NEMATODE PARASITES OF BIRDS 



227 



Location. — In the gizzard, in small fleshy growths on the surface 

 and in the wall. 



Morphology. — Cheilospirura (p. 226) : Head (fig. 2905) with 2 

 large lateral lips in form of an equal-sided triangle, each lip with 2 

 lateral papillae on conical lobes; a finger-like median lobe also pres- 

 ent. The 4 cuticular cordons (fig. 290a) are double, irregularly wavy 

 and extend almost to the posterior extremity ; they do not anastomose 

 or recurve anteriorly. 



Male 12 to 14 mm. long. Two very unequal and dissimilar spicules, 

 the left slender and long, six times as long as the right; the right 

 spicule shaped like a chopping knife. Posterior end bent. Tail with 

 2 very wide, double-contoured caudal alae. Five pairs of postanal 



Fig. 200. — Cheilospirura hami'losa, a, Cordon; b. head, lateral view; c, male 

 tail. After Drasche, 1883 



papillae (fig. 290c), of which 2 are small and near the tail end, 2 

 are large and at some distance from each other, and the fifth pair is 

 small and just posterior to the cloacal aperture. 



Female 16 to 25 mm. long. Posterior end pointed. Vulva slightly 

 posterior to middle of body. Eggs 30/u, long by 20^ wide, according 

 to Centoscudi. 



Life history. — Unknown; probably somewhat similar to that of 

 DispJuvrynx spiralis, p. 238. 



Distribution. — North America (United States), South America 

 (Brazil, Argentina), Europe (Italy, France, Russia (Transcau- 

 casia)), and Australia. 



CHEILOSPIRURA GRUVELI (Gendre, 1913) Cram, 1927 



Synonyms. — Dispharagus species Gendre, 1912; Dispharagus gru- 

 veli Gendre, 1913; Acuaria gruveli (Gendre, 1913) Gendre, 1913; 

 Acuaria {Cheilospirura) gruveli (Gendre, 1913) Lopez-Neyra, 1923. 



Hosts. — Primary: Caccabis rufa and Francolinus bicalcaratus ; 

 secondary: Unknown. 



Location. — Between tunics of gizzard. 



