86 



BULLETIN 140, UNITED STATES NATIONAL MUSEUM 



paired preanal papillae. One small unpaired and G paired postanal 

 papillae, thus a total of 18 caudal papillae. Spicules slightly curved 

 and pointed, 1.05 mm. long by 22/x wide. 



Female 28 mm. long. Vulva at about middle of body, slightly 

 salient. Anus 86G> from posterior end. 



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



Distribution. — Burnett River (Australia?). 



ASCARIDIA CIRCULARIS (Linstow, 1903) Raillict and Henry, 1914 



Synonym. — Heterakis circularis Linstow, 1903. 

 Host. — Centropus sinensis. 

 Location. — Not given. 



Morphology. — Ascaridia (p. 77) : Mouth with 3 large semicir- 

 cular lips, a dorsal with 2 papillae, the other 2 ventro-lateral. 



5mm 



Pigs. 118-120. — 118, Ascaridia circulahis. Male tail. After Linstow, 1903. 119 

 Ascaridia columbae. Male tail, a, Ventral view ; 8, side view. After Johnston 

 1918. 120, Ascaridia compar. Male tail. After Linstow, 1899 



Male 31 mm. long by 790/a wide. Esophagus 1/17, tail 1/48 of 

 total length. Preanal sucker large. Eight pairs of large papillae 

 (fig. 118), of which 3 are preanal, 5 postanal. Spicules 1.74 mm. 

 long. 



Female 52 mm. long by 1.07 mm. wide. Esophagus 1/14, tail 1/67 

 of total length. Vulva slightly anterior to middle, dividing body 

 in ratio of 12G : 129. Eggs 73/i, long by 42^ wide. 



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



Distribution. — Asia ( Siam ) . 



ASCARIDIA COLUMBAE (Gmelin, 1790) Travassos, 1913 



Synonyms. — Ascaris columbae Gmelin, 1790; Ascaris maculosa 

 lludolphi, 1802; Heterakis maculosa Schneider, 1866; Heterakis 

 columbae (Gmelin, 1790) Railliet, 1885. 



