. A manual of zoology. Zoology. Fio. 213. Fig. 214. Fig. 213.—Excretory system of Cercaria (after Albert Lang). 6, limb of bladder; ft', same with urinary concretions; cc, collecting canal; cs, canals of ventral sucker; cv, collecting vacuole; e, eye; ep, excretory pore; /, lumen of tail; os, oral sucker; vs, ventral sucker. Fig. 214.—Eggs of Dis'nmitm nodulosum (after Schauinsland). A, before de- velopment; B, later, the yolk broken down, d, yolk cells; ed, egg cell; ek, ectoderm; en, entoderm; p, pigment spot. ventral surfaces. The nervous system (fig. 215) consists of a pair of ganglia ('br
. A manual of zoology. Zoology. Fio. 213. Fig. 214. Fig. 213.—Excretory system of Cercaria (after Albert Lang). 6, limb of bladder; ft', same with urinary concretions; cc, collecting canal; cs, canals of ventral sucker; cv, collecting vacuole; e, eye; ep, excretory pore; /, lumen of tail; os, oral sucker; vs, ventral sucker. Fig. 214.—Eggs of Dis'nmitm nodulosum (after Schauinsland). A, before de- velopment; B, later, the yolk broken down, d, yolk cells; ed, egg cell; ek, ectoderm; en, entoderm; p, pigment spot. ventral surfaces. The nervous system (fig. 215) consists of a pair of ganglia ('brain') in front of (, above) the oesophagus, and longitudinal nerves leading backwards from it. The excretory organs (fig. 213) are. 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 Hertwig, Richard, 1850-1937; Kingsley, J. S. (John Sterling), 1854-1929, ed. and tr. New York, H. Holt
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1912
