Figure 57. American Turret and Mangelia Shells. ATLANTIC: a, Kurtziella 

 li?no?iitella Dall, % inch; b, hiodrillia aepynota Dall, % inch; c, Genmmla perisce- 

 lida Dall, 2 inches; d, Moiiilispira leiicocyma Dall, % inch; e, Ancistrosyrinx 

 radiata Dall, ^ inch; f, Cerodrillia thea Dall, % inch; g, Genota viabrunnea Dall, 

 2 inches; h, Gymnobela blakeana Dall, ^ inch; i, Ma?igelia morra Dall, % inch; 

 j, Crassispira ebenina Dall, % inch; k, Mangelia corbicida Dall, % inch. PACIFIC: 

 1, Mitromorpha filosa Cpr., % inch; m, Mitromorpha aspera Cpr., % inch. 



