. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. 18 ACTIN'IARIA othiT p*itii it »how« distinct teiulencv to irrejiular stratifiiation in ^ .rf very small (fifl. IT)). iiiul contains rather it curvinl and proliuMy ... L _ ios of the tiMitai-U's and â¢{ thf orul di«c are ectotleriiial and ordinarily 1 of the actinopharynx is of onlinary iriiiliiial folds su[>]>ortd by out-shoots 111 the lowest part of the â ts of which probably arc â¢t*. The nu'«t)gloca of the actino[>harynx is thin ex- â¢â ' ' â 1 in the siphonoglyph. ire num
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. 18 ACTIN'IARIA othiT p*itii it »how« distinct teiulencv to irrejiular stratifiiation in ^ .rf very small (fifl. IT)). iiiul contains rather it curvinl and proliuMy ... L _ ios of the tiMitai-U's and â¢{ thf orul di«c are ectotleriiial and ordinarily 1 of the actinopharynx is of onlinary iriiiliiial folds su[>]>ortd by out-shoots 111 the lowest part of the â ts of which probably arc â¢t*. The nu'«t)gloca of the actino[>harynx is thin ex- â¢â ' ' â 1 in the siphonoglyph. ire numerous, but owing to the bad preserv- ⢠ruction of the Ixxly I have not been able ⢠r exactly. In the more closely examined »i>ecuuen there wen- alwut 29(1 mesenteries at the linibus, tiO pairs, iwrhaps a few more but very small, in the aboral end of the actino- pharvnx and probably 17(H.*«1 mesenteries, as there are so many t.' â distjd part of the bo»ly. The specimen had only 1,1. iir. In the lowest part of the actinopharynx 12 |»air» were |H'rt»ft. in the distal part also some of the third cycle. Often one mesentery of this cycle seems to be perfect, its partner imperfect. Also the 12 first pairs are unequally developed as to t! rs. In the other s|)ecimen (PI. Ill fig. 8) about 60 pairs *. t in the nuddle of the actiiiopharynx-region, 23 pairs were |NTl'ect and one j)air consisting of one perfect and one im- perfect Here two directive pairs, asymmetrically situ- ated, have been develojHHl. Only 7 non-directive pairs were present l)etween the both directives on the one side. Owing to bad preserv- ation it i-s, however, difficult to give an exact statement of the ar- T. .All perfect mesenteries and a part of the imperfect rovided with well developeil retractors occupying the middle of the mesenteries. In the uppermost part the retractors, eapeciallv those of the directives, were more concentrated and approached the actino
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
