PKOCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 71 



bursa the tips of the externo-dorsal rays are 122 /: apart. The dorsal 

 ray, which is about 60 /x long, divides into two branches in its posterior 

 third, each of the branches being more or less indistinctly divided. 

 The terminal division is unequal, the outer terminal branches being 

 shorter than the inner terminal branches. The spicules are slender, 

 becoming gradually attenuated, and are 170/x long. The proximal ends 



Figs. 1-3 — Anoplostrongylus delicatus. 1. Anterior Portion of Body; 2. Male Bursa: 3. Female 



Tail. 



of the spicules are separated by a distance of 58 ^t. The gubernaculum 

 is 55 yu long. Female 5.7 mm. long by about 95 n in maximum width. 

 The head is 33 to 36 /x wide. The cephalic cuticular expansion is trans- 

 versely striated, 70 /x long by about 47 ,u wide. The esophagus is 352 n 

 long by 25 /x wide in its anterior narrower portion and about 50 fj, in 

 maximum diameter in its posterior portion. The vulva is located at 



Fig. 4.— Anoplostrongylus DELicATus. Ovejector3 and Uterus, op]. 1., Ovejector l; ovj. S., Ovejec- 

 TOR 2; ovj. S., Overjector 3; ut., Uterus; v., Vagina. 



a distance of 1.45 mm. from the posterior extremity. The ovejectors 

 are well developed, their combined lengths being 403 m- The eggs 

 are from 63 to 75 /x long by 42 /x wide. The tail terminates in a slender 

 tip and has three terminal spikelike processes of which the dorsal one 

 is more slender than the two ventral ones. The tail is from 84 to 

 110 M long. 



