114 



BULLETIN 140, UNITED STATES NATIONAL MUSEUM 



Male i) to 10 mm. long by 290/x wide. Caudal extremity (fig. 162) 

 curved ventrally; caudal alae much reduced; cloacal aperature 186//. 

 from posterior end. Preanal sucker without chitinous ring, 212/x 

 long, its posterior end 465/x from caudal extremity. Eleven pairs 

 of papillae, of which 3 are preanal, ventral, and very large, 2 adanal, 

 and 6 postanal. Spicules very unequal in length and width, the 

 larger 2.54 mm. long by 16/* wide, the smaller 960/t long by 25,« 

 wide. Gubernaculum 169/* long. 



Female 10 to 15 mm. long by 350/* wide. Tail acute; anus 1.16 

 mm. from posterior end. Vulva slightly salient, anterior to middle 

 of body (at about % of body length from head). Ovejector (fig. 



Figs. 162-163. — Subulura carlosi. 162, Male tail, a, Side view; b, ventral, view. 

 163, Vulva and ovejector. After Barreto, 1018 



163) long (1.11 mm.) ; vestibule 254/x long, made up of 2 charac- 

 teristic parts, with chitinous lining; sphincter short (135/*). Two 

 divergent uteri. Eggs elliptical, 84/x long by 67/x wide, embryonated 

 when deposited. 



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

 galli (p. 82). 



Distribution. — South America (Brazil). 



SUBULURA CURVATA (Linstow. 1883) Railliet and Henry, 1914 



Synonym. — Heterahis curvata Linstow, 1883. 

 Hosts. — C'accabis chukar and Perdix graeca. 

 Location. — Intestine. 



Morphology. — Subulura (p. 104) : Body attenuated anteriorly. 

 Head with 3 weakly developed round projections, each bearing an- 



