270 



DU, M. KIIALIL OK THE NEMATODE 



Sl-in. — The skin is striated to within a short distance of the 

 head. The striations are crowded near the cef)halic extremity, 

 where they are -02 mm. apart ; at the middle of the body tliey 

 are -025 mm. apart, while near the bursa they are far between, 

 being on an average "06 mm. apart. 



The thickness of the cuticle is -02 mm. in the cephalic two- 

 thirds of the body ; caudally it becomes thicker. Near the bursa 

 the cuticle reaches its maximum thickness, '08 mm. 



Motith collar. — This is distinctly separated from the rest of the 

 body by a shallow groove. It is regularly roun<led in outline. 

 Its lenkh is -048 mm. and its diameter -25 mm. 



Text-figure 69. 



Amira sameera, sp. ii. Cephalic portion of body. 



External leaf-croivn. — The inner surface of the mouth collar 

 is occupied by a circular crown consisting of 36 leaflets. These 

 leaflets are slender, -065 mm. in length, and tapering at their 

 free end. 



Head papilke. — The four submedian head papilla) are short and 

 conical. The two lateral papillae have a rounded top. 



Cervical papilke could not be made out in this specimen. 



Mouth capsule. — The shallow mouth capsule is "05 mm. deep 

 and -165 mm. in diameter. The chitinous plate surrounding the 

 mouth is thick and curved. Its concavity faces the lumen of the 

 mouth. 



