PLATE LIII. 



Fig. Page. 



1. Berycopsis elegans, Dixon; imperfect fisli in left side view, two thirds 



nat. size. — Zone of Holaster sitbglobosus ; Hailing, Kent. W. B. 

 Balston Collection (B. M. no. P. 10001). 245. 



2. Aulolepis typus, Agassiz; imperfect fish in left side view, nat. size. — 



English Chalk. Sedgwick Museum, Cambridge, a., anal fin ; <■., 

 caudal fin; do., dorsal fin; plv., pelvic fins. 247. 



