NEMATODE PARASITES OF BIRDS 



85 



by a papilla on the posterior rim. Caudal membranes narrow. 

 Two slightly unequal spicules. Ten pairs of papillae. (Fig. 116.) 

 (Magalhaes says there are 9, but Travassos notes that his detailed 

 description totals 10 and he figures 10.) One pair is anterior of the 

 sucker, 2 very close together behind the sucker, 1 near the cloacal 

 aperture, 2 just behind the cloacal aperture, 1 pair some distance 

 posterior of these, then 2 small pair close together, and finally a pair 

 near the extremity of the tail; between the last 2 is an asymmetrical 

 median papilla. (The foregoing does not agree with the figure 

 reproduced by Travassos.) Travassos states that the foregoing is 



'/smrri 



Figs. 114-117. — 114, Ascaridia australis. Male tail. After Linstow, 1898. 115. 

 ascaridia borealis. male tail. after llnstow, 1s84. 116, ascaridia brasiliknsis. 

 Male tail. After Magalhaes, 1892. 117, Ascaridia catheturina. Male tail. 

 After Johnston, 1912 



probably a description of a young male of A. lineata (p. 93) and 

 this appears very probable; according to him the asymmetrical 

 papilla is a refringent artefact. 



Female unknown. 



Life history. — Probably similar to that of A. Galli (p. 82). 



Distribution. — South America (Brazil). 



ASCARIDIA CATHETURINA (Johnston, 1912) Raillict and Henry, 1914 



Synonym. — Heterakis catheturinus Johnston, 1912. 



Host. — Taleg alius (Catheturvs) latJiami. 



Location. — Intestine. 



Morphology. — Ascaridia (p. 77): Anterior end rounded, narrow; 

 posterior end pointed in both sexes. Lateral alae extend for about 

 2 mm. posterior to mouth. Three equal lips. 



Male 21 mm. long. Caudal alae narrow. (Fig. 117.) Cloacal 

 aperture 400/x from posterior end. Preanal sucker 275/z anterior to 

 cloacal aperture. One small median unpaired and 2 prominent 



