. Elementary text-book of zoology [electronic resource]. Zoology. 190 ANNUL AT A. ARENICOLA. SEGMENTS. APPENDAGES. NERVOUS SYSTEM. EXCRETORY SYSTEM. APERTURES. GILLS. Prostomiuni. Brain. Mouth. Peristomiumi Nerve Otocyst. 2 Parapodia. 3 4 Nephridiumi Nephridio- 5 ti 2 pore I 6 3 n 2 7 4 " 3 8 ti 5 4 Gill I 9 11 6 5 II 2 lO ir 6 " 3 II " Nerve cord. ,1 4 12 M " 5 13 11 ,1 6 H " 7 15 ,1 8 16 1, 9 17 It 10 18 11 II 19 n 12 20 " 13 Tail, &c. Anus. III.—HIRUDO. Phylum Annulata. Sub-Phylum - . . Annelida. Class PIirudinea. Fig. 115.—The Medicinal Leech. (Hivjtdo med
. Elementary text-book of zoology [electronic resource]. Zoology. 190 ANNUL AT A. ARENICOLA. SEGMENTS. APPENDAGES. NERVOUS SYSTEM. EXCRETORY SYSTEM. APERTURES. GILLS. Prostomiuni. Brain. Mouth. Peristomiumi Nerve Otocyst. 2 Parapodia. 3 4 Nephridiumi Nephridio- 5 ti 2 pore I 6 3 n 2 7 4 " 3 8 ti 5 4 Gill I 9 11 6 5 II 2 lO ir 6 " 3 II " Nerve cord. ,1 4 12 M " 5 13 11 ,1 6 H " 7 15 ,1 8 16 1, 9 17 It 10 18 11 II 19 n 12 20 " 13 Tail, &c. Anus. III.—HIRUDO. Phylum Annulata. Sub-Phylum - . . Annelida. Class PIirudinea. Fig. 115.—The Medicinal Leech. (Hivjtdo mediciimlis).. The more tapering end is anterior. The centre individual is seen in the action of 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 Masterman, Arthur Thomas; Parsons, John Herbert, Sir, 1868-1957, donor; S. H. Lazarus (Firm); University College, London. Library Services. Edinburgh : E. & S. Livingstone
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1901
