﻿ix. d. i Day: Ophiocephalus striatus 53 



Plate VII 



Suspensorium, opercles, and palatine. All the bones of the right side are 

 seen from the outside. Those at the top — articulated — are from a 

 smaller specimen than those below. 



2, palatine. . 13, suboperculum. 



7, quadrate. 14, operculum. 



8, metapterygoid. ' 40, interoperculum. 



9, symplectic. 71, mesopterygoid. 

 10, hyomandibular. - ; 80, pterygoid. 



11, preoperculum. 



Plate VIII 



Suspensorium, opercles, and palatine. The bones of the left side seen 

 from the inside. 



2, palatine. 13, suboperculum. 



7, quadrate. 14, operculum. 



8, metapterygoid. 40, interoperculum. 



9, symplectic. 71, mesopterygoid. 



10, hyomandibular. 80, pterygoid. 



11, preoperculum. 



Plate IX 

 The mandible. 



1, premaxillaries, left from dorsal and right from ventral side. 



3, dentaries, left from dorsal and right from outer side. 



4, articulars, left from dorsal and right from outer side. 



5, maxillaries, left from dorsal and right from ventral side. 

 12, angular, right from outer side. 



86, intra-articulars from dorsal side. 



The girdles. 



Plate X 



6, postclavicles ; lower part, left from inside, right from out- 

 side. 

 15, hypercoracoid ; left from inside, right from outside. 



28, supraclavicles; left from inside, right from outside. 



29, pectoral rays; left from inside, right from outside. 



30, hypocoracoid ; left from inside, right from outside. 



31, actinosts; left from inside, right from outside. 



32, pelvic girdle; from dorsal side. 



33, pelvic rays; from dorsal side. 



62, clavicles; left from inside, right from outside. 



77, postclavicle; upper part, left from inside, right from outside. 



