. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. and oblique nodes; above a transverse joint there is an intcrnodiuni bearing one or two unpaired sarcothecse in the median line, then the highly oblique joint, and an intcrnodiuni furnished with a proximal, unpaired median sarcotheca, a large hydrotheca, and two supracalycine pairs of sarco- thecas. Of the supracalycine pairs of nematothecae, the outermost is placed on small projecting apo- physes, the inner pair arises from the internodinm on the inner side of these sarcotheca apophyses.
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. and oblique nodes; above a transverse joint there is an intcrnodiuni bearing one or two unpaired sarcothecse in the median line, then the highly oblique joint, and an intcrnodiuni furnished with a proximal, unpaired median sarcotheca, a large hydrotheca, and two supracalycine pairs of sarco- thecas. Of the supracalycine pairs of nematothecae, the outermost is placed on small projecting apo- physes, the inner pair arises from the internodinm on the inner side of these sarcotheca apophyses. All the sarcotheca; are mobile. The Indrotheca is very slightly fused with the internodium, the adcladial side has a free portion, in length equal to the hydrotheca opening or a little less, between '/j and 3/^ the length of the hydrotheca. The hydrotheca is somewhat expanded towards the opening, and is able to accomodate the contracted polyp almost entirely. The gonothecse arise from the stem or the hydrocladia close beneath the hydrotheca:. The gonotheca is oval to pear- shaped, as a rule somewhat curved, the males a little more slender than the females. The female gonothecEe have basally two sarcothecEC, which, (according to Hi neks) are lacking in the males. Material: The Faroe Islands: 6 miles N. b)- W. of Store Kalso depth 6o fathoms Deep hole at the north point of Nolso, — lOo — Boronaes 13 miles in N. 75 W. — 30 — a Fig. XXV. Plnmuliiria Cathan'na The inner pair of supracalycine sarcothecie in Phiiiui- from 6 miles N. by w. of store Kalso. , . „ ,, . ,-. -irviTN ^1 1 *i it ff. hydrothecate internode seen from lana Catharuia (fig. XXV) appears to have escaped the atten- ^^^^.^^ _ ^ ^^^ successive inter. tion of most investigators; it is probably this pair of sarcotheca: noises in side view. - - i inner pair of supracalycine sarcothecae. (X Sol which has given rise to the distal median sarcotheca so often ascribed to the species. Such median (unpaired) distal sa
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
