CLASS GASTROPODA 
187 
Calliostoma gloriosum Dali, 1871 
American Journal of Conchology, 7:127. 
Shell six-whorled, acute, whorls gently rounded, with fine, revolving, 
thread-like ribs; four or five ribs near the suture granulated. Last whorl, 
roundly carinated, base flattened, with about twenty-five revolving striae. 
Columella thick, not reflected, but base somewhat grooved or depressed 
behind it. Aperture about one-third of the length of the whole shell, 
rhomboidal, pearly, smooth. Shell of a beautiful light salmon color, orna¬ 
mented near the suture and carina with alternate patches of light yellow 
and chestnut brown. Alt., 1.1; maj. diam., .9 in. (Dali.) 
Type in United States National Museum. Type locality, Soquel, north 
side of Monterey Bay, California. 
Range. South of San Francisco to San Diego, California. 
Calliostoma antonii Koch, 1843 
Philippi, Abbildungen und Bcschreibungcn ncue oder wcnig gekannte Conchylien, 
“Trochus,” PI. 1, fig. 4. Tryon and Pilsbry, Manual of Conchology, 11:365; PI. 67, 
figs. 46-48. 
Testa conica, solida, imperforata, soride carnea; anfractibus planis, 
seriebus granulorum 8 inaequalibus, secunda maxima, cinctis; basi cingulis 
granulorum frequentibus aspera. Alt., 9"'; diam., 11J4'". (Koch.) 
Shell conical, solid, imperforate, dull flesh-colored, granulate; whorls 
flat, encircled by eight unequal series of granules, the second largest; base 
roughened by numerous granose cinguli. (Phil.) 
The shell is thick, quite conical, and consists of seven to eight whorls, 
difficult to distinguish in the neighborhood of the apex. These are flat 
and apparently margined, for one is likely to take the second series of 
granules of the following whorl for a margin. The whorls show about 
eight rows of very pretty granules of three sizes; the upper, third, fifth, 
and seventh rows have the smallest granules, the second the largest; 
the fourth and sixth have middle-sized granules. The periphery consists 
of several closely crowded rows of the smallest size, and is rounded on 
the lower whorls. The base is slightly convex, with a multitude of 
granulose series, the granules becoming larger near the center, which 
is a semicircle, its cord being the columella, formed of inferior, gray 
nacre. The aperture is rhomboidal; the outer lip has a little distance 
within, a brown streak. The color is dirty flesh color, with a few very 
pale brown clouds and fewer dark brown points. Alt., 18; diam., 23 mm. 
(Phil.) (Tryon and Pilsbry, Manual of Conchology .) 
Type in ? Type locality, not known to writer. 
[ 789 ] 
