PLATE XI U. 



Am-momtes Selwynianus (ptigc 104.) 



Figure 1. Front view of a cast of this species, witli portions of the test adhering to 

 it, to show tlie b^ak-like constrictions on the periphery. 



•' ] a. Side view of ditto. 



Aji.monites Imhia, Forbes (pago 105.) 



Figure 2. Side view of a large individual. 



" 2 a. Portion of the sidi' lobe (?) of the aperture of the same specimen. 



Am.monites .JuKKsi: (?), Sliiirpc (i):igc 111.; 



Figure 3. Side view of tlie f)nly specimen collected. 

 " ,j (^ Outline of aperture of ditto. 

 " o i. Sculpture of ditto, magnified. 



