PLATE XI. 



Enchodus dolichus Cope. 



Fig. 1. — Complete skull, dorsal view: art, right articular; c-c, con- 

 tour of dorsal side of skull along the line s-s; dev, right dentary; de)i' , 

 left dentary; eth, ethmoid; fr, right frontal; hm, hyomandibular; ms, 

 mesopterygoid ; mf, metapterygoid ; ns, neural spine; cpi, epiotic; op, 

 opercular; ost, probably ossified tendons; pvix, premaxillary; pop, pre- 

 opercular; pr, pterotie; pst, post-temporal; qu, right quadrate; r, proxi- 

 mal end of rib; scl, fragment of supraclavicle; soc, supraoccipital ; vt, 

 vertebra. X %. No. 814. 



Fig. 2. — Same as figure 1, ventral view: art, left articular; br, 

 branchiostegal rays; ch, ceratohyal; eh, epihyal; op, left opercular; pop, 

 left preopercular; pt, pterygoid; qu, left quadrate; sop, subopercular. 

 Remainder of the lettering is the same as figure 1. X %. No. 814. 



Fig. 3. — Pair of pectoral fins and girdle apparatus belonging to the 

 skull, figures 1 afld 2: ac, actinosts; cl, clavicle; hco, hypocoracoid ; he, 

 hypercoracoid; nic, mesocoracoid; pc, pectoral rays; pst, post-temporal; 

 scl, supraclavicle. X ^/4. No. 814. 



