284 



INSIDIOUS DORY. 



Zeus Insidiator. Z. argenteus, lateribus nigro punctatis, ore 



angusto extetisili. 



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



extensile mouth. 

 Zeus Insidiator. Z. ore angusto. Lin. St/st. 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 Chsetodon 

 rostratus, and some few other fishes) obtains its 

 prey. 



