38 



ANALYSIS OF MITRE. 



Sect. I. Mitre-sliapecl ; spiral, generally punctured grooves ; 

 lip crenulated. Sp. 1-23. Ex. episcupalis. 



Sect. II. Same as Sect. I., but passing to pyramidal, seldom 

 puncture-grooved ; lip not crenulated. Sp. 24-83. 

 Ex. casta, guttata, glabra, etc. 



Sect. III. Mitre-shaped or pyramidal ; scabrous or granu- 

 lated. Sp. 84-150. Ex. sjjhairulata. 



Sect. IV. Short, spirally ridged ; aperture contracted ; lip 

 crenulated. Sp. 151-174. Ex. rubiginea. 



Sect. V. Acorn-shaped. Sp. 175-188. Ex. glans. 



Sect. VI. Conical. Sp. 189-203. Ex. conica. 



Sect. VII. Short; teeth on inner edge of flattened outer lip ; 

 columella callous. Sp. 204-212. Ex. Ziervogliana. 



Sect. VIII. Narrow, cancellated or granular ; aperture con- 

 tracted, and outer lip crenulated. Sp. 213-223. Ex. 

 exilis. 



Sect. IX. Outer lip obliquely truncated, like tervbellum. 

 Sp. 224-234. Ex. dibaphiformis. 



Sect. X. Columbella-shaped ; outer lip contracted above the 

 middle. Sp. 235-294. Ex. aurantia, decurtata. 



Sect. XL Short, with no contraction of lip. Sp. 295-347. 

 Ex. jpardalis. 



Sect. XII. Principally the shorter species of the genus 

 " Turricula." Sp. 348-386. Ex. Pharaonis. 



Sect. XIII. Fusiform, long. Normal form of the genus 

 " Turricula " as adopted by some conchologists. Sp. 

 387-494. Ex. regina. 



Genus Dibaphus. Sp. edentulus 495, f. 608, 9. 



