellow bands on the last whorl and one on the spiral 



whorl. Length, *66 inch. 



Kingsmill and Viti Isles. 



T. BRACTEATUS, Hinds. PL 15, figs. 141, 148, 149. 



Yellowish white, tubercles tipped with dark brown, frequently 

 disposed as revolving rows of spots. Length, -40 to '60 inch. 

 Philippines, Marquesas, Sandwich Isles, Red Sea. 



The old shells are frequently devoid of color, and whilst the 

 longitudinal ribs remain, the revolving stria? and tubercles disap- 

 pear ; in this state the species has been redescribed by Reeve as 

 T. latevaricosus (fig. 148). 



T. bacillum, Reeve (fig. 149), is apparently founded upon a 

 white specimen of bracteatus in a somewhat worn condition ; the 

 prominent varices on either side of the body-whorl mentioned by 

 him are equally characteristic of bracteatus, and the additional 

 spire varices of the latter are obsolete in some specimens. 



T. DIGITALIS, Reeve. PL 15, figs. 142, 143. 



White or light yellowish brown, with sometimes, faint brown 

 revolving bands. Length, 15 mill. 



Philippines, Mauritius, Viti Isles. 



The spire is not so turriculate, the whorls without the shoulder ; 

 the sculpture finer than in T. bracteatus, Hinds. 



T. CONCINNUS, Reeve. PL 15, figs. 144, 145. 



Shell decussately striated, the longitudinal striae rib-like on the 

 spire and sometimes on the bodj^-whorl. White or yellowish, 

 with flame-like brown markings and clouds, which are sometimes 

 subsutural, sometimes covering the entire surface, and occasion- 

 ally modified into large spots. Length, -66 inch. 



Philippines, under stones at low water., 



