. Bulletin - United States National Museum. Science. 342 BULLETIN 140, UNITED STATES NATIONAL MUSEUM portion of body, near anus. At the beginning of the vagina, a saccular dilatation (copulatory receptaculum) which is filled with eggs in the adult worm. Eggs 33/a long by 24^ wide. Life history.—Probably similar in a general way to that of T. fissispina (p. 343). Distribution.—South America (Brazil). TETRAMERES DUBIA Travassos, 1917a Hosts.—Primary: Gallinago paraguaiae; secondary: Unknown; probably similar in a general way to that of T. fissispina (p. 343). Location.—Proventriculus. Morphology
. Bulletin - United States National Museum. Science. 342 BULLETIN 140, UNITED STATES NATIONAL MUSEUM portion of body, near anus. At the beginning of the vagina, a saccular dilatation (copulatory receptaculum) which is filled with eggs in the adult worm. Eggs 33/a long by 24^ wide. Life history.—Probably similar in a general way to that of T. fissispina (p. 343). Distribution.—South America (Brazil). TETRAMERES DUBIA Travassos, 1917a Hosts.—Primary: Gallinago paraguaiae; secondary: Unknown; probably similar in a general way to that of T. fissispina (p. 343). Location.—Proventriculus. Morphology.—Tetrameres (p. 334). Male mm. long by 85/a wide. Body (fig. 406) attenuated at the extremities, the greatest width being at the level of the esophagus. Cuticle transversely striated and with spines in the lateral fields but. Fig. 406.—Tetrameres dobia. Male. After Travassos, 1919 only at the anterior extremity; the spines are few and very small. Buccal capsule very small (6/* long by 4/* wide) ; pharynx 240/*, long; esophagus 300/* long. Anus lOOju, from posterior extremity. Tail sharply pointed with 4 pair of very small spines on the ventral surface. Spicules of very unequal dimension, measuring respectively 720/* long by 6^ wide and 64/t long by 6/* wide. Female 2 to mm. long by 1 to mm. wide. Body globular, red, with marked transverse striations and with 4 deep longitudinal furrows corresponding to the median and longitudinal lines. Buc- cal capsule barrel-shaped, 16/* long by 7/a wide. Anus 75/x from pos- terior extremity. Ovejector 420/x long, of same type as that of T. micropenis, the dilated part full of eggs. Eggs 49^ long by 35fi wide. Mature eggs (that is, containing developed embryos) show tufts of filaments at the poles; in immature eggs these are absent. 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 perfe
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
