. The canals in the tentacular lappets (Fig. lo) are few in number, 5-6 only, and very broad and strong. They have a different form of ramification to that figured by Maas {he. cit). The middle ones run parallel, and are mostly branched centrifugally in the distal parts; the lateral canals are only branched laterally outwards through their whole length. The tentacles always arise between the origins of the canals into the lappets. The stomach is 45 mm. in diameter and relatively large, and shows a network ("Tafelung") on the surface of the subumbrella. The colour of the muscles and t
. The canals in the tentacular lappets (Fig. lo) are few in number, 5-6 only, and very broad and strong. They have a different form of ramification to that figured by Maas {he. cit). The middle ones run parallel, and are mostly branched centrifugally in the distal parts; the lateral canals are only branched laterally outwards through their whole length. The tentacles always arise between the origins of the canals into the lappets. The stomach is 45 mm. in diameter and relatively large, and shows a network ("Tafelung") on the surface of the subumbrella. The colour of the muscles and tentacles is greenish yellow. The canals in the lappets are whitish and dis- tinctly visible in the com- pletely transparent jelly. The locality in which this specimen was found is remarkable; for South Georgia is sub-Antarctic, and the species is said to be found only in Antarctic waters. Desmonema chierchiana, Vanhoeffen (Fig. 11) St. WS 89. 7. iv. 27. Between the Falkland Islands and Patagonia. Large otter trawl, 28-21 m. One badly damaged specimen without tentacles or mouth arms; gonads feebly developed; the margin of the bell is well preserved. The exumbrella is flat and smooth. The jelly is here much harder and more resistant than in the preceding specimen. On the lappets there are many fine longitudinal radial ribs or warts. The medusa, lying on its back in a basin with the margin of the umbrella folded inwards, shows very clearly sixteen radial furrows on the periphery of the ex- umbrella. The diameter of the bell, with the margin turned outwards, measures ±180 mm. in diameter, and turned inwards ±140 mm. The tentacular lobes are 35-40 mm. in breadth and 20-25 mm. in length. The ocular lobes are of the same length or a little shorter, but much narrower, being only ±15 mm. broad. There is no sharp indentation between the tentacular and the ocular lobes. The tentacular ones are bluntly rounded, and more irregularly bordered, with a round incision in the middle (see Fig.
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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
