Archive image from page 104 of The Danish Ingolf-Expedition (1918). The Danish Ingolf-Expedition danishingolfexpe0507ingo Year: 1918 IIYDROIDA II 97 the species, with the marsupial chamber resembling that of Diphasia fallax (Johnston) and Diphasia rosacea (Linne) have led to its being frequently referred to this genus. The state of the material did not permit of a quite certain investigation of the polyps, but as far as it was possible to judge it has a quite rudimentary blind sack, which brings the species nearer to Diphasia. On the other hand, the closing apparatus is altogether of the sam
Archive image from page 104 of The Danish Ingolf-Expedition (1918). The Danish Ingolf-Expedition danishingolfexpe0507ingo Year: 1918 IIYDROIDA II 97 the species, with the marsupial chamber resembling that of Diphasia fallax (Johnston) and Diphasia rosacea (Linne) have led to its being frequently referred to this genus. The state of the material did not permit of a quite certain investigation of the polyps, but as far as it was possible to judge it has a quite rudimentary blind sack, which brings the species nearer to Diphasia. On the other hand, the closing apparatus is altogether of the same type as Sertuldrella, thus removing the species again from Diphasia. The most natural thing would doubtless be to consider Scrtularella tamarisca as the type of a distinct genus, which in a certain degree forms a link between the true Scrtularia species and Dip/iasia. This would demand, however, in the first place a closer study of the structural - 2 00 m. . .boom roocm, 2ooom. Fig. LI. The distribution of Scrtularella tamarisca in the Northern Atlantic. In the hatched regions the literature notes a scattered occurrence without giving particular data. conditions of the species, and as my material is not suited to the purposes of such investigation, I have for the present refrained from establishing the new genus here. It is not altogether easy to determine with certainty the biogeographical character of the species. Scrtularella tamarisca is not a form of frequent occurrence, and is never met with in large numbers at a time; on the contrary, it is as a rule taken in single specimens, so that the species appears to be somewhat of a rarity. Further study seems to show that it is a boreal species capable of penetrating slightly into the arctic area and even more into warmer waters. Towards the north, it comes up into the White Sea, and towards the south, as we know, it penetrates into the Mediter- ranean. In the waters investigated (fig. LI) the species has not infrequently b
Size: 1847px × 1083px
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
