PTEROCERA. STROMBUS. 95 



sub-foliaceous_, with the sinus adjoining it. IJ, 

 B. W. 24. 4. 



PTEROCERA. 



Shell ovate-ohlong, ventricose, terminated inferiorly 

 by an elongated canal ; lip dilating by age into 

 a digitate wing, and having a sinus towards 

 the base ; spire short. 



P. LAMBis. Oblong-oval^ tubercular, gibbous, 

 with seven claws, variegated with rufous and 

 brown ; terminal digitations straight ; aperture 

 very smooth, rosy. 6. W. 24. 7- 



P. AURANTiA. Ovate, tubercular, gibbous, 

 transversely wrinkled, with seven claws, clouded 

 with white and yellow ; the claws slender, very 

 acute, and obsoletely nodulous; tail very long 

 and slender, smooth, and curved ; throat orange, 

 and quite smooth. 4J. S. 405. 



P. CHiRAGRA. Ovate-oblong, with the back 

 tubercular and sub-gibbous, armed with six longish 

 claws, which project on either side, and curve 

 upwards ; colour white, variegated with brown ; 

 throat rosy, striated with white. 6. W. 24. 5. 



STROMBUS. 



Shelly^entricose, terminating in a short emarginate 

 or truncate canal; lip dilating by age into a 

 simple wing, lobed or crenate superiorly, and 



