PLATE LXXxX. 
Ooncavum-zone. 
Figs. 1—3.—Sonninta crassipuLiata, 8S. Buckman. 
Fig. 1.—Side view of a grand adult shell with the test preserved. Natural 
size. The central whorls have been damaged by the chisel, but this damage the 
artist has not shown. About one-third of the whorl is presumably body-chamber. 
Bradford Abbas. Formerly in the Collection of Mr. Darell Stephens, F.G.S. 
Now in my cabinet. (Page 353.) 
Fig. 2.—Outline of the whorl-section (with test) of the same specimen. 
Fig. 3.—Suture-line from another specimen. 
Figs. 4—6.—Sonninta orassicosrata, S. Buckman. 
Fig. 4.—Side view of an immature shell, showing the early appearance of the 
costate stage. Bradford Abbas. My Collection. (Page 354.) 
Fig. 5.—Outline of the whorl-section, with test. The inner edge is rather too 
sloped. 
Fig. 6.—Suture-line from a specimen intermediate between crassibullata 
and crassicostata. 
