ANACHIS. 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. 67-71. 



Shell somewhat variable in outline, the spire longer or shorter 

 and the body-whorl correspondingly narrower or broader, with 

 numerous longitudinal plications, usually extending to about 

 the middle of the body-whorl, and revolving striae, 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. 



C. Lafresnayi, Fischer and Bernard! (fig. 68), from the Island 

 of Marie Galante, West Indies, and C. similis, Ravenel (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. 

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

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

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

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

 C. similis. I have JV. Florida specimens before me which supply 

 the intermediate forms. Another probable synoi^m is C. trans- 

 lirata, Ravenel (unfigured), which is elevated conic, w r ith 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 white. Length, nearly 1 inch. 



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



Shell smooth, or flexuously ribbed on the body-whorl only ; 

 yellowish, closely reticulated with narrow chestnut lines. 



Length, 9 mill. 





Habitat unknown . 



