NEMATODE PARASITES OF BIRDS 197 



of male tail (that of II. confusa being narrow, that of H. rotundata 

 wide), and number and arrangement of small papillae at caudal ex- 

 tremity. 



HARTERTIA GALLINARUM (Theiler, 1919) Cram, 1927 



Synonym. — FUaria gallinarvm Theiler, 1919. 



Hosts. — Primary: G alius gallus; secondary: Termites (Hodoter- 

 mes pretoriensis) . 



Location. — Usually in jejunum, occasionally in stomach, of pri- 

 mary host ; in the body cavity of the secondary host. 



Morphology. — Hartertia (p. 191) : Filiform worms, attenuating at 

 each end. Cuticle transversely striated. Head (fig. 267« and b) 

 set off by a slight constriction. Two lips, the inner surface of each 

 lip being divided by 2 ridges into three cup-like grooves, lined by a 

 thick cuticle. Each lip carries a thorn-like lateral and two circular 

 submedian papillae. Two cervical papillae a short distance behind 

 the lateral cephalic papillae. Esophagus 3.5 to 6 mm. long. 



Male 28 to 40 mm. long by 672 to 688/* wide, terminating in a 

 spiral. Esophagus 1/10 of total body length. Cloacal aperture 352 

 to 498/x (1/80 of total body length) from posterior end. Tail (fig. 

 269) slightly curved ventrally and with caudal alae supported by 6 

 pairs of pedunculated papillae, of which 4 are preanal and 2 are 

 postanal; in addition there is an unpaired sessile papilla situated in 

 the median line just anterior to the cloacal aperture and 4 pairs of 

 very small sessile papillae near the caudal extremity. Posterior to 

 the pedunculated papillae the diameter of the tail decreases sud- 

 denly. The ventral caudal surface (for a distance of 1.2 mm. from 

 posterior end in a 40 mm. specimen) covered with oval or rectangular 

 tubercles in linear arrangement. These tubercles are lacking in the 

 median region of the tail, from the cloacal aperture to the posterior 

 end, and on the anterior lip of the cloacal aperture. According to 

 the original description of this species, the left spicule 800/* long, the 

 right spicule 200/* long; according to measurements made by the 

 present writer on 4 specimens of 40 mm. length, the left spicule is 

 2.3 mm. long, the right spicule 630/* long. No explanation of this 

 discrepancy in the spicule measurements as made by Theiler and by 

 the present writer can be offered at this time. The long, slender 

 spicule (20/* wide), near its sharply pointed end, bears 4 large barbs; 

 the shorter spicule is 48/* wide and bluntly rounded. 



Female 60 to 110 mm. long by 736 to 784/* wide near posterior 

 end of esophagus. Esophagus 1/17, tail 1/77 of total body length. 

 Vulva 16 to 24 mm. from the anterior end. inconspicuous, with no 

 thickening of the cuticle. In specimen 100 mm. long, vestibule and 

 sphincter 830/* long, unpaired trompe 1.9 mm. long (fig. 268). Eggs 



