128 BULLETIN 140, UNITED STATES NATIONAL MUSEUM 



This species is probably identical with S. suctoria, the distinction 

 between them being very slight since the width of the nematode 

 may vary considerably due to fixation, etc. and the caudal papillae 

 have been shown to be quite variable in some species. Since the 

 hosts and locality are different, however, it is considered advisable 

 to leave the two species distinct at present. 



SUBULURA STRONGYLINA (Rudolphi, 1819) Railliet and Henry, 1912 



Synonym. — Ascai^is strongylina Rudolphi, 1819 ; Strongylus spicu- 

 lutus Cobbold, 1861; Heterakis spiculatus (Cobbold, 1861) Travassos, 

 1923. 



Hosts. — Bucco capensis, B. melanoleucos, B. rufiventris, B. striola- 

 tus, B. swainsoni, B. tamatina, Gaprimulgus ruficollis, C. nacandua, 

 0. wutas, Chelidoptera tenehrosa, Crypturus noctivagus, G . species, 

 C . tatuapa, Cuculus melanorhynchus, C. tinguacu, Gallus gallus, 

 Malacoptila torquata, Microdactylus cristatus, Monasa leucops, M. 

 tranquilla, Nonnula 7iibecula, Odontophorus capueira, Perdix den- 

 tata, Podager nacunda, Tetrao turn, TinamAis, species, T. tataupa. 



Location. — Intestine. 



Morphology. — Subulura (p. 104) : Cuticle finely striated trans- 

 versely. Lateral alae well developed, 1.37 mm. long by 65/i. wide, 

 extending from head to level of median part of bulb. Mouth irregu- 

 lar hexagonal, with 6 papillae arranged in two lateral series. Buccal 

 capsule 48/t deep; 3 rectangular teeth, 19/* high, at entrance to 

 esophagus. Esophagus 1.04 mm. long. Bulb spherical, 205/* in 

 diameter. 



Male 4.36 to 12 mm. long by 308/x wide. Tail (fig. 187) conical, 

 with straight chitinous appendage 102/x long. Anus 186/i from end 

 of body. Preanal sucker fusiform, without chitinous ring, 169/* 

 long, its posterior end being 450/* from caudal extremity. Caudal 

 alae rudimentary. Eleven pairs of papillae of which 3 are preanal, 

 2 adanal, and 6 postanal. Spicules equal, 1.18 mm. long. Guber- 

 naculum 169/* long. 



Female 5.6 to 18.7 mm. long by 411/* wide. Tail acute, ending in 

 a chitinous appendage 102/* long. Anus 1.05 mm. from posterior end. 

 Vulva very slightly salient, a little anterior to middle of body. 

 Ovejector 950/* long; vestibule sinuous, sphincter small; trompe 

 equivalent to % the length of ovejector. Two divergent uteri. 

 Eggs 84/* long by 67/* wide. 



Life history. — Unknown; probably similar to that of Ascaridia 

 galli (p. 82.) 



Distribution. — South America (Brazil). 



SUBULURA SUBULATA (Rudolphi. 1819) Railliet and Henry. 1914 



Synonyms. — Ascaris subulata Rudolphi, 1819; Heterakis subulata 

 Schneider, 1866. 



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