124 BULLETIN 140, UNITED STATES NATIONAL MUSEUM 



SUBULURA RECLINATA (Rudolphi, 1819) Barreto, 1918 



Synonym,. — Ascaris reclinata Rudolphi, 1819. 



Hosts. — Crotophaga ani and 0. major and Piaya cajanea. 



Morphology. — Subulura (p. 104) : Cuticle with transverse stria- 

 tions. Lateral alae 1.6 mm. long, extending to level of anterior part 

 of intestine. Mouth with 3 indistinct lips, armed, with 6 papillae, 

 arranged in 2 lateral series of 3 papillae each, the median a little 

 smaller than the laterals. Buccal cavity small, divided into 2 parts. 

 Esophagus about 1.21 mm. long; bulb spherical. 



Male 11 mm. long by 359/* wide. Tail strongly curved ventrally 

 (fig. 181); caudal alae atrophied; cloacal aperture 211//, from pos- 

 terior end. Preanal sucker elliptical, 143/* long, its posterior end 

 508/* from caudal extremity. Eleven pairs of papillae, of which 3 

 are preanal, 2 adanal, 6 postanal. Spicules unequal, both in length 

 and width, the larger 1.52 mm. long by 19/* wide, the smaller 1.10 

 mm. long by 25/* wide. Gubernaculum 160/* long. 



Female 14.3 to 20.5 mm. long by 514/* wide. Tail ending in chi- 

 tinous appendage 140/* long; anus 1.28 mm. from posterior end. 

 Vulva salient, a little anterior to middle of body. Ovejector long 

 (1.28 mm.); vestibule relatively short; sphincter small; trompe 4 

 times the length of vestibule, very muscular. Two uteri. Eggs 

 elliptical, 76/* long by 50/* wide, embryonated when deposited. 



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

 galli (p. 82). 



Distribution. — South America (Brazil). 



SUBULURA RECURVATA (Linstow, 1901) Travassos, 1913 



Synonym. — Heterakis recurvata Linstow, 1901. 



Host. — Eurystomus afer. 



Location. — Intestine. 



Morphology. — Subulura (p. 104) : Cuticle smooth ; head end 

 rounded, with G papillae set cross-wise. Tail pointed. Esophagus 

 with bulb. 



Male 6.78 mm. long by 230/* wide. Esophagus 1/7, tail 1/25.7 of 

 total length. Preanal sucker long and narrow, with muscles radiat- 

 ing from it; Linstow describes 8 pairs of papillae, of which 2 are 

 preanal and 6 postanal; his figure (fig. 182) shows an additional 

 adanal pair, large and situated laterally. Spicules 880/* long. 



Female 9.26 mm. long by 430/* wide. Esophagus 1/7.9, tail 1/14 of 

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

 body length in ratio of 11 : 15. Eggs 49/* long by 36/* wide. 



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

 galli (p. 82). 



Distribution. — Africa (Langenburg, Nyassa See). 



