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"Diagrams of bladder-worms. I. The ordinary Cysticercus type with one head (H.). II. The Coenurus type, with many heads. III. The Echinococcus type, with many heads, and with brood capsules producing many heads." -Thomson, 1916

Bladder-Worms

"Diagrams of bladder-worms. I. The ordinary Cysticercus type with one head (H.). II. The Coenurus type,…