384 



INSIDIOUS DORY. 



Zeus Insidiator. 7>. argenteus, lateribus nigro punctatis f ore 



angusto extcnsili. 

 Silvery Dory, with the sides speckled with black, and narrow 



extensile mouth. 

 Zeus Insidiator. Z. ore angusto. Lin. Syst. Nat. Gmel. p. 



1221. Block, t. 192./. 2. 



NATIVE of the rivers and fresh waters of India ; 

 shape rhomboidal, like the former ; size smaller : 

 colour bright silvery, blueish green above, and 

 speckled with black points : body without scales : 

 mouth of a much more lengthened form than in the 

 preceding kinds, the lower lip being retractile, and 

 the mouth so constituted as to form at pleasure a 

 kind of tubular snout, through which the animal 

 occasionally ejaculates a drop of water against such 

 insects as happen to alight on, or fly about the 

 aquatic plants near the shores of the waters it in- 

 habits, and by this method (like the Chaetodon 

 rostratus, and some few other fishes) obtains its 

 prey. 



