NEMATODE PARASITES OF BIRDS 



81 



ASCARIDIA GALLI (Schrank, 1788) Freeborn, 1923 



Synonyms. — Ascaris galli Schrank, 1788 ; Ascaris gallopavonis 

 Gmelin, 1790; Ascaris perspicillum Rudolphi, 1803; Ascaris gibbosa 

 Rudolphi, 1809; Fusaria inflexa Zeder, 1800; Ascaris inflexa (Zeder, 

 1800) Rudolphi, 1809; Ascaridia inflexa (Zeder, 1800) Dujardin, 

 1845; II eterakis inflexa (Zeder, 1800) Schneider, 1866; II. perspicil- 

 lum (Rudolphi, 1803) Railliet, 1893; Ascaridia perspicillum (Ru- 

 dolphi, 1803) Dujardin, 1845. 



Hosts. — Anus acuta, A. boschas domestica, A. b. fera, A. moschata, 

 Cairina moschata, Gallus gallus, Ithagenes cruentus, Numida mele- 

 agris. Phas-ianus gallus, Tetrao bonasia, T. urogallus, and, rarely, cat. 



Figs. 108-109. 



-Ascaridia hekmaphrowta. 108, Male tail. After Schneider, 

 18G6. 109, Male tail. After Skrjabin, 1917 



Location. — Small intestine ; in the large intestine, esophagus, crop, 

 gizzard, egg or oviduct, and body cavity as wandering parasites. 



Morphology. — Ascaridia (p. 77) : Large, yellowish-white worms, 

 with 3 lips of which the dorsal is larger than the 2 submedian; 3 

 dentigerous ridges on each lip. Lateral alae slender, thruout whole 

 length of body. Esophagus without bulb. 



Male 30 to 80 mm. long. Tail 1/50 of total body length, according 

 to Dujardin, its end obliquely truncated and with a narrow bursal 

 membrane on each side. There arc 10 pairs of caudal papillae (figs. 

 110 and 111), of which 3 pairs of pedunculated papillae are near the 

 sucker; this sucker (220/x. in diameter) has a cutinous (chitinous) 

 wall, which is interrupted posteriorly, according to Schneider ; Smit 

 figures it as uninterrupted and followed by a median sessile papilla. 

 Three pairs of pedunculated and 2 pairs of sessile papillae lie beside 

 and just behind the cloacal aperture, and 2 pairs lie in a group still 



