. A junior course of practical zoology. Zoology. TRANSVERSE SECTIONS 99 2. The visceral mass is cut across close to its posterior end, and hence is much smaller than in the previous sec- tion : it is occupied almost entirely by the generative Fio. 21.—^Anodonta cygnea. Transverse section of the animal passing through the middle of the length of the ventricle, The cavity of the heart is dotted, (a. u. m.) A, shell. ATT, left auricle. B, ligament. BC, branchial cavitj. F, toot. I, intestine. IQ-, left inner gill. £, left kidney. EO, Eeber's organ. IiM, left mantle-lobe. OG, left outer gi
. A junior course of practical zoology. Zoology. TRANSVERSE SECTIONS 99 2. The visceral mass is cut across close to its posterior end, and hence is much smaller than in the previous sec- tion : it is occupied almost entirely by the generative Fio. 21.—^Anodonta cygnea. Transverse section of the animal passing through the middle of the length of the ventricle, The cavity of the heart is dotted, (a. u. m.) A, shell. ATT, left auricle. B, ligament. BC, branchial cavitj. F, toot. I, intestine. IQ-, left inner gill. £, left kidney. EO, Eeber's organ. IiM, left mantle-lobe. OG, left outer gill. PC, pericardial cavity. B, cavity of rectum. BO, genital gland, ovary or testis. BM, edge of right mantle-lobe, SG, supra-branchial canal of right outer gill. ^, typhlosole. IT, left ureter. V, wall of ventricle. V, cavity of ventricle. VC, vena cava. W, supra-branchial canal of left inner gill. X, free upper edge of the jnner lamella of the right inner gill: between this edge and the body is the slit through which the branchial cavity communicates with the supra-branchial canal of the inner gill, y, the right cerebro-osphradial connective. h2. 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 Marshall, A. Milnes (Arthur Milnes), 1852-1893; Hurst, C. Herbert (Charles Herbert), 1856?-1898, joint author. London, Smith, Elder
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1887
