116 
ACTIXOPTEKYGII. 
single series in the dentary bone are exhibited in the 
mandibular ramus, and some of the outer splenial teeth 
are broken away. Mantell Coll. 
P. 3516. Fragmentary trunk with imperfect upper and lower 
dentition, much worn, and also the opercular apparatus ; 
Tilgate Forest. The pterygo-palatine teeth are in three 
series, and a few of the comparatively small dentary teeth 
are preserved. Enniskillen Coll . 
Fig. 24. 
A 
Lepidotus mantelli ; diagram of arrangement of teeth in upper (A) and lower (B) 
jaws, chiefly based upon specimens Nos. P. 3516 and P. 6363. 
d., dentary; pt, pterygo-palatine; spl., splenial; v., vomer. 
P. 3518. Rostral region of skull displaying vomerine and pterygo¬ 
palatine dentition; Hastings. Enniskillen Coll. 
P. 6363. Five portions of dentition, comprising a vomer with 
remarkably acuminate teeth, two left mandibular rami, 
