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Government Printing Office, Washington, Published 1907. Wraps (staple bound), 28 pp. (offprint paginated 111-132, plus two plates); 30 cm; illustrated with two plates of scientific line drawings showing the butterfish specimen, cysts, scolex, and microscopic details of the parasite. Offprint from Bulletin of the Bureau of Fisheries, Volume XXVI, 1906; Bureau of Fisheries Document No. 611, issued May 11, 1907. In acceptable condition. Grey-green textured wrappers with typographic title panel to front cover; moderate shelf wear with light overall soiling and a few small nicks and creases along edges. The covers and the first and last few leaves are split along the spine fold from the top edge down to the top staple and from the bottom edge up to the bottom staple; the pamphlet is held together only by the two staples in the central portion of the spine. Previous owner's ink stamp at head of front cover, a faint institutional stamp to upper left, and a small pencil notation in the upper margin. Interior pages lightly toned but clean and unmarked. Plate II shows moderate orange-tan dampstaining along the top edge, with lighter toning visible at the top of Plate I.A Bureau of Fisheries scientific report by Dr. Edwin Linton documenting the cestode parasite Otobothrium crenacolle as found in the flesh of the butterfish (Poronotus triacanthus). Based on field examinations of 331 specimens collected in 1904, 1905, and 1906 from Buzzards Bay, Vineyard Sound, Woods Hole, Nomans Land, Montauk, Barnegat, and Beaufort, North Carolina, the paper traces the parasite's life history through its encysted larval stage in the butterfish to its adult stage in the spiral valve of the hammerhead shark (Sphyrna zygaena), and addresses the economic implications for the butterfish fishery and food supply.Contents: Historical account; Description of scolex, cyst and blastocyst; Distribution and number of cysts in butterfish; Details of examinations of butterfish for cysts; Habitats of the parasite; Adult stage; Encysted stage; Effect of the presence of cysts on weight of host; Life history of the parasite; Special case of butterfish and hammerhead shark; Food of hammerhead shark; Food of butterfish; Economic considerations; Problems suggested; Explanation of plates.OCLC 31844188.
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