. Bulletin. Science; Natural history; Natural history. cm 21 , 3| ,41 , 51. Fig. 5. a: Cluster of small seed-barnacles up to 5 mm in diameter. The white pigment transformation of dermis suggests that feeding by cyamids has commenced, b: Barnacles, 10-15 mm in diameter with calcareous parapets. The only large cyamid among these barnacles is Cyamus ceti. c: Feeding assem- blage composed of at least eleven C. ceti and five C. scammoni. a, b, and c are the same scale. Photograph c by Terri Hoban (LACM-54544). various parts of the gray whale may range in size from "seed" barnacles,
. Bulletin. Science; Natural history; Natural history. cm 21 , 3| ,41 , 51. Fig. 5. a: Cluster of small seed-barnacles up to 5 mm in diameter. The white pigment transformation of dermis suggests that feeding by cyamids has commenced, b: Barnacles, 10-15 mm in diameter with calcareous parapets. The only large cyamid among these barnacles is Cyamus ceti. c: Feeding assem- blage composed of at least eleven C. ceti and five C. scammoni. a, b, and c are the same scale. Photograph c by Terri Hoban (LACM-54544). various parts of the gray whale may range in size from "seed" barnacles, 3-10 mm in diameter (Figs. 5a, b, 8, and 9), to mature ones, 40-60 mm in diameter (Fig. 6a). The external anatomy of a mature barnacle is shown in Figure lb. There are two major regions: one composed of six over-lapping plates forming the shell or parapet; and a second containing the opercular valves consisting of two scutae and two terga (Fig. lb). The expanded and fluted basal portion of each of the six plates form the basis, and the primary attachment region of most cirripeds. In its dorsal aspect, the barnacle resembles a six-pointed star with a circle in its center. It is elliptical in cross-section. As in most cirripeds, the free-swimming cypris larva is the stage during which. 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 Southern California Academy of Sciences. Los Angeles, Calif. : The Academy
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Keywords: ., bookcentury1900, booksubjectnaturalhistory, booksubjectscience
