Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 782
gans are com-bined in the same indivi-duals ; though the con-gress of two, each impreg-nating the ova of theother,seems to be generallynecessary. The ovaria, asin the Entozoa, extendthrough a large part ofthe body, their ramifica-tions proceeding from thetwo oviducts (k, Jc), whichhave a dilatation… … Structure of Polycelis levigatus (a Planarianworm).—<t, Mouth, surrounded by its circularsucker; &, buccal cavity; c, oesophageal ori-fice ; d, stomach; e, ramifications of gastriccanals; f, cephalic ganglia and their nervousfilaments; g, g, testes: />, vesicula seminalis;?, male genital…
Microscopy · Biology
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