100 



THE ZOOLOGIST. 



Atherinichthys bo?iarense, the Sea Pajerry, also from Buenos 

 Aires, has twenty-two long horny gill-rakers on the first cerato- 

 hypobranchial arch, with six on its epibranchial. They all 

 carry teeth ; the longest gill-raker equals in length the depth of 



Fig. I. — Atherinichthys argentinense. 



the gill-laminaB below it. The inside of the first and both sides 

 of the other gill-bearing arches have numerous short gill-rakers 

 bristling with teeth ; these gill-rakers fit very closely together. 

 The upper and lower pharyngeal teeth are similar to those of 

 the last described fish. 



