250 



CONIDiE. 



Genus DENDROCONUS, Swainsoii. 



Shell heavy, conic ov turbinate ; spire truncate, whorls 

 numerous ; aperture linear, emarginate in front ; colu- 

 mella smooth ; outer lip thin, notched at the suture. 



Ex. D, figulinus, Linnceus, pi. 26, fig. 3. Operculum, 

 D. literatus, Linnceus, fig. 3, a, 3, h. Shell, D. figulinus, 

 fif 3 c 



The species of this genus are usually large, dense, 

 heavy shells, with a general uniformity of painting run- 

 ning through them all. We are indebted to Mr. Swain- 

 son for the genus, who has so well studied the entire 

 family of Cones, and fully appreciated them as an inde- 

 pendent group. 



Species of Dendroconus. 



betulinus, Linn. 

 figulinus, Linn. 

 genuauus, Linn. 

 glaucus, Hwass. 

 Loroisii, Kien. 



papilionaceus, Hwass. 

 Prometheus, Hivass. 

 pyriformis, Reeve. 

 Siaraensis, Htvass. 

 Suratensis, Hwass. 



Sub-gen. lithoconus, Morch. 

 Shell conic ; body-wliorl with the margin carinated. 



eburneus, Hwass. 

 emaciatus, Reeve. 

 flavidus, Lam. 

 Gruneri, Reeve. 

 literatus, Linn. 

 millepunctatus. Lam. 



ponderosus, Beck. 

 quercinus, Hwass. 

 suturatus, Reeve. 

 tabidus, Reeve. 

 tessellatus. Born. 

 virgo, Linn. 



