. Elements of zoölogy : a textbook. Zoology. Gephyrean, Phascolosoma Gouldii. secreted in some cases. The Sipunculoids and Synaptidae, formerly classed with the Holothurioids, are representatives of this group. SUB-SECTION VI. THE ORDER OF DISCOPHORA OR SUCTORIA OR LEECHES. THE Leeches are provided with a sucking disk at each extremity. The name Discophora is from the Gr. diskos, a disk, andphero, to bear. They perform locomotion either by means of these disks, or by swimming. They are found in both fresh and salt water, and are popularly known as Blood- Fig- Leech, Sanguisuga officinali
. Elements of zoölogy : a textbook. Zoology. Gephyrean, Phascolosoma Gouldii. secreted in some cases. The Sipunculoids and Synaptidae, formerly classed with the Holothurioids, are representatives of this group. SUB-SECTION VI. THE ORDER OF DISCOPHORA OR SUCTORIA OR LEECHES. THE Leeches are provided with a sucking disk at each extremity. The name Discophora is from the Gr. diskos, a disk, andphero, to bear. They perform locomotion either by means of these disks, or by swimming. They are found in both fresh and salt water, and are popularly known as Blood- Fig- Leech, Sanguisuga officinalis. suckers. A s'pecies found in Ceylon is wholly terrestrial! The mouth of the Leech is situated in the anterior. 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 Tenney, Sanborn, 1827-1877. New York : Scribner
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