350 



TELEOSTEI 



slides backwards and forwards over the ethmoid, the maxilla being 

 pushed forward by the palatine (Figs. 333," 441). An accessory 



Albula conorhynchus, B. and S. (From Ridewood, Proc. Zool. Soc.) Dorsal view of the 



a mill uasi oranomais iiiseu auu covereu wiui sinaii ueaugaruua piai/e ; gn, uim oony piauj 

 vering the basihyal (glossohyal) ; hi 3 , third hypobranchial ; hh, hypohyal ; pb ! and pb 3 , first 



masticating apparatus is often developed on the branchial arches 

 (Fig. 460). 



The median urohyal, attached in front to the hypohyals and 



FIG. 332. 

 Erythrichthys nitidus, Rich. (After Gunther.) 



passing back between the sternohyoid muscles, is quite peculiar to 

 the Teleostei (Figs. 303, 358) ; similar but paired bones occur in 

 Polypterus. 



