Archive image from page 107 of The Danish Ingolf-Expedition (1918). The Danish Ingolf-Expedition danishingolfexpe0507ingo Year: 1918 IOO HYDROIDA II Sertularella amphorifera Allman. 1877 Sertularella amphorifera, Allman, Hydroida of the Gulf Stream, p. 22, pi. 15, figs. 8—10. 1912 Sertularella amphorina, Bedot, Materiaux pour servir a l'histoire des Hydroides, 4™ periode, p. 352. Upright slender colonies with monosiphouic hydrocaulus. Stem and main branches slightly prominent. The basal part of the stem is straight, irregularly segmented, without hydrothecse and branches; higher up, it becom
Archive image from page 107 of The Danish Ingolf-Expedition (1918). The Danish Ingolf-Expedition danishingolfexpe0507ingo Year: 1918 IOO HYDROIDA II Sertularella amphorifera Allman. 1877 Sertularella amphorifera, Allman, Hydroida of the Gulf Stream, p. 22, pi. 15, figs. 8—10. 1912 Sertularella amphorina, Bedot, Materiaux pour servir a l'histoire des Hydroides, 4™ periode, p. 352. Upright slender colonies with monosiphouic hydrocaulus. Stem and main branches slightly prominent. The basal part of the stem is straight, irregularly segmented, without hydrothecse and branches; higher up, it becomes regularly segmented, like the branches, with a hydrotheca on the distal part of each internodium. The branches arise in irregular alternation, and may themselves again ramify; like the hydrotheca-bearing part of the main stem, they are bent zigzag fashion. The hydrothecse are large, cylindrical, slightly curved, with three equal sized, markedly prominent teeth, and in the sinuses between them three large triangular lid plates. The hydrotheca is attached to the branch by a narrow base. The polyp has a distinctly prominent abcauline blind sack. The gonothecse proceed from below the base of the hydrothecse. They are a slender oval to pear-shaped, with a distally central narrow neck, and distinct transverse furrows; the neck passes evenly over into the gonotheca. Material: LIII. Sertularella amphorifera from 'Ingolf St. 54. . Part of a branch (X 20). i-drotheca of the stem with the basis of a branch (X 40). 'Ingolf' St. 7, 63°i3' N\ i5°4i' W.; depth 600 fathoms, 4,5° - 54, 63°o8' N, i5°4o' W.; - 691 3,9° Nutting (1904 p. 88) who had only some fragments of All man's type specimen to work on, states that Sertularella amphorifera has possibly four hydrothecal teeth, and he gives some drawings where four such teeth are markedly in evidence, as if his specimen had been intact, and not, as he himself expressly notes in the text, defective. Billard (1906 p. 183) on the oth
Size: 1591px × 1257px
Photo credit: © Bookive / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 1900, 1910, 1918, americana, archive, arctic_ocean, biodiversity, blc, book, bookauthor, bookcentury, bookcollection, bookcontributor, bookdecade, bookpublisher, booksubject, bookyear, copenhagen_h_hagerup, danish_ingolf_expedition_1895_1896_, drawing, historical, history, illustration, image, ingolf_cruiser_, mblwhoi, mblwhoi_library, page, picture, print, reference, scientific_expeditions, vintage
