94 



PHYSIOLOGY OF THE INVERTEBRATA. 



cuius, have been directly proved by the author* to be 

 pancreatic in function. The secretion from these caeca flows 

 into the chylific ventriculus, where digestion proceeds. 



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In the carnivorous Lihellula (the dragon-fly) there is no 

 crop or gizzard, only the chylific ventriculus is present ; the 

 * Griffiths, in Proc. Boy. Soc. Edinb., toI. 14, p, 237. 



