260 STROMBINiE. 



Sub-gen. canarium, Schumacher (Aporrhais, Klein, not Aldrov. 

 Strombidea, Swains. Strombella, Schliit). 



Inner lip restricted ; outer lip not dilated ; posterior canal 

 short or obsolete. 



albus, Mart. haemastoma, Sow. 



bulbulus, Soiv. Hellii, Rous. 



coniformis, Soiv. Luhuanus, Linn, 



covvngeitus, Adams and Reeve. maculatus, Nutt. 



decorus, Bolt, plicatus, Lam. 



dentatus, Linn. rugosus, Sotv. 



elegans, Sow. Riippellii, Reeve. 



erythrostoma, Chem. scalariformis, Duel. 



fasciatus, Born. terebellatus, Soiv. 



flosculosus, Mart. urceus, Liiin. 

 gibberulus, Linn. 



Genus HARPAGO, Klein. 



Outer margin of mantle digitated. 



Operculum claw- shaped, with the edge serrated. 



Shell turreted, ovate-oblong; aperture elongated, with 

 a long, recurved canal in front, and ending posteriorly 

 in a canal ascending the spire ; outer lip thickened, ex- 

 panded and digitate, with a deep sinus at the fore part. 



Si/n. S trombus, Humph., not Linn. Digitata, Fahr. 

 Pteroceres, Monif. Pterocera, Lam. Pteroceras, Sow. 

 Pterocerus, Thiirm. 



Ex. H. lambis, LinncBus, pi. 27, fig. 2. Operculum, 

 H. lambis, fig. 2, «, 2, h. Shell, H. lambis, fig. 2, c. 



When young, the outer lip of the shell in this genus is 

 simple, the claws gradually appearing in the form of open 

 canals, which afterwards become closed and solid. They 

 are sometimes called " Spider-claws " and " Scorpion- 

 shells," and are principally from the Indian seas. 



