Archive image from page 76 of The Danish Ingolf-expedition (1898). The Danish Ingolf-expedition danishingolfexpe1517dani Year: 1898 HYDROIDA II /I The gonothecse are attached to the apophyse beside the sessile sareotheca. Fully grown gon- angia have not yet been found. Material: 'Ingolf' St. 27 64°54' N., 55°io' W., depth 393 fathoms 3,8° - 34, 65°i7' N, 54°i7' W., - 55 Greenland: Davis Strait (without further details) [type specimens of Phimiliaria groenlandica]. Iceland: Ingolfshofdi 972 miles in N. by E. I/2 E., depth 53 fathoms. Lev ins en (1893 p. 63) gives a very detailed description of
Archive image from page 76 of The Danish Ingolf-expedition (1898). The Danish Ingolf-expedition danishingolfexpe1517dani Year: 1898 HYDROIDA II /I The gonothecse are attached to the apophyse beside the sessile sareotheca. Fully grown gon- angia have not yet been found. Material: 'Ingolf' St. 27 64°54' N., 55°io' W., depth 393 fathoms 3,8° - 34, 65°i7' N, 54°i7' W., - 55 Greenland: Davis Strait (without further details) [type specimens of Phimiliaria groenlandica]. Iceland: Ingolfshofdi 972 miles in N. by E. I/2 E., depth 53 fathoms. Lev ins en (1893 p. 63) gives a very detailed description of this species, which he incorrectly regards as different from Sars's Plumularia gracillima. He has however, in common with others who 20om. _ _ . 600 m. ._ iooom. 2000m. Fig. XXXV The localities of Polynemertesia gracillima in the Northern Atlantic. In the hatched region the occurrence according to the literature is common, although scattered. have investigated the species, overlooked its typical sessile sareotheca on the apophyses (fig. XXXIV) It is noticeable that a mamelon occurs not only on the primary but on all the apophyses in the colony. The idea that it should, as Nutting (1900) believes to be the case with other species, form the point of origin of the gonothecee, is due to inadequate investigation; the gonothecse have their point of attachment by the side of this sareotheca. Levinsen's description incorrectly gives the impression that he has had grown gonothecse before him at the time; they are, however, only quite young stages, and grown gonangia have thus not been described for this species. Polynemertesia gracillima is plainly a southern visitor to the northern waters, and has strangely enough not yet been recorded in the British waters (fig. XXXV). The 'Ingolf was able to furnish
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Keywords: 1890, 1898, archive, book, bookauthor, bookdecade, bookpublisher, booksponsor, booksubject, bookyear, copenhagen_h_hagerup, danish_ingolf_expedition_1895_1896, drawing, historical, history, hydrography, illustration, image, ingolf_ship_, marine_animals, page, picture, print, reference, scientific_expeditions, smithsonian_libraries, vintage, wandel_c_f_carl_frederik_1843_1930, zimmermann_a_albrecht_b_1860
