. Bulletin - United States National Museum. Science. NEMATODE PARASITES OF BIRDS THELAZIA CAMPANULATA (Molin, 1858) Railliet and Henry, 1910 313 Synonyms.—Filaria oami'panulata Molin, 1858; Filaria falco-nis magnirostns Molin, 1858. Hosts.—Primary: Falco magnirostris (Rupornis m/ignirostris); secondary: Unknown. Location.—Under nictitating membrane. Morphology.—Thelazia (p 311) : Anterior extremity of body atten- uated, obtuse. Cuticular surface annulated, the annulations compan- uliform and imbricated. Buccal cavity (fig. 374a) 17 to lit*, deep, according to Travassos, by 28 to 35/* wide. Eso
. Bulletin - United States National Museum. Science. NEMATODE PARASITES OF BIRDS THELAZIA CAMPANULATA (Molin, 1858) Railliet and Henry, 1910 313 Synonyms.—Filaria oami'panulata Molin, 1858; Filaria falco-nis magnirostns Molin, 1858. Hosts.—Primary: Falco magnirostris (Rupornis m/ignirostris); secondary: Unknown. Location.—Under nictitating membrane. Morphology.—Thelazia (p 311) : Anterior extremity of body atten- uated, obtuse. Cuticular surface annulated, the annulations compan- uliform and imbricated. Buccal cavity (fig. 374a) 17 to lit*, deep, according to Travassos, by 28 to 35/* wide. Esophagus subcylindriT cal, 460 to GOO/i long. Male 17 mm. long by 400/t wide. Caudal extremity (fig. 3746) curved toward the ventral surface; cloacal aperture 140/* from osmm Fig. 374.—Thelazia campandlata. a, Head end ; b, male tail ; c, female tail. After Tkavassos, 1918 Seven pairs of preanal papillae and I unpaired median papilla anterior to cloacal aperture; posterior to the cloacal aperture 1 large median papilla and 3 pairs of papillae. Spicules very dissimilar and unequal, one 190/* long by 28/* wide, alate laterally at its distal extremity, the other mm. long by 7/* wide, with a slight swell- ing 640/1. from the proximal end. Female 15 to 23 mm. long by 500 to 600/* wide. Tail (fig. 371c) nearly straight, pointed. Vulva about 350/* from anterior end of body; anus 300//. from posterior end, in a specimen 23 mm. long. Life history.—Unknown; probably involves intermediate stages in other hosts. Distribution.—South America (Brazil). THELAZIA CHOLODKOWSKII Skrjabin, 1922 Hosts.—Primary: Caprimulgus europaeus; secondary: Unknown. Z o cation:—Ey e. Morphology.—Thelazia (p. 311). Male Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National Museum; Smiths
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