Elementary text-book of zoology, general Elementary text-book of zoology, general part and special part: protozoa to insecta elementarytextbo00clau Year: 1892 Fig. 274 J.—Larva of a Bothrin- cephalus from the Smelt (after R. Leuckart). Via Vo —Geaerattve orf^ins f a sexuilly mature proglottis of Bothriocephalus lutus (after feommor and R Leuckarl) a from tho ventral surface, i, from the dorsal surface. Ov and r o\ary, Ut, nleras . SJ, shell „1 n 1, Dsf, vitellarium (yolk gland); Va, vagina with opening; T, testis ; Cb, pouch of the cirrus ; Fif, vas deferens. of the long axis of the segmen
Elementary text-book of zoology, general Elementary text-book of zoology, general part and special part: protozoa to insecta elementarytextbo00clau Year: 1892 Fig. 274 J.—Larva of a Bothrin- cephalus from the Smelt (after R. Leuckart). Via Vo —Geaerattve orf^ins f a sexuilly mature proglottis of Bothriocephalus lutus (after feommor and R Leuckarl) a from tho ventral surface, i, from the dorsal surface. Ov and r o\ary, Ut, nleras . SJ, shell „1 n 1, Dsf, vitellarium (yolk gland); Va, vagina with opening; T, testis ; Cb, pouch of the cirrus ; Fif, vas deferens. of the long axis of the segment on the dorsal surface and divides into two side branches. These receive the efferent canals of the delicate testicular sacs, which occupy the lateral parts of the middle layer (7). The female genital opening (fig. 275 a) leads into a vagina (Fa) situated behind the pouch of the cirrus, and frequently filled with semen. This vagina runs as a tolerably 22
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