Archive image from page 62 of The Danish Ingolf-Expedition (1921). The Danish Ingolf-Expedition danishingolfexpe0509ingo Year: 1921 ACTINIARIA 55 Occurrence: Norway Finmark (Goes and Malmgren) 5 sp. Tromso aofms. (Goes and Malmgren 3 sp. littoral (Kier) 3 sp. Exterior aspect: The physa is anipuUaceous in extended state and perforated by apertures, the number of which I have not been able to determine with certainty. In a specimen I observed such apertures in 7 compartments. Probably they are arranged in a ring round a central aperture. The specimen from Finmark, mentioned by myself as
Archive image from page 62 of The Danish Ingolf-Expedition (1921). The Danish Ingolf-Expedition danishingolfexpe0509ingo Year: 1921 ACTINIARIA 55 Occurrence: Norway Finmark (Goes and Malmgren) 5 sp. Tromso aofms. (Goes and Malmgren 3 sp. littoral (Kier) 3 sp. Exterior aspect: The physa is anipuUaceous in extended state and perforated by apertures, the number of which I have not been able to determine with certainty. In a specimen I observed such apertures in 7 compartments. Probably they are arranged in a ring round a central aperture. The specimen from Finmark, mentioned by myself as (1893, p. 16), belongs to The scapus is provided with a thin periderm in which there are ochreous-coloured incrustations. The nemathybomes are ver>' small, but numerous and scattered. The sea- • x?-, pus seems to be smooth, because X \ the nemathybomes only rise a little or not at all over the sur- face, in contracted as well as in expanded individuals. The proxi- mal part of the scapus is almost round, the distal part polygonal, probably on account of the con- traction. The capitulum is short. The number of the tentacles va- ries considerably. Of 5 examined specimens one had 16, two 22, one 23 and one 26 tentacles, ar- ranged in two or three cycles. The oral disc is small, the actinopha- rynx short. A ventral siphonogly- phe is present. Anatomical descrip- tion: The nematocysts of the physa are 12—14 fi in length. The apertures are surrounded by cir- cular muscles. The numerous ne- matocysts of the nemathybomes vary considerably in size, they are commonly 31-44 ,« long, sometimes shorter, down to 26 f., sometimes longer, unto 62 ;.. The ectoderm of the capitulum is rather thick, with sparse nematocysts, 10-12 long. The high ectoderm of the tentacles contains numerous nematocysts ( -3 i) andspirocysts (14-17 /. long). The ectodermal longitudinal muscles of the tentacles are rather well- developed. The ectoderm of the actinopharynx is high and pro
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Keywords: 1920, 1921, archive, arctic_ocean, book, bookauthor, bookdecade, bookpublisher, booksponsor, booksubject, bookyear, copenhagen_h_hagerup, danish_ingolf_expedition_1895_1896_, drawing, historical, history, illustration, image, ingolf_cruiser_, mblwhoi_library, page, picture, print, reference, scientific_expeditions, vintage, zimmermann_a_albrecht_b_1860
