. Bulletin - United States National Museum. Science. 53 V_^_/- 54 Figs. 53-55.—Pandocia ovata (Pizon). 53, Left and right sides of body. X .65. 54, Dorsal tubercle. X 8. 55, Gonad. Side next to branchial sac. X 25. five, orders quite regularly arranged, the smallest generally crossing the Internal longitudinal vessels stout; their distribution in the largest specimen is about as follows: Right side: dorsal 4 (11) 5 (14) 6 (19) 5 (14) 4 ventral. Left side: dorsal 4 (10) 5 (15) 5 (IS) 5 (13) 4 ventral. They are rather irregularly spaced; in general there are 8 or 10, sometimes 12, sti


. Bulletin - United States National Museum. Science. 53 V_^_/- 54 Figs. 53-55.—Pandocia ovata (Pizon). 53, Left and right sides of body. X .65. 54, Dorsal tubercle. X 8. 55, Gonad. Side next to branchial sac. X 25. five, orders quite regularly arranged, the smallest generally crossing the Internal longitudinal vessels stout; their distribution in the largest specimen is about as follows: Right side: dorsal 4 (11) 5 (14) 6 (19) 5 (14) 4 ventral. Left side: dorsal 4 (10) 5 (15) 5 (IS) 5 (13) 4 ventral. They are rather irregularly spaced; in general there are 8 or 10, sometimes 12, stigmata between them on the intervals between folds, but along the median dorsal vessel and endostyde 15 or more. Intestine of large diameter but forming a rather compact rounded loop within which a very large endocarp is situated. Stomach short and rounded, without conspicuous plications and with a poorly de- veloped pyloric caecum. Rectum abruptly bent forward; rather short; margin of anus with only very rudimentary yet numerous lobes. Gonads of the typical Pandocia type. Each a very small oval or rounded sac with a very short neck, containing a central mass of eggs bordered by a varying but not very large number of pyriform male glands whose ducts converge on the unattached side of the gonad toward the base of a papilla situated beside the neck of the gonad. They unite and discharge by a common orifice at the summit of this. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.


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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience