ENCEODONTIDiE. 
227 
dentary (l.d.)^ whioh is exposed from within and displays 
a few of the teeth of both series. The left articulo- 
angular Q.ag.), with its terminal facette for the quadrate 
articulation, is slightly displaced. The imperfect right 
Fig. 9. 
Cimolichthys nepaolica ; head-bones, &c., nearly one quarter nat. size. [P. 6329.1 
b.occ., basioccipital; fr., frontal; l.ag., left angular; l.d., left dentary ; 
Lecpt., left ectopterygoid; l.enpt., left entopterygoid ; l.pl., left pala¬ 
tine; op., operculum ; pet., pectoral fin-rays; qu,, 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.(^.) 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.cZ.), with a few scattered 
pectoral fin-rays {pet.). Yertebral centra, as in the 
previous specimen, are scattered behind the head. 
Purchased, 1891. 
The following specimens of Cimolichthys from the English Chalk 
are not sutficiently complete for specific determination :— 
P. 4506. Imperfect cranium 0*16 in length, showing the frontal 
bones ; locality unknown. EnnisTcillen Coll. 
Q 2 
