. Elementary text-book of zoology [electronic resource]. Zoology. Nerve-cord. Ventral Blood-vessel. a ring round the oesophagus and a ventral nerve-cord, .swollen into ganglia in each segment. Immediately behind the prostomium and placed laterally are a pair of ciliated pits which are probably sensory. Fig. 106.—Coronal Longitudinal Section of Polygordius (Highly Magnified). The sexes are separate and the testes and ovaries arise on two diagonal muscular bands intersecting the Please note that these images are extracted from scanned page images that may have been digitally
. Elementary text-book of zoology [electronic resource]. Zoology. Nerve-cord. Ventral Blood-vessel. a ring round the oesophagus and a ventral nerve-cord, .swollen into ganglia in each segment. Immediately behind the prostomium and placed laterally are a pair of ciliated pits which are probably sensory. Fig. 106.—Coronal Longitudinal Section of Polygordius (Highly Magnified). The sexes are separate and the testes and ovaries arise on two diagonal muscular bands intersecting the 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
