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Ophiuridae of the West Indies by Leah May Gaymon, 1893

Ophiuridae of the West Indies by Leah May Gaymon, 1893, Page 7

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4 Definition of Terms In order to understand a description it is necessary to bear in mind the animal is supposed to be in its [normal?] position; that is with the mouth below, then vertically toward the roof of the disk is "upward", toward the mouth "downward"; horizontally toward the points of the arms "outward"; and horizontally toward the mouth "inward". In all [measurements?] length is in a [radial?] direction and of width is at right angles to there. The disk is divided into brachial and inter-brachial space, the former including the sectors which conta--- the a---, the latter, those which are between the -------.
 
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