CYPRAEIDAE 181 



Cypraea mus Linne (pi. 6e) is often found in American collections al- 

 though it is limited to the southern part of the Caribbean. It is 2 inches in 

 length, mouse-gray (Mouse Cowrie), and has a pair of irregular black-brown 

 stripes on the back. It is frequently deformed with one or two small bumps 

 on the back. 



Subgenus Zonaria Jousseaume 1884 

 Cypraea spadicea Swainson Chestnut Cowrie 



Plate 6b 



Monterey, California, to Cerros Island, Lower California. 



I to 2 inches in length, half as high, with a hard, glossy enamel finish. 

 Base white, with about 20 to 23 teeth on each side of the long, narrow aper- 

 ture. Sides bluish to mauve-gray, above which there is dark-chocolate fading 

 on top to light chestnut-brown with a bluish undertone. Moderately com- 

 mon at certain seasons at low tide among seaweed, and also down to 25 

 fathoms. 



Family OVULIDAE 



Genus Frimovula Thiele 1925 



Subgenus Pseiidosbnnia Schilder 1927 



Frimovula carnea Poiret Dwarf Red Ovula 



Plate 2 2q 



Southeast Florida, the West Indies and the Mediterranean. 



% to ^/2 inch in length. This species resembles a miniature cowrie. The 

 body whorl is rotund, pink to yellow in color and with numerous, fine spiral, 

 incised lines. Aperture narrow, arched, and with a canal at each end. Outer 

 lip curled in like that of a cowrie, and with about 20 small, rounded, whitish 

 teeth. Upper parietal wall with a large, rounded, short ridge or tooth. Apex 

 not showing. Rare from 25 to 100 fathoms. 



Genus Pedicidaria Swainson 1840 

 Subgenus Pediculariella Thiele 1925 



Fedicularia decussata Gould Decussate Pedicularia 



Plate yd 



Georgia to southeast Florida and the West Indies. 



/4 to V2 inch in length, moderately thick-shelled, with a long and flaring 

 aperture, and pure-white in color. Sculpture of fine reticulations with the 

 spiral threads the strongest. Columella a straight ridge with the parietal wall 

 concavely dished. The entire shell has a distorted, "squeezed" appearance. 

 Nuclear whorls obese, translucent-brown, reticulated, and with a sinuate lip 



