TROCHUS. 55 



T. FLAGELLATUS PlliUppi. PI. 19, figs. 3, 4. 



Shell conoid, umbilicate, granulate, white, painted with branching 

 stripes of reddish purple ; whorls convex, the last rounded ; base 

 convex, white ; penultimate whorl with six series of granules, 

 the interstices wide as the ridges, obliquely striate ; last whorl with 

 eight series of granules above, nine on the base ; columella oblique, 

 solute above, the edge rugose-denticulate, terminating below in a 

 prominent tooth ; outer lip rugose and dentate within. 



The whorls are pretty convex, especially above ; the last is round- 

 ed, deflected anteriorly and flattened ; the penultimate whorl has six 

 series of granules, which are the same width as their densely striate 

 interstices ; the last whorl however has eight, tw r o new ones having 

 been intercalated on the lower part, the eighth prominent, forming the 

 periphery. The base is rather convex, and has nine close granulose 

 line. The granules on the border of the umbilicus are but slightly 

 developed. The aperture is about as in T. pharaonius. The color 

 white, with numerous dark rose-red radiating, sometimes branching 

 stripes above. Alt. 10, diam. 15 mill. 



Habitat unknown. 



Separated from T. personatus and T. anus by the more numerous 

 lira} of the base ; from T. morum by the convex base, etc. 



Trochus flagellatus PHIL., Zeitschr.f. Mai. 1848, p. Wo. Conchyl. 

 Cab. p. 267, t. 39, f. 9. 



This is a species which I have not been able to identify. It 

 is evidently closely related to T. floridus. Philippi's description 

 and remarks are translated above, and his figures copied on my 

 plate. 



T. MORUM Philippi. PL 14, figs. 31, 32. 



Shell conicajp umbilicate, granulate, flesh-colored, at the sutures 

 and around the periphery rufous-maculate ; whorls planulate, 

 the last acutely angulate, with 6 series of granules, the interstices 

 wide as the ribs, obliquely striate ; base flat, with 10 granose lira? ; 

 columella oblique, contorted above, the margin reflexed, crenulate, 

 terminating below in a bifid tooth ; lip dentate and rugose within ; 

 the superior tooth large ; umbilical margin crenulate. 



The shell is pretty regularly conical, and consists of 6 to 7 slightly 

 convex whorls, of which the upper are angulated in the suture, the 

 last rather sharply carinated at the periphery, scarcely deflected 

 anteriorly, and flattened toward the aperture, as in the other species 



