. Elementary text-book of zoology. TyEN/.-l. H$ Fig. 78.—T^KNIA Saginata. (After Leucicart.) There is a very thin cuticle and a rather indefinite layer of ectoderm which merges into the parenchyma. In this tissue are small calcareous bodies. The muscles are arranged in a transverse series and a scat- tered longitudinal series out- side it. In the parenchyma are found the complex repro- ductive organs. Tania, like Distomum, is hermaphrodite, _ ... and 'the sexual BepToductlve. organs are re- peated in each proglottis. They mature gradually, hence the front proglottides show an earlier stage tha
. Elementary text-book of zoology. TyEN/.-l. H$ Fig. 78.—T^KNIA Saginata. (After Leucicart.) There is a very thin cuticle and a rather indefinite layer of ectoderm which merges into the parenchyma. In this tissue are small calcareous bodies. The muscles are arranged in a transverse series and a scat- tered longitudinal series out- side it. In the parenchyma are found the complex repro- ductive organs. Tania, like Distomum, is hermaphrodite, _ ... and 'the sexual BepToductlve. organs are re- peated in each proglottis. They mature gradually, hence the front proglottides show an earlier stage than the hind ones. Those front pro- glottides which show sexual organs have male organs only. The middle ones show both sets of organs and the " ripe " hind ones show a portion of. the female organs only. The common sexual opening is found on the right side in one proglottis, on the left in another. The testis is a branched organ opening by a vas deferejis to a penis. The paired ovaries lead by ovarian ducts into a median oviduct. This oviduct first receives the opening of the sperm-duct and then passes through the shell-gland to the uterus. In the shell-gland it receives the vitelline duct from the yolk- gland. The sperm-duct opens at its other end into a seminal receptacle, a chamber in which selected portions from a single specimen, M. II. 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 Masterman, Arthur Thomas. Edinburgh, E. & S. Livingstone
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1900, bookyear1902
