372 CALLIOSTOMA. 



C. coNsiMiLis Smitli. PI. 16, fig. 8. 



Shell pyramidal, of a veiy pretty i)urplish lilac color, encircled 

 with pale transverse ridges. Whorls 7 ; the nuclear one rounded, 

 white : the rest flat, with three to four strong spiral lira3, whereof the 

 uppermost or the two uppermost, are more or less granulous. The 

 interstices are smooth, with the exception of oblique lines of growth. 

 Suture marked by a thread-like keel. Last whorl acutely angled be- 

 low the middle, with a flattish base, which has two or three sulci near 

 the angle, and two white or pale lilac lirse encircling the umbilical 

 region. Aperture somewhat obliquely quadrangular ; columella 

 pearly, margined with a white callosity. 



Alt. 11, diam. maj. 9, min. 8 mill. (Sjiiith.) 



Portland Bay, St. Andrews Sound, 10 fms, ; Cockle Cove between, 

 tide-marks. 



A very pretty species, easily recognized by its color and sculpture, 

 and recalling to some extent the northern ('. albastrum. Beck. 

 {Smith.) 



Trochus (Ziziphinus) consimilis E. A. Smith, P. Z. S. 1881, p. 34, 

 t. 4,f 11. 



C. coppiN(iERi Smith. PI. G7, fig. 75. 



Shell thin, shortly conical, rather shining, and somewhat iridescent, 

 owing to the thinness of the calcareous layer above the pearl ; very 

 pale olive on the body-whorl, becoming darker on the upper volutions 

 and reddish at the apex, ornamented with a series of minute red dots 

 at the upper part of the whorls, just beneath the suture, and a 

 second series on an angle at the middle of them, with a third series 

 around the periphery of the last volution, and some rather larger 

 spots aroixnd the umbilical region. Whorls seven ; the first three 

 or four somewhat convex, Avith three coarse spiral lirse. Antepenulti- 

 mate whorl flat, sloping above, with an acute angle a little above the 

 base, spirally lirated ; lirre little raised, with the exception of that at 

 the angle and one immediately beneath the suture, which is very 

 prettily beaded. Penultimate like the preceding, but with the 

 sculpture less pronounced and the angle nearer the middle. Last 

 whorl still more feebly sculptured, the beading having become 

 obsolete. It is biangulated at the middle, and the space between the 

 two angles is flat, giving the shell a very angular aspect. Base 

 a little convex, concentrically striated, white at the middle, with a 



