. Natural history. Zoology. Fig 3.—DUGRAMATTC Oross Sfctton of Star-fish Arm. Natural Fig. -DlAGRAMATIC CROSS SkCTION OF OPHIURID Arm. Much enlarged. through a pore (GP) which is situated near the junction of two adjacent rays, and the ampullae (Amp), from which the tube-feet (P) pass through the ambulacral ossicles (AO). In the groove (A) on the under aide of the arm, formed by the ambulacral ossicles and lying between the tube-feet, there are shown the following structures : close to the surface, the radial nerve (N); below this, the radial blood-vessel (B) ; and below this again,
. Natural history. Zoology. Fig 3.—DUGRAMATTC Oross Sfctton of Star-fish Arm. Natural Fig. -DlAGRAMATIC CROSS SkCTION OF OPHIURID Arm. Much enlarged. through a pore (GP) which is situated near the junction of two adjacent rays, and the ampullae (Amp), from which the tube-feet (P) pass through the ambulacral ossicles (AO). In the groove (A) on the under aide of the arm, formed by the ambulacral ossicles and lying between the tube-feet, there are shown the following structures : close to the surface, the radial nerve (N); below this, the radial blood-vessel (B) ; and below this again, the radial water- vessel (W). All of these give off side branches, those from the latter going to the ampullae. The arm is encased in an external skeleton of irregular limestone plates (SK); some of theae aupport spines (S), and others support. 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 Lydekker, Richard, 1849-1915; Kirby, W. F. (William Forsell), 1844-1912; Woodward, Bernard Barham, 1853-1930; Kirkpatrick, R. (Randolph), b. 1863; Pocock, R. I. (Reginald Innes), 1863-1947; Sharpe, Richard Bowdler, 1847-1909; Garstang, Walter, 1868-1949; Bather, Francis Arthur, 1863-1934; Bernard, Henry Meyners. New York, D. Appleton and company
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Keywords: ., bookauthorly, bookcentury1800, bookdecade1890, booksubjectzoology
