NEMATODE PARASITES OF BIRDS 195 



being: present. The muscular development is pronounced also around 

 the opening of the trompe into the vestibule, the appearance being 

 almost that of a valvular arrangement. The uteri are at first parallel 

 but later diverge; they are very large, attaining a diameter of 

 500^ and containing an enormous number of eggs. The ovaries 

 are long and filiform, 83/x in diameter. Eggs 50ju, long by 

 35/n wide, embryonated when oviposited (fig. 2('Ad). 



Life history. — Unknown, probably similar to that of H. galli- 

 narum (p. 197). 



Distribution. — Africa (Union of South Africa (Potchefstroom)). 



Type material. — No. 25546, U.S.N.M. (Bureau of Animal Industry 

 helminthological collection) . 



This material was collected by R. O. Wahl, Entomologist at the 

 School of Agriculture^ Potchefstroom. 



HARTERTIA CONFUSA, new name 



Synonyms. — Physaloptera rotundata Linstow, 1906 b; Habronema 

 rotundata (Linstow, 1906) Seurat, 1914 /, not Habronema rotundata 

 (Linstow, 1883) Seurat, 1914 g and n. 



Host. — Primary: Otis houbara; secondary: Unknown, probably 

 insects. 



Location. — Intestine. 



Morphology. — Hartertia (p. 191) : Cuticle cross-striated at wide 

 intervals. Head with 2 large lips, each of which has a prominent 

 papilla on each side. 



Male 15.6 mm. long by 1.1 mm. wide. Esophagus 1/8.6, tail 1/40 

 of total body length. Caudal alae (fig. 266) narrow; median section 

 of ventral surface of tail covered with swellings arranged in longi- 

 tudinal lines. Six pairs of pedunculated papillae, of which 4 are 

 preanal, 2 postanal; in addition at the posterior end of tail are 5 

 Sessile papillae arranged as 2 pairs and a median unpaired papilla 

 anterior to them. Spicules unequal, the left 2.17 mm. long, the 

 right 510/x long, both with rounded ends. 



Female 20.3 mm. long by 1.5 mm. wide. Esophagus 1/9, the narrow 

 cone-shaped tail 1/20 of total body length. Vulva in anterior third of 

 body, dividing body length in ratio of 6:15. Eggs 39/* long by 26/x 

 wide, thick-shelled, embryonated. 



LJfe history. — Unknown; probably similar to that of //. galli- 

 narum (p. 197). 



Distribution. — Europe (Germany (Zoological Museum, Konigs- 

 berg)). 



Considerable confusion seems to have existed between the nematode 

 described by Linstow in 1883 as Fit aria rotundata and that described 

 by him in 1906 as Physaloptera rotundata. The one described in 



