112 AGRICULTURAL EXPERIMENT STATION. 



tail. It is sometimes called dog-fish, like its ally (Hmi) from- 

 the north and west. It is called "mud minnow" from its habit of 

 burrowing into the soft bottom wlien the water dries out, and 

 it is able to maintain life in such position for a considerable 

 period. It is found in the more permanent woodland pools and 

 does feed upon mosquito larvae to some extent, as was demon- 

 strated when a small specimen was accidentally collected with a. 

 lot of wrigglers. The bottle was left standing over night and 

 next morning little more than the fish remained. On the other 

 hand, in these very pools known to be inhabited by these min- 

 nows, there are always plenty of larvae to be founds so that Mr.. 

 Seal is probably quite right in his conclusion that the species is- 

 unworthy of consideration in this connection. 



APHREDODERUS SAYAN US. 



Pirate Perch. 



"Nowhere abundant ; sluggish ; not widely distributed ; al- 

 ways among plants; a useless species." 



Dr. Bean states that the fish grows to a length of four inches,, 

 that it is very voracious, feeds at night, inhabits sluggish streams 

 and ponds in the shelter of aquatic plants and that nothing more 

 is recorded of its habits. 



ERIMYZON SUCCETTA. 



Chub-sucker; Creek -fish. 



"Abundant in ponds ; has the sucker mouth ; is a bottom 

 feeder; useless for mosquitoes." 



The form that occurs in New Jersey is that which has been 

 named ohlongus and grows to the length of a foot. The food, 

 according to Bean, consists chiefly of minute crustaceans, insect 

 larvae and aquatic plants. The larvae referred to are probably 

 those of the May-flies and other Neuropterous types, though, no 

 doubt, mosquito wrigglers would be accepted did they come 

 within reach. 



Mr. Seal at the end of his report presents a few general con- 

 clusions in which I desire to express my hearty concurrence. 

 They are : 



"That as destroyers of Anopheles larvae in ornamental ponds 

 containing much aquatic vegetation, only the top minnow is of 

 value. 



