. The British Tunicata; an unfinished monograph. Sea squirts; Tunicata. ANATOMY AND PHYSIOLOGY. 43 lower rows, and downwards for the two upper rows/' If tin- heart in the first instance threw the blood into, instead of drawing it from, the gill, the reversal of this motion would take place; namely, the flow in the secondary vessels above the point indicated would be upwards, and downwards below it. Such are the characters of the branchial sac as seen to exist in A. venosn. The minute network, however, is not continuous throughout the whole organ, but is interrupted in such a manner as to show
. The British Tunicata; an unfinished monograph. Sea squirts; Tunicata. ANATOMY AND PHYSIOLOGY. 43 lower rows, and downwards for the two upper rows/' If tin- heart in the first instance threw the blood into, instead of drawing it from, the gill, the reversal of this motion would take place; namely, the flow in the secondary vessels above the point indicated would be upwards, and downwards below it. Such are the characters of the branchial sac as seen to exist in A. venosn. The minute network, however, is not continuous throughout the whole organ, but is interrupted in such a manner as to show that it is composed of two lateral lobes or lamina?. It is divided along the dorsal line by two parallel folds of the lining membrane, which are separated by a deep groove; the tissue at the base of each fold is stiffened by a flattened rod of a somewhat rigid, opaque, yellowish substance, which together form the endostyle, that lies, as it were, in the bottom of the groove, along which the FIG. 5. FIG. 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 Alder, Joshua, 1792-1867; Hancock, Albany, 1806-1873; Hopkinson, John, 1844-1919; Norman, Alfred Merle, 1831-1918; Embleton, Dennis, 1810-1900. London, Printed for the Ray society
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Keywords: ., bookcentury1900, bookdecade1900, bookpubli, booksubjectseasquirts
