OF CONCHOLOGY. 19 



DESCRIPTION OF A NEW CONE FROM THE COAST OF 

 FLORIDA. 



BY WM. M. GABB. 



Conus Floridanus, Gabb. Plate 15, fig. 4. 



Description. — Shell biconical, robust, spire elevated, slightly 

 turrited, acuminate, sides slightly concave ; whorls eleven, upper 

 surface sloping, straight, margin angular ; body whorl flat on 

 the sides, marked by four or five oblique, revolving, impressed 

 lines in advance ; aperture narrow, linear, sides straight, bian- 

 gular posteriorly ; outer lip acute, prominent in the middle, 

 notched above the angle. Colors reddish yellow with a clouded 

 band of white, in confluent patches a little in advance of the mid- 

 dle, and on and near the angle of the whorl ; the posterior or 

 top surfaces of all the whorls are more or less white ; above and 

 below the angle are darker spots, a deeper shade of the body 

 color, irregularly disposed both on the white and yellow ground. 



Hob. — From Tampa Bay, Florida. Mus. Phil. Acad. 



Remarks. — Mr. Conrad, who presented the present specimen 

 to the Academy, and who has collected shells at Tampa Bay, in- 

 forms me that he has seen two specimens of this shell. The 

 first was found during his visit to Florida, the other, the present 

 one, was discovered by him in a miscellaneous lot of shells re- 

 cently brought from Tampa Bay. 



In general appearance this species is not unlike C. Delessertii, 

 Recluz, Mag. de Zool., 1863, p. 72 ; Kiener's Monog., p. 156, 

 pi. 53, fig. 2, but it differs from that species in being more 

 slender, and in having all of the outlines straight instead of be- 

 ing slightly sinuous. In Delessertii the tops of the volutions are 

 concave and the angles are rounded ; in the present species the 

 tops of the volutions are flat and sloping, and the angles are 

 sharp. In the former species the body whorl is slightly convex 

 above and faintly concave in advance ; in the present one the 



