NEW MALLOPHAGA. 157 



ill front, where six large, oval, rectal glands are situ- 

 ated, but becomes narrowed posteriorly, tiie hind half 

 being a straiglit, narrow tube opening into the upper 

 part of the genital cavity. The relative size and shape 

 of each of these parts vary greatly with their contents. 

 The crop is provided with very i)roniinent longitudinal 

 and transverse muscles, which form a network of fibers 

 over it. 



It is evident that in ^ueh an alimentary canal as that 

 just described there are two distinct divisions in addi- 

 tion to those of the alimentary canal of an Amblyceran 

 species. The crop of Euryineto/ijis forms a i>art distinct 

 and sharply sejiarated from the cesophagus in front, 

 and also sets oif that portion of the oesophagus between 

 itself and the stomach as a distinct division of the ali- 

 mentary tract. The bits of feathers that form the food 

 of the insect are generally almost as long as the crop 

 and always lie in it in a longitudinal direction. 



The alimentary canals of all other Philo}»terids in 

 which this organ is known are similar in all essential 

 respects to that of Euvfjnietojnis faurus just described. 

 In Docophurus lari tlie crop is very much like that of 

 Eiiryinetojms taurine in shape (plate xi, tig. 8). It 

 extends from the anterior left part of the body-cavity 

 backwards and to the right. The (esophagus is narrow, 

 lies in the middle line, and enters the crop some dis- 

 tance to the right of the anterior end of the latter. 

 Arising from the ventral surface of the crt>{>, at a point 

 some distance to the left of the opening of the anterior 

 part of the cesophagus into the same, is the subinglu- 

 vial part of the oesophagus, which passes backwards a 

 short distance and enters the ventriculus. This is 

 rather long and tapers very much posteriorly, its ante- 

 rior end is provided wiih a large, lobe-like Ciecum on 



