NEMATODE PAEASITES OF BIRDS 387 



are shifted forward and are asymmetrical both in position and devel- 

 opment, the right being a single stout papilla, the left slit into two 

 slender papillae. Sucker 85/* in diameter, its posterior edge 180/* 

 anterior to anus. Tail about 400/* long. Spicules unequal, the right 

 720/* to 880/*, the left 1.04 to 1.18 mm. long, similar in form and 

 narrowly alate. Female 11.5 to 12.5 mm. long by 385/* wide. Esoph- 

 agus 1.6 to 1.05 mm. long; bulb 300//. long by 200/* wide. Vulva pos- 

 terior to middle of body, dividing body length in ratio of 0:5 or 5.5. 

 Posterior third of tail tapers rapidly. Eggs 00/* to 05/* by 38/* to 40/*. 



HETERAKIS VULVOLABITA Chandler, 1926 



Chandler -- describes this species from cecum and large intestine of 

 Arborlcola torqueola; Zoological Gardens, Calcutta, India. 



Morphology. — Ilete'rakis (p. 50) : Small, stout worms. Esophagus 

 1/8 to 1/7 of body length. Lateral alae narrow. Male to 7 mm. 

 long by 250/* wide. Esophagus about 870/* long; bulb 210/* long by 

 105/* wide. Tail 230/* long, the slender part posterior to papillae 

 only 70/* long. Sucker small, 50/* in diameter, situated 90/* anterior 

 to cloacal aperture. Alate tail end short, 330/* long by 145/* wide. 

 An extra pair of caudal papillae present, apparently due to the 

 splitting of the second lateral paracloacal (adanal). Spicules un- 

 equal and dissimilar, the left 535/* long and very slender (3/* to 9/* 

 wide), the right 290/* to 300/* long by 18/* wide. Female 7 to 8 mm. 

 long by 205/* wide. Esophagus 875/* long; bulb 235/* long by 105/* 

 wide. Vulva prominent, situated well behind the middle of the 

 body, dividing the body length in a ratio of 7 : 5.5. Ovejector makes 

 a prominent loop near vulva. Tail about 540/* long. Eggs small, 

 55/* to 00/* by 35/*. 



PSEUDASPIDODERA VOLUPTUOSUS Chandler, 1926 



Chandler 23 describes this species from the cecum and large intes- 

 tine of Argitsianus argus; Zoological Gardens, Calcutta, India. 



Morphology. — Pseudaspidodera (p. 102) : Small, stout worms. 

 Lateral alae narrow, 25/* wide, originating 150/* behind the head, 

 extending about 3/5 of the body length in the female, about 3/4 in 

 the male. Subcuticular cephalic cordons conspicuous. Esophagus 

 1/7 to 1/0 of body length. Male 0.25 to 9.25 mm. long by 325/* to 

 380/* wide; head about 100/* broad. Esophagus 1.3 mm. long; bulb 

 300/* long by 250/* wide. Alae of tail well developed, their length 

 520/*, total width 270/*. Tail 300/* to 390/* long. Sucker, 100/* in 

 diameter, is 125/* to 100/* anterior to the cloacal aperture. Spicules 



»1926: Indian J. M. Res. Calcutta, vol. 3 (3), pp. G20, 621, figs. 5-8. 

 23 1!)26 : Idem., pp. 621, 622, figs. 9, 10. 



