NEMATODE PARASITES OF BIRDS 107 



25. Cloaca] aperture of male 500ft from end; spicules 1.5 nun. long; tail of 

 female 1/8.5 of total length.; eggs 80** long by G'V* wide. 



Subulura halli, p. 117. 

 Cloacal aperture of male 210/* from end; spicules 7t;i> to .soo,u long; tail 

 of female 1/11 to 1/12 of total length ; eggs 65/* long by 35/t wide. 



Subulura galloperdicis, p. 116: 



2d. Preanal sucker 385/* long; spicules 1.71 mm. long_ Subulura travassosi, p. 131. 



Preanal .sucker not over 186/* long; spicules not over 1.5 mm. long 27. 



27. Lateral alae extend to first part of intestine 28. 



Lateral alae do not extend to posterior end of esophageal bulb 2'.). 



28. Preanal sucker 84/* long; spicules 899/* long by 16/* wide; gubernaculum 



127/* long; tail of female 97o> long Subulura olympioi, p. 121. 



Preanal sucker 186/* long; spicules .V>s,u long by 38/* wide; gubernaculum 

 22S/* long; tail of female 1.2 mm. long Subulura trogoni, p. 131. 



29. Lateral alae extend to median part of bulb; preanal sucker IG'-V* long: 



ovejector of female 950/* long, the trompe equivalent to % of its length. 



Subulura strongylina, p. 128. 

 Lateral alae extend to middle of esophagus ; preanal sucker 135/t long ; ove- 

 jector of female 779/* long, the trompe equivalent to less than % of 

 its length 30. 



30. The 2 most posterior pairs of caudal papillae similar, being the same size 



and shape whereas the third ventral pair from posterior end is shorter 

 and slenderer than the former 2 pairs and removed by quite a space 



from the second pair Subulura suctoria, p. 129. 



The 2 most posterior pairs of caudal papillae are dissimilar, the second 

 being shorter and more slender; the third ventral pair is at least as large 

 as the first pair and is in close juxtaposition with the second pair. 



Subulura similis, p. 127- 



The above key does not include Subulura nndtipapillata recently 

 described by Chandler (see Addenda, p. 388). 



SUBULURA ACUTISSIMA Molin, 1860 



Synonyms. — Physaloptera sayinata strigis brasiliensis ' ; P. stron- 

 gylina cuculi-seniculi 1 ; Ileterakis acutissima (Molin, 1860) Stossich, 

 1887. 



Hosts. — Guculus se/uculus, Coccyzus melacoryph/m^ PisorMna 

 atricapilla, Strix atricapilla. 



Location. — Proventriculus and intestine. 



Morphology. — Subulura (p. 104) : Head (fig. 151) rounded, with 

 2 lateral and 4 submedian papillae. At the entrance of the eso- 

 phagus 3 arcuate teeth. 



Male 7 nun. long by 300/* yvide. Caudal extremity (fig. L52) 

 subulate with pointed appendage. Preanal sucker large, elongate, 

 remote from posterior end. Caudal alae present. Ten pairs of 

 papillae, of which 5 are preanal, 5 postanal. Two equal spicules, 

 long and curved. 



•■Catalogue of the Vienna Museum. 



