Shortcut Navigation:

Generalized Body Plan

Detailed descriptions and images can be viewed at the links provided below

Shell Dimensions

Alvaricosa Full Body Plan Dimensions

Anterior and Posterior    Length, Width, Height, Profile, Silhouette 

Shell Features 

Alvaricosa Full Body Plan Shapes

Posterior Ridge and Slope   Color Ray   Growth Lines   Beak, or Umbos 


Alvaricosa Full Body Plan Teeth

Hinge Teeth

American Museum of Natural History

Central Park West at 79th Street
New York, NY 10024-5192
Phone: 212-769-5100

Open daily from 10 am-5:45 pm
except on Thanksgiving and Christmas
Maps and Directions