. Discovery reports. Discovery (Ship); Scientific expeditions. 384 DISCOVERY REPORTS parent, tough, and traversed by a network of thick fibres. The body is elongate-ovoid, the head very narrow and the eyes, as usual, closely set on the dorsal surface, and very prominent. The arms were probably subequal; but they are badly damaged. They attain a maximum of 67 per cent of the total length. The suckers are uniserial and widely spaced (about 14 mm. apart at the widest). The ends of the arms are damaged, but the suckers seem to have been alternating towards the tips. At about the thirteenth they be
. Discovery reports. Discovery (Ship); Scientific expeditions. 384 DISCOVERY REPORTS parent, tough, and traversed by a network of thick fibres. The body is elongate-ovoid, the head very narrow and the eyes, as usual, closely set on the dorsal surface, and very prominent. The arms were probably subequal; but they are badly damaged. They attain a maximum of 67 per cent of the total length. The suckers are uniserial and widely spaced (about 14 mm. apart at the widest). The ends of the arms are damaged, but the suckers seem to have been alternating towards the tips. At about the thirteenth they become much larger. They are of a very simple structure and very thin walled. Except in Melanoteiithis I have never seen such an undifferentiated type. There must. Fig. 11. Amphitretus thielei. Inferior mandible. (The pigmented streaks on , , \ ^ c . /•^\ 1 ., , , . ,, have been about rorty (.'') on each arm. one side have been omitted.) J \ J The web is about half as deep as the arms and may have been subequal. The funnel is, as usual, adherent to the cephalic tissues, and extends well beyond the eyes. Its organ is large and broadly W-shaped. There is no trace of a valve. The gills have seven to eight filaments in each demibranch. They are long and narrow and the inner demibranch is very much reduced, being but half as deep as the other. The mandibles are very weak and imperfectly chitinised. They are not so much splayed. 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 Institute of Oceanographic Sciences (Great Britain); National Institute of Oceanography; Great Britain. Colonial Office. "Discovery" Committee. London, New York, Cambridge University Press
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscientificexpedition
