. Elements of zoölogy : a textbook. Zoology. 380 AKTICULATA: WORMS. The Gephyrea are cylindrical in outline, and covered mainly by a soft integument; though chitinous matter is FIG. 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 thes
. Elements of zoölogy : a textbook. Zoology. 380 AKTICULATA: WORMS. The Gephyrea are cylindrical in outline, and covered mainly by a soft integument; though chitinous matter is FIG. 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- 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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