. Bulletin - United States National Museum. Science. 140 BULLETIN 140, UNITED STATES NATIONAL MUSEUM PORROCAECUM PRAELONGUM (Dujardin, 1845) Baylis, 1920b Synonym,—Ascaris praelonga Dujardin, 1845. Host.—Colymhus auritus. Location.—Intestine. Morphology.—Porrocaecum (p. 135) : Body white, filiform, very elongate. Head proportionately large, 400/t wide. Esophagus mm. long by 400/* wide, followed by a ventriculus 400/* long and accompanied by a thick cecum 3 mm. long by 600/* wide, joining with the intestine. Cuticle with very conspicuous transverse stria- Fig. 204.—Purrocaecum bnsic
. Bulletin - United States National Museum. Science. 140 BULLETIN 140, UNITED STATES NATIONAL MUSEUM PORROCAECUM PRAELONGUM (Dujardin, 1845) Baylis, 1920b Synonym,—Ascaris praelonga Dujardin, 1845. Host.—Colymhus auritus. Location.—Intestine. Morphology.—Porrocaecum (p. 135) : Body white, filiform, very elongate. Head proportionately large, 400/t wide. Esophagus mm. long by 400/* wide, followed by a ventriculus 400/* long and accompanied by a thick cecum 3 mm. long by 600/* wide, joining with the intestine. Cuticle with very conspicuous transverse stria- Fig. 204.—Purrocaecum bnsicaddatum. c, Dorsal lip; b, male tail; c, egg. After, Linstow., 1884 Male 90 mm. long by 900/* wide. Tail suddenly narrowed and end- ing in a short conical point; cloacal aperture, with a large tubercule, 330/* from posterior end. Membranous caudal alae present, anterior to cloacal aperture, supported by 5 pairs of papillae. Spicules equal, 900/* long by 58/* wide. Female 154 mm. long by mm. wide. Tail straight, conical, pointed; anus 600/* from posterior end. Vulva just posterior to anterior fourth of body, 44 mm. from the head. Ovejector (?) sinuous, 45 mm. in length, divides into 2 uteri. Eggs globular, measuring 110 to 112/*, with reticulated shell. L ife Ji istory.— 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; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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