130 BULLETIN 140, UNITED STATES NATIONAL MUSEUM 



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

 (/alii (p. 82). 



Distribution. — Europe (Austria (Vienna Museum), Spain, and 

 Corsica.) 



SUBULURA SUCTORIA (Molin, 1860) Railliet and Henry, 1912 



Synonyms. — Heterakis suctoria Molin, 1860; Allodapa suctoria, 

 (Molin. 1860) Seurat, 1914. 



Hosts. — Athene noctua, Caprimulgus campestris, C. europaeus, C. 

 nigrescens, C. rtifus, C. species, C. vociferus, Coturnix delagorgnei, 

 Dicholophus margrafi, Francolinus oicalcaratus, Gallus gallus, Helio- 

 treptus anomalus, Hydropsalis climacocercus, Lurocalis semitor- 

 qiiatus, Meleagris gallopavo, Microdactylus cristatus, Numida melea- 

 gris, N. papillosa transvaalensis, Nyctibius aethereus, N. grandis, N. 

 jamaicensis, Nyctidromus albicollis, "Otis houbara' 1 (Houbara mac- 

 queeni or H. undvJata), Podager nacunda, Pternistes swainsoni, 

 Sephina francolinm, Stenopsis candicans. 



L oca tion . — Cec a . 



Morphology.— Subulura (p. 104) : Filiform worms, the anterior 

 portion curved with the curvature toward the dorsal face. Lateral 

 cephalic aiae small, terminating at the level of the middle of the 

 esophagus. Mouth with indefinite lips, provided with 2 lateral 

 groups of 3 papillae each. (Fig. 189.) Mouth cavity small, cylin- 

 drical, with thick chitinous walls, and with 3 triangular teeth 25^ 

 long. Esophagus dilated slightly in the posterior portion and ending 

 in a piriform bulb. 



Male 11.8 to 13.8 mm. long by 359/a wide. Posterior extremity in- 

 fundibular, straight, and terminating in a short appendix. Cloacal 

 aperture 211ju, from posterior end. Sucker ellipsoidal, without chi- 

 tinous wall, 135[x long; it is 296/x from the cloacal aperture. Caudal 

 alae slightly developed. There are 11 pairs of caudal papillae (fig. 

 188) arranged as follows: Three pairs of large, ventral preanal, of 

 which 1 pair is at the posterior end of the anterior third of the 

 sucker, 1 pair just behind the sucker, and 1 pair somewhat anterior 

 to the cloacal aperture ; 2 pairs of large adanal papillae ; and 6 pairs 

 of postanal papillae, of which 2 large ventral pairs are near the 

 cloacal aperture, followed by a large lateral pair and a small ventral 

 pair, and these by 2 moderately large ventral pairs near the end of 

 the tail. Spicules equal, curved, pointed posteriorly and infundibuli- 

 form anteriorly; Gedoelst writes that the end is curved in a hook; 

 they are 1.02 to 1.15 mm. long, or, according to Seurat, 1.5 mm. long. 

 Gubernaculum straight, 127 to 150/x long; Seurat says triangular and 

 175ju long. 



Female 20 to 23 mm. long by 539pi wide at the level of the vulva. 

 Tail straight or slightly bent ventrally and terminating in a small 



