PART II. 



STROMBIN^. 



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^. 



Outer lip considerably dilated, but never toothed ; spire 

 rarely longer than the aperture, with a sinus near the 

 base. 



Aphorrais Da Co5^a. (fig.'jG, a.) Spire, longer than 



76 



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. 848 — 850. 



Pteroceras Lafn. (fig. 'J'J.) 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. 



Mart. 83. f. 

 835. 

 purpuratus 5*?^;. 

 Chem. 157. f. 

 1494, 1495. 

 X 3 



pl. 159. 

 laciniatus. Ex. 

 Conch. 46. 

 Chem. 158. f. 

 1506, 1507. 



