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THE ZOOLOGIST. 



of conical teeth, with many of a larger size standing up amongst 

 them. The lower pharyngeal teeth are in a group extending 

 across the mouth in an open V-shape of similar teeth. A 

 circular group of teeth is also apparent on each side of the 

 junction of the third hypo- with the basibranchials. There is 

 an elongate group of minute cardiform teeth on the parasphenoid ; 

 the right half of this is shown on the left side of the illustration. 



Fig. II. — Ophiocephalus marulius. 



(Fig. II.) Incidentally it may be noted that the figure shows 

 part of the accessory branchial apparatus. This fish lives 

 buried in the mud of dried-up tanks and swamps during a long 

 period of dry weather ; respiration is carried on by this 

 apparatus from atmospheric air. To show the upper pharyn- 

 geal teeth clearly, the roof of the gullet has been pulled forcibly 

 backwards, throwing the branchial apparatus out of its proper 



