. Bulletin - United States National Museum. Science. 368 BULLETIN 140, UNITED STATES NATIONAL MUSEUM (life history) and see also E. ignotus, p. 371), according to Jaeger- skiold and to Ciurea. (Location.—Intestine. Morphology.—Eustrongylides (p. 367) : The middle of the worm is much thickened, the extremities are slenderer, the anterior por- tion longer and slenderer than the posterior. The 6 papillae near the mouth (fig. 4276) very small and those outside of these are larger but inconspicuous. Cuticle grossly annulated, the annulation almost disappearing in the middle portion of the body. The


. Bulletin - United States National Museum. Science. 368 BULLETIN 140, UNITED STATES NATIONAL MUSEUM (life history) and see also E. ignotus, p. 371), according to Jaeger- skiold and to Ciurea. (Location.—Intestine. Morphology.—Eustrongylides (p. 367) : The middle of the worm is much thickened, the extremities are slenderer, the anterior por- tion longer and slenderer than the posterior. The 6 papillae near the mouth (fig. 4276) very small and those outside of these are larger but inconspicuous. Cuticle grossly annulated, the annulation almost disappearing in the middle portion of the body. The mouth aperture is usually triangular, but may be 6-angled and give the impression of being round. The mouth cavity is triangular in cross- section and is 100 to 160/x, long. Male 34 mm. long by 2 mm. wide. Bursal cup (fig. 427«) trumpet- shaped, its margin with 2 incisions on the ventral 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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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience