. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 116 Mr. H. A. Baylis on a ova; while the branches on the outer sides appear normal. h\ younger segments the finger-shaped lobes of the inner halves of the two ovaries are in close contact and somewhat confused. As regards the female apparatus the condition in most of the segments of this worm is similar to that normally found in certain genera of cestodes (Dipylidium, Momezia, Gitto- tivnta, to mention only a few well-known examples), but. Gravid segment of Tcenia saginata, sh
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 116 Mr. H. A. Baylis on a ova; while the branches on the outer sides appear normal. h\ younger segments the finger-shaped lobes of the inner halves of the two ovaries are in close contact and somewhat confused. As regards the female apparatus the condition in most of the segments of this worm is similar to that normally found in certain genera of cestodes (Dipylidium, Momezia, Gitto- tivnta, to mention only a few well-known examples), but. Gravid segment of Tcenia saginata, showing abnormal, bilaterally symmetrical arrangement of the genital organs. P., P., the two genital pores, from which the two vaginse, V., V., lead to two shell-glands, S., S. From these the main stems (Ut., Ut.) of the two uteri extend forward parallel to each other. unknown in Tcenia. Were T. saginata not well known to be a variable species, such a peculiarity might have been con- sidered sufficient ground for creating not merely a new species but even a new genus. There can, however, be no question of this kind in this case, for two reasons. In the first place, the strobila is not entirely composed of double segments, but here and there we find a normal segment with a single pore and median uterus. In the second place, the reduplication extends also to the male organs—not only to the ducts, but. 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 London, Taylor and Francis, Ltd
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