82 GENERA OF SHELLS. 



short sometimes flattened. Columella smooth. 

 Lip entire. 



The pyrula differs widely from fusiis, by its short 

 spire, and by the remarkable inflation of the last whorl, 

 being always at the upper part of the shell. 



P. canaliculata, carica, perversus, candelabrum, tuba, bu- 

 cephala, vespertilio, melongena, reticulata, ficus, ficoides, 

 spirata, spirillns, elougata, ternatana, bezoar, rapa, papyra- 

 cea, galeodes, angulata, squamosa, nodosa, citrina,abbreviata, 

 neritoidea, deformis, lineata, plicata. 



Div. II. — Lip constantly with callus, in all 



SPECIES. 



Struthiolaria. Shell oval, spire elevated ; 

 aperture oval, sinuated, terminated at base by 

 a very short canal, straight, entire. Pillar lip 

 callous, expanded, outer lip sinuate, thickened 

 without. 



The struthiolaria is distinguished from buccinum 

 by having no notch at the base of the canal, and b}^ the 

 varix on the right lip. — It has no other varix. 



S. nodulosa, crenulata. 



Ranella. Shell ovate or oblong, sub-de- 

 pressed, channelled at base, with two rows of 

 varices exteriorly ; aperture rounded or sub- 

 ovate ; varices more or less oblique, at each 

 half of a turn, forming a longitudinal series on 

 each side. 



Distinguished from struthiolaria and murex by the 

 position of the varices and somewhat flattened form of 

 the shell. 



