. The British Tunicata; an unfinished monograph. Sea squirts; Tunicata. 22 BRITISH TUXICATA. rim open in front. The oesophagus is distinctly marked; it is a rather short constricted tube stretching from the ventral or anterior extremity of the stomach, which is a large elliptical organ, somewhat laterally compressed, tying transversely near to the bottom of the pallia! cavity, to the left wall of which it is adhe- rent. The posterior extremity of the branchial sac overlies the right side of the stomach. The intestine at its origin is nearly as wide as the stomach; it passes from the dorsal end
. The British Tunicata; an unfinished monograph. Sea squirts; Tunicata. 22 BRITISH TUXICATA. rim open in front. The oesophagus is distinctly marked; it is a rather short constricted tube stretching from the ventral or anterior extremity of the stomach, which is a large elliptical organ, somewhat laterally compressed, tying transversely near to the bottom of the pallia! cavity, to the left wall of which it is adhe- rent. The posterior extremity of the branchial sac overlies the right side of the stomach. The intestine at its origin is nearly as wide as the stomach; it passes from the dorsal end of that organ, and, bending. FIG. 31.—Biliary ducts in Corellaparallelogramnm. x. about 30. (Kechicecl one-half from drawing made with 1 inch object-glass.) backwards and downwards, courses along the lower mar-gin of the stomach at the bottom of the pallial chamber; it then passes up the ventral margin in a straight line adherent to the branchial sac until it reaches the cloaca situated at the base of the exhalant tube, where, contracting a little, it terminates. The anal orifice is bordered with a smooth, wide, reflected, lobed rim. The mucous membrane lining the stomach is thick and is thrown into strong, mostly longitudinal wrinkles, which are arranged with some degree of 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
