ENCHODONTID^E. 
227 
dentary ( l.d .), which is exposed from within and displays 
a few of the teeth of both series. The left articulo- 
angular (, Lag .), with its terminal facette for the quadrate 
articulation, is slightly displaced. The imperfect right 
Fig. 9. 
Cimolichthys nepteolica ; head-bones, &c., nearly one quarter nat. size. [P. 6329.] 
b occ., basioccipital ; fr., frontal ; l ag., left angular ; l.d.. left dentary ; 
l.ecpt., left ectopterygoid ; l.enpt., left entopterygoid ; l.pl., left pala- 
tine ; op., operculum ; pet., pectoral fin-rays ; gu., quadrate ; r.cl., right 
clavicle ; r.d., right dentary ; r.ecpt., right ectopterygoid ; r.pl., right 
palatine ; scl., sclerotic plate ; sp.o., sphenotic (post-frontal). 
dentary (r.d.) shows its oral border, with the bases both 
of small and large teeth. Among other remains behind 
the jaws, both opercula (op.) are seen from within : there 
is also the right clavicle (r.cl.), with a few scattered 
pectoral fin-ravs (pet.). Vertebral centra, as in the 
previous specimen, are scattered behind the head. 
Purchased, 1891. 
The following specimens of Cimolichthys from the English Chalk 
are not sufficiently complete for specific determination 
**• 4506. Imperfect cranium 0-16 in length, showing the frontal 
bones ; locality unknown. Enniskillen Coll. 
a 2 
