. Bulletin. Science; Natural history; Natural history. 197 J POLYCHAETOUS ;\ FROM EASTERN < iNADlAS \R( n<. Myriochele heeri Malmgrcn (i ig. 2t Fauvel, 1927, pp. 10 0 711, .,, | . onymy); Wesenberg-Lund, 1950a, pp. 103 104; 1950b, p. 46. Specimens were obtained from Stations 20 and 26; length up to 22 mm, width up to mm. The body is thick throughout, and has up segments. I he anterior end is prolonged and has an anteroventral oral opening. In some specimens the cephalic segment is contracted and ihe oral opening is more anterior: there are no eyes. Setigerous segments 1-


. Bulletin. Science; Natural history; Natural history. 197 J POLYCHAETOUS ;\ FROM EASTERN < iNADlAS \R( n<. Myriochele heeri Malmgrcn (i ig. 2t Fauvel, 1927, pp. 10 0 711, .,, | . onymy); Wesenberg-Lund, 1950a, pp. 103 104; 1950b, p. 46. Specimens were obtained from Stations 20 and 26; length up to 22 mm, width up to mm. The body is thick throughout, and has up segments. I he anterior end is prolonged and has an anteroventral oral opening. In some specimens the cephalic segment is contracted and ihe oral opening is more anterior: there are no eyes. Setigerous segments 1-3 have only notopodial fascicles: thereafter parapodia are biramous. The uncini arc long handled and bifid with two teeth, arranged one above the other (Fig. 2b anil c). The notosetac arc distally multiserratcd (Fig. 2a). The posterior end terminates in two weakly de- veloped lateral lobes. A small cirrus protrudes below the anal opening. The tube is composed almost entirely of quartz grains. The species is widely distributed in Arctic boreal seas. ACKNOWLEDGMENTS This paper is contribution No. 41 from the Ira C. Darling Center for Research. Teaching and Service and contribution No. 29 from the Pacific Marine Station. The study was supported by National Science Foundation Grant GA-1405. We are grateful to John H. Dearborn and Robert C. Bullock for invaluable assistance in collection and preservation of the ma- terial while on board ship, and for other help during and after the cruise. We are also grateful to the administration of the Pacific Marine Station for allow- ing the first author time to complete the manuscript. LITERATURE CITED Figure 2. Myriochele heeri Malmgren, a. spinous notoseta from setiger 4; b, c. bifid uncinus from setiger 4. parapodia to the posterior end. The tube is com- posed almost entirely of olivine and mica. The species was previously known from the Sea of Japan, Bering Sea, Chuckchee, Kara. Barents, and White seas; also from west Africa (as Galathowen


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