NEMATODE PARASITES OF BIRDS 



193 



Life history. — Unknown; probably similar to that of H. galll- 

 narum (p. 197). 

 Distribution. — Africa (Oued N'za and Transvaal). 



HARTERTIA ANNULATA, new species 



Host. — Primary: Red-headed pheasant (Ptemistes, species); 

 secondary: Unknown, probably insects. 



Location. — Gizzard. 



Morphology. — Hartertia (p. 191) : Large thick worms, grayish- 

 white. Cuticle transversely striated and in addition thrown into 

 folds or annulations. Mouth (fig. 264 a, b, and c) with 2 lateral lips, 

 each trilobed, the lateral lobes finely denticulated and all 3 lobes 



Via. 263. — Hautertia obbsa. a, Ovejector ; b, male tail. After Seurat, 1915 



carrying several large teeth. Head constricted posterior to the lips 

 in dorso- ventral view. Lateral papillae precervical, situated near the 

 base of the lips. No other papillae observed on lips. Mouth cavity 

 very short. Esophagus two-part, the nerve ring situated at the 

 middle of the anterior part. No lateral alae. 



Male 2G to 30 mm. long by 800 to 900/x wide. Anterior part of 

 esophagus 531/a long by 144/x wide, posterior part 3.G5 mm. long, its 

 minimum width 183/x, maximum width 3GG/x. Posterior extremity 

 of body (fig. 2G5) straight or loosely curled. Caudal alae 1.4 mm. 

 long; they are narrow for a distance of 133ju, from the posterior 

 end, anterior to that they flare out comparatively wide, their span 

 being G31ju. Ventral surface densely covered with longitudinal rows 

 of small rounded protuberances. Four pairs of pedunculated pivanal, 

 2 pairs of pedunculated postanal papillae, all pairs symmetrical. 

 Cloacal aperture 382/x from tail end. Two dissimilar spicules (fig. 



