. Bulletin. Science. TiENIOID CESTODES OP NOKTH AMERICAN BIEDS. 45 Female refroductioe oryans.—The vagina, after crossing tlie excre- tory canals, is enlarged to form a seminal receptacle (figs. 34, 3G, sem. receijt.)^ which extends inward as far as the inner end of the cirrus lOOu,. Fig. 35.—Dioechis acuminata : Sexually mature segment, horizontal section, dr., CiKKus. Ovary, v. ex., Ventral excretoey vessel, Yolk gland. The ovary (figs. 33-36, ov.) is trilobed, one lobe being anterior and median, the other two lateral; often by a division of the left lateral lobe it becomes
. Bulletin. Science. TiENIOID CESTODES OP NOKTH AMERICAN BIEDS. 45 Female refroductioe oryans.—The vagina, after crossing tlie excre- tory canals, is enlarged to form a seminal receptacle (figs. 34, 3G, sem. receijt.)^ which extends inward as far as the inner end of the cirrus lOOu,. Fig. 35.—Dioechis acuminata : Sexually mature segment, horizontal section, dr., CiKKus. Ovary, v. ex., Ventral excretoey vessel, Yolk gland. The ovary (figs. 33-36, ov.) is trilobed, one lobe being anterior and median, the other two lateral; often by a division of the left lateral lobe it becomes four-lobed. When fully developed the ovary extends. 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 Smithsonian Institution; United States. Dept. of the Interior; United States National Museum. Washington, Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off
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