. The Canadian field-naturalist. 1963 Medcof: Puzzling Clay Tubes 217. FiGXjRE 2. Penobscot Bay tubes in collection of Boothbay Harbor Laboratory of the Maine Sea and Shore Fisheries Department. No. 4 a straight thin-walled tube with angularly broken ends and uniform bore. In Nos. 5 and 6 die bore flares suddenly. In No. 7 it tapers gently. scallop bed (N. Lat. 49°04-05'; W. Long. 46°56') in Passamaquoddy Bay. These (Table 1) closely resemble the tubes found in Penobscot Bay. Recently Mr. Phillip Goggins of the Maine Department of Sea and Shore Fisheries provided measurements of the four Penob
. The Canadian field-naturalist. 1963 Medcof: Puzzling Clay Tubes 217. FiGXjRE 2. Penobscot Bay tubes in collection of Boothbay Harbor Laboratory of the Maine Sea and Shore Fisheries Department. No. 4 a straight thin-walled tube with angularly broken ends and uniform bore. In Nos. 5 and 6 die bore flares suddenly. In No. 7 it tapers gently. scallop bed (N. Lat. 49°04-05'; W. Long. 46°56') in Passamaquoddy Bay. These (Table 1) closely resemble the tubes found in Penobscot Bay. Recently Mr. Phillip Goggins of the Maine Department of Sea and Shore Fisheries provided measurements of the four Penobscot Bay tubes shown in Figure 2 and described as Nos. 4 to 7 in the Table. One of these (No. 7) is peculiar in its gently tapered form but in both size and form the other three are like those I collected there thirteen years ago. Capt. Wooster told me that when he first fished scallops in Penobscot Bay he used to find clay tubes up to two feet long and not infrequently branched. He thought the small sections we found were parts of longer tubes that had been broken by fishermen constantly dragging scallop gear over the bottom. He took this as evidence that tubes are not being formed now or are being formed at a very slow rate. What are they? The similarity of the clay tubes taken from these three widely spaced Atlantic inshore areas suggests that they have similar origins. But what are they? I have had them examined by many palaeontologists and zoologists. None have seen anything quite like them and none know what they are. How- ever, we have some interesting 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 Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club
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