File:The Danish Ingolf-expedition (1898) (14761531176).jpg

Identifier: danishingolfexpe1512dani (find matches)
Title: The Danish Ingolf-expedition
Year: 1898 (1890s)
Authors: Danish Ingolf-Expedition, 1895-1896 Wandel, C. F. (Carl Frederik), 1843-1930 Ingolf (Ship)
Subjects: Marine animals Marine animals Hydrography Hydrography Scientific expeditions
Publisher: Copenhagen, H. Hagerup
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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Text Appearing Before Image:
the ovaries being placed subsagittally and subtransversally, the testes inter-radially, after the usual ctenophoran type. The left subsagittal organ on the lower sideapparently affords an exception, the ovary being interradial, the testis subsagittal. This is,however, an abnormality, due to a revolution, perhaps the result of the egg-formation. Asseen from fig. 2, part of the ovary is in the normal place. In fig. 3 is seen the connectionbetween the transverse canal and the cavity of the right subsagittal genital organ of thelower side; in fig. 4 is seen the connection between the transverse canal and the cavityof the tentacle basis. The sections do not cut the genital organs at the same level, owingto the contraction of the animal which has made it impossible to get perfectly horizontalsections through the whole of the organs. Also the tentacle basis to the left is seen (Fig. 4)to have Ijeen cut obliquely. III1/1/1/ ExpetlU.ionen \.2. Th.MorLeJitiin . I Irrw/iJwrii . liih.IV.f.h. ir.c
Text Appearing After Image:
rjairiilla LrLsl.orna Mrls/i. Plate V, Plate V. All the figures represent sections along the sagittal plane of a grown specimen of Tjalfiellatristoiiia. in consecutive order from tlie tentacle to the apical organ; all equally enlarged: 22/j. Fig. I. Section through the tentacle-base, outside the genital organs. — 2—5. Sections through the outer (subtentacular) genital organs and the tentacle basis. — 6—8. The subsagittal (inner) genital organs appear below the outer ones (this position being partly due to the contraction of the .specimen). The tentacle basis gradually disappears inthese sections. Contemporaneous!)- the invagination over the genital organs appears. InFig. 6 the cavity of the two sides of the tentacle basis is seen to be in connection withthe gastrovascular canals. In fig. 7 the same is seen to be the case with the cavities ofthe two outer genital organs. — 9. Inside the tentacle basis. The two canals are seen to lie separately. — 10. • The two canals unit

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