Carpenter, William Benjamin, 1813-1885 · London : John Churchill · leaf 647
athas been usuallyconsidered as an Qggis really an egg-capsule containingseveral embryoeswith a store of sup-plemental yolk, asin Fwjmra (§ 351),which yolk is swal-lowed by the em-bryoes at a veryearly period of theiidevelopment vdthinthe capsule. Aftertheir emersion fromthe capsule, theembryoes… … Stnicture of Folycelis levigatus (a Planarianworm):—a, mouth, surrounded by its circularsucker; h, buccal cavity; c, oesophageal orifice;d, stomach; e, ramifications of gastric canals ;/, cephalic ganglia and their nervous filaments;g,g, testes; h, vesicula seminalis; i, male genitalcanal; k, k,…
Microscopy
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