ANACnis. 159 



light sienna-yellow, with whitish blotches and brown linear 

 markings ; aperture white ; the outer lip simple, moderately 

 thickened, slightly shouldered and curved above, five to seven 

 dentate within, L. -26, diam. -08 in. 



Egmont Key, W. Coast of Florida. 



C. AVARA, Say. PL 55, figs. 6t-Tl. 



Shell somewhat variable in outline, the spire longer or shorter 

 and the body-whori correspondingi}^ narrower or broader, with 

 numerous longitudinal plications, nsuall}' extending to about 

 the middle of the body-whorl, and revolving strife, conspicuous 

 towards its base, and elsewhere apparent in the interstices of the 

 plications ; yellowish white, more or less blotched or reticulated 

 irregularly with chestnut or chocolate, sometimes uniform yel- 

 lowish white. Length, 13-20 mill. 



Atlantic Coast of the United States; Tampa Bay, 



Gulf Coast of Florida. 



G. Lafresnai/i, Fischer and Bernardi (fig. 68), from the Island 

 of Marie Galante,"West Indies, and C. similis^ Rave;iel (fig, 69), 

 are synonyms ; the latter being founded on the long, narrow 

 forms. Between these and a stumpy specimen of C, avara, there 

 is much difference, but my extensive suites, from every portion 

 of our coast exhibit every intermediate form, and show a varia- 

 bility as to sculpture and coloring suggestive of a future great 

 reduction in the number of admitted species in the genus. C. 

 semiplicata^ Stearns (figs. 70, 71), from the West Coast of Florida, 

 is another long, narrow form, with fewer longitudinal ribs, yel- 

 lowish, reticulated with light chestnnt. At first sight it appears 

 very distinct from the typical avara, but is too close to Ravenel's 

 C. siinilis. I have W. Florida specimens before me which supply 

 the intermediate forms. Another probable S}- non3an is C. trans- 

 Zira^a, Ravenel (unfigiired), which is elevated conic, with close 

 ribs and five equidistant revolving striae on the upper half of 

 the body-whorl, and on those of the spire, nodulous at the suture 

 and the nodules wdiite. Length, nearly 1 inch. 



C. PHYLiNA, Duclos. PL 55, figs, 72, 73. 



Shell smooth, or flexuousl}' ribbed on the body-whorl only ; 



yellowish, closely reticulated with narroAv chestnut lines. 



Length, 9 mill. 



Habitat nnknoion . 



