PLATE IV. 
Fig. Page 
1. Allmla owcni (Owen); distorted head, right lateral and 
superior (1 a) aspects, one third nat. size. — London 
Clay ; Sheppey. ag. Artieulo-angular. hr. Branchio- 
stegal rays. d. Dentary. ep.o. Epiotic. fr. Frontal. 
hm. Hyomandibular. mpt. Metapterygoid. m-v. 
Maxilla, op. Operculum, orb. Orbit, p.op. Pre- 
operculum. pa. Parietal, pi'-f. Profrontal. Pt.f. 
Postfrontal. qu. Quadrate. n.op. Suboporculum. 
scl. Sclerotic, sq. Squamosal, ce. Inner hone bearing 
crushing teeth. [P. 9158.] 
-• Ditto : anterior end of parasphenoid (pas.) with vomer 
(v.) and ethmoid (etli.), oral aspect, one half nat. 
size.— Ibid. [30528.] 
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