Biology of the Antarctic Seas XIII by Louis S. Kornicker

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By Louis S. Kornicker

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Published by means of the yankee Geophysical Union as a part of the Antarctic study Series.

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5'S, 59ø58'W; January 7, SPEEL individuals in AND DEARBORN: from the Ross Sea are more uniform color. Examination of Eltanin bottom photographs suggests that P. kergue lens is may use a variety of feeding postures, the filtration fan, a modified radial posture with the pinnules held in planar fashion, and the collecting bowl (Figures 6 and 7). Meyer [1973b] described these postures based on field studies of tropical comatulids. Most crinoids observed in nature feed with filtration fans and some with radial posture [Breimer, 1969; Macurda, 1973; Macurda and Meyer, 1974; Magnus, 1963, 1964, 1967; Meyer, 1973b].

5A. Carpenter, 5 a-d, pl. 1888, pp. 24451, fig. 2, Glyptometra inaequalis A. H. Clark, 1950a, pp. 243-246. M. Clark, 1966b, pp. 688690. Material examined. Sta. 1423, 1 specimen; Sta. 1691, 1 specimen; Sta. 1981, 1 specimen. Total = 3 specimens from three stations. Description. Centrodorsal a small cone with a small dorsal pole to a truncated cylinder with a flat rough dorsal pole. Cirri 26 to about 100, arranged in 10 to 21 slightly irregular columns. The specimen with the small conical centrodorsal has a bare raised area interradially.

154-156. Material examined. Description. 1888, p. 115, A. H. Clark, Sta. 1991, 1950a, coarse spines. Spines on midline of axillary. IBrls with lateral, broad, wing-like expansion, which interdigitates with adjacent IBr 1 of next arm pair. Distal edges of outer brachials with several coarse, almost webbed, spines which overlap next brachial. Axillary barely incises IBr 1. P1 short and stout with ca. 12 segments. P1 larger than P2- Distal edges of pinnulars of lower pinnules very spinous. 9 Dorsal pole flat to concave, of next rough, with spines or pitted.

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