. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. ACTINIARIA ol tlif im-ufilot-a, alvi'olar. Ti'iitaclos in tho iiort, conical, the inner considerably lonfjer â liter, arranuetl in 6 cycles, in number about 170 2lK) and â -' - ' : with njore or less strong niesogloeal thick- ' iilinal muscles of the tentacles and radial ⢠â¢lermal. Two well developed siphono- â¢lons. Mesenteries in 5 cycles, those of the hflh ' times not develoi)ed in all cxocoels; G pairs of iierfect ni. -â ,.. 2 pairs of directives. More numerous mesen- teries in
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. ACTINIARIA ol tlif im-ufilot-a, alvi'olar. Ti'iitaclos in tho iiort, conical, the inner considerably lonfjer â liter, arranuetl in 6 cycles, in number about 170 2lK) and â -' - ' : with njore or less strong niesogloeal thick- ' iilinal muscles of the tentacles and radial ⢠â¢lermal. Two well developed siphono- â¢lons. Mesenteries in 5 cycles, those of the hflh ' times not develoi)ed in all cxocoels; G pairs of iierfect ni. -â ,.. 2 pairs of directives. More numerous mesen- teries in the distal than in the proximal part, or at any rate not the contrarv. Retractors of the mesenteries weak, somewhat stronger ill the dir»'ctives. Parietobasihir muscles of the stronger inesen- teries, except those of the ilirectives, forming a distinct fold, (ionads in almost all mesenteries but sometimes lacking in the directives. Asexual pro|>agatioii probably absent. Neniatocysts of the column (\4 x () microbasic ;)-mastigophors, those of the tentacles partly X , , partly 1»>.9 'â :.')/!, microbasic /)-mastigophors (development stages? larger) of the actinopharynx X () )// micro- , probably tlevelopment stages), those of the fila- ments [Mirtly x 2//, basitrichs, partly (24) X microbasic |)-mastigophor8, those of the acoiitia? ( (93) X ?). Colour: Column usually pale salmon or flesh-coloured with streaks of brown in wrinkles, oral disc deep orange-lirowii with darker brown railii, tentacles salmon-brown (teste Verrili,). Dimensions of a large specimen: Longitudinal axis of the p«-dal about 5 cm, transverse axis cm. Largest height cm. Inner tentacles, in very contracted state, cm. Occurrence: E. and coast of N. America: 44° N. 58°55' W. 300 fms. Gloucester Fisheries 1878, 3 specimens, 43-20' N. 60° W
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
