PART II. 



STROMBINjE. 



309 



FAMILY 3. STROMBID^. Wing-Shells. 



Outer lip dilated, or thickened internally, or detached 

 from the preceding whorl by a sinus ; operculum small. 



SUBFAM. 1. STROMBIN^E. 



Outer lip considerably dilated, but never toothed ; spire 

 rarely longer than the aperture, with a sinus near the 

 base. 



APHORRAIS Da Costa, (fig. 76. a.) Spire longer than 



the aperture ; outer lip dilated into finger- like pro- 

 cesses ; base produced, compressed, with a slender 

 grooved channel in the middle, but no distinct lobe. 



A. pes-pelicani. Mart. 85. f. 848850. 

 PTEROCERAS Lam. (fig. 77.) Spire 

 short; outer lip considerably di- 

 lated, ascending and attached to the 

 spire, in general divided into linear 

 processes; basal lobe inflexed, 

 toothed ; channel long. 

 P.truncatus.Chem. latissimus Sw. 

 Pi. 159. Mart. 83. f. 



laciniatus. Ex. 835. 



Conch. 46. purpuratus Sw. 

 Chem. 158. f. Chem. 157. f. 

 1506, 1507. 1494, 1495. 



x 3 



