. Zoology for high schools and colleges. Zoology. Pie. 431.âMouth and digestive canal of a Tadpole. A, month; S, Intestine coilea on itself ; c, liver ; d, hepatic duct; e, pancreas; /, rudimentary hind legs ; g, rectum. âAfter Gervais and van Beneden. a partition in the ventricle. Fig. 433 represents the circulatory or- gans of a tadpole, after the gills ven^cavlrrrSuurfcfe f's? pul' have become absorbed, and before P°"V ^«*"/"V'* onein in the , v^o-v^iv, (,^,Q lungs; 4, left auricle; 5, ven- the aortic arches are reduced in ^â¢^^ < 6. arterial buib; 7, branchial artery an
. Zoology for high schools and colleges. Zoology. Pie. 431.âMouth and digestive canal of a Tadpole. A, month; S, Intestine coilea on itself ; c, liver ; d, hepatic duct; e, pancreas; /, rudimentary hind legs ; g, rectum. âAfter Gervais and van Beneden. a partition in the ventricle. Fig. 433 represents the circulatory or- gans of a tadpole, after the gills ven^cavlrrrSuurfcfe f's? pul' have become absorbed, and before P°"V ^«*"/"V'* onein in the , v^o-v^iv, (,^,Q lungs; 4, left auricle; 5, ven- the aortic arches are reduced in ^â¢^^ < 6. arterial buib; 7, branchial artery and its iuternal branches; 8, number. branchial veins ; 9, aorta; 10, pul- m. â . , monary artery and irs subdivisions ihe nervous system is much in the lungs.âAfter Gervais and van as in reptiles ; but the optic lobes are rather small; the cerebrum is small. The kidneys are in many respects like those of fishes, especially sharks, as is the internal reproductive system. The ovaries are greatly enlarged during the breeding season. The sperm is usually passed to the kidney, and thence through the ureters out of the cloaca. The oviducts and ureters have a common outlet. 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 Packard, A. S. (Alpheus Spring), 1839-1905. New York, H. Holt and Company
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectzoology
