TURBINIDAE 121 



should be considered a typical Tegiila. Moderately common, especially in 

 the north. 



Tegula mo7itereyi Kiener Monterey Tegula 



Plate i8x 

 Bolinas Bay, California, to Santa Barbara Island. 



I to 1/4 inches in length, about as wide. Conical in shape, with very 

 flat-sided whorls and spire. Base almost flat. Surface smoothish, except for 

 almost obsolete spiral threads. Umbilicus very deep, lined with i or 2 weak 

 spiral cords. Columella arched, and with i prominent, pointed tooth. This 

 rather rare species resembles a large Calliostoma. It is found on kelp in 

 moderately deep waters. 



Family TURBINIDAE 

 Subfamily LIOTIINAE 



The operculum in members of this subfamily is round, multispiral, and 

 with a horny base on top of which are numerous rows of tiny calcareous 

 beads. 



Genus Cyclostrevia Marry at 18 18 

 Cyclostrevm cancellatum Marry at Cancellate Cyclostreme 



Southeast Florida, the Bahamas to Jamaica. 



/4 inch in diameter, flat-topped, 4 whorls, opaque-white. Widely and 

 deeply umbilicate. Axial sculpture of 15 to 17 rounded, low ribs which en- 

 circle the entire whorl and are made nodulose in crossing the 1 2 smaller spiral 

 cords. Periphery squarish, with a cord above, below and at the center. Rare 

 from I to 17 fathoms. Cyclostrevia is a neuter, not feminine, word. C. 

 amabile Dall from Cuba to Barbados is much rarer and difl^ers in being smaller, 

 in having a thicker, more rounded lip, and in lacking axial cords on top of 

 the whorls. 25 to 80 fathoms. 



Genus Liotia Gray 1847 

 Liotia bairdi Dall Baird's Liotia 



Plate 17U 



North Carolina to Florida and Yucatan. 



/4 inch in length, not quite so wide; thick, rose in color. Whorls glo- 

 bose, the last with about i o spiral cords of tiny, prickly beads. Suture deeply 

 channeled. Umbilicus very narrow and deep. Moderately common from 18 

 to 85 fathoms. 



