we Le 
> 
iy 
bor a | PROCEEDINGS OF THE NATIONAL MUSEUM. 201 
Genus CALLIOSTOMA Swainson. 
Calliostoma annulatum Mart. Pl. xxu, fig. 2. 
One beach-worn shell reported. (Trowbridge.) 
Calliostoma canaliculatum Mart. Pl. xxnu, fig. 6. 
Rare; only empty shells found. 
Calliostoma gemmulatum Cpr. Pl. xx11, fig. 3. 
Very good specimens are found in the bay; not plentiful. 
Calliostoma gloriosum Dall. Pl. xxu, fig. 5. 
Four or five good shells, all dark spotted, found at San Pedro Bay. 
At Soquel, Monterey Bay, this species is mostly of a pale salmon color; 
the southern ones are darker. (W. H. D.) 
Calliostoma splendens Cpr. Pl. xx1I, Fig. 5, 
One found; dead. (C. T. 8.) 
Calliostoma supragranosum Cpr. 
One obtained; not found living. (C. T. 8.) 
Calliostoma tricolor Gabb. Pl. x1x, Fig. 8. 
Examples are usually faded. 
Calliostoma versicolor Mke. 
One young specimen found. (C. T. 8.) 
Calliostoma costatum Mart. Pl. xxu, fig. 1. 
Rare on San Miguel Island. (W. H. D.) 
Genus THALOTIA Adams. 
Thalotia caffea Gabb. ( Ptychostylis caffea Gabb.). 
Three recent, also fossil sheils, at Dead Man’s Island. 
Genus GIBBULA Risso. 
Gibbula Canfieldii Dall.? var. 
One dead shell. ‘Possibly an extreme form of the very variable 
lirulata. Whether Gibbula or Margarita will depend upon the anatomy. 
The shell has the habit of Gibbula.”.. (W. H. D.) - Trowbridge. 
Genus MARGARITA Leach. 
Margarita lirulata Cpr. 
Rare living. Of Margarita lirulata Cpr., M. acuticostata Cpr., Gib- 
bula optabilis Cpr., G. parcipicta Cpr., G. suceineta Cpr., funiculata Cpr., 
and lacunosa Cpr., Mr. Dall says: ‘“ After a careful study of the types of 
