260 



Cyclostoma affine, Risso. 

 Cyclostoma auriculare. Griff. 

 Cyclostoma polysulcatum. 

 Cyclophora auricularis, Swains. 

 (Aperostoma), Troschel. 



(Pomatias), Stud. 



(Cyelophorus), Montf. 

 (Chondropoma), Guild. 

 (Aperostoma), Troschel. 



is Truncatclla truncatula. 

 Cyclostoma Candeanum. 

 (Cyelophorus), Montf. 

 Cyclostoma maculosum, Jay. 

 (Cyelophorus), Montf. 



(Tropidophora), Troschel. 

 (Cyelophorus), Montf. 



Cyclostoma aurantium, Gray. 

 Cyclostoma aurantiaeum. 

 Cyclofclomamaritimum, Adams. 



(Cyelophorus), Montf. 



(Cyelophorus), Montf. 



is Cyclostoma mamillare, Lam. 



Cyclostoma Gironnieri, Souley. 

 Cyelostoma Luzonicum, Sowb. 

 (Cyelophorus), Montf. 



