28 THE ZOOLOGIST. 



Symbranchidje. 

 Amphipnoidze. 

 Amphipnous cuchia, an Indian fish that has accessory breath- 

 ing apparatus enabling it to live out of water, buried in mud, or 

 to live comfortably out of the water in the weeds on the banks 

 of a river or pool. The site of the sacculi is indicated by a 

 shiny flat surface on the bone of the occiput. The sacculi do not 

 lie exactly under the skull but rather to the outer sides. There 

 is a distinct lagena. The sagittae, though embedded in bone at 

 the sides and ends, could be lifted out through the orifices 

 above them. 



Apodes. 



Murcenesox talabon, called " Koolarie " by the Tamil fishermen 

 of Madras. The sacculi of this fish are pointed out in their 

 position by two large excrescences of the basi-occiput. The 

 sacculus is much embedded in bone, the sagitta fills the pocket 

 it is contained in fairly tightly. The lagena is small but distinct, 

 attached to the extremity of the sacculus. The sagitta is large 

 and flat. Fig. IV., 12. 



Percopsid^e. 



Percopsis guttatus, a freshwater fish found in North America. 

 The sites of the sacculi are shown by two large oval bulbs on the 

 basi-occiput of very thin bone. The sagittae are large for the 

 size of the fish. Fig. VI., 5. The specimen obtained was but 

 three and a half inches long. No trace of asterisci could be found. 



FlSTULARIIDiE. 



Fistularia serrata, a fish from India. There are two elongated 

 swellings of thin bone on the basi-occiput, not immediately 

 underneath but rather to each outer side that point out the 

 position of the sacculi. The sagitta is small. 



Amphisilidje. 

 Amphisile scutata. Illustrated fig. IV., 4. There is a slight 

 notch in the sagitta that is only visible if magnified. 



AtHERINIDjE. 



Atherinichthys argentinense. Illustrated fig. IV., 11. 



MuGILID^E. 



Mugil braziliensis. Illustrated fig. V., 6. 



