. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. HYDROIDA II 91 Norway; now the "Ingolf lias added two new localities, the one being off the south-east point of Iceland, the other in the eastern part of Danniark Strait, at a spot where several representatives of the heat-loving deep-water fauna of the Atlantic have been found. The bathymetrical position of the species is also somewhat doubtful: up to the present it has only been found in the middle and lower parts of the littoral _» ioom. Fig. XLIX. The occurrence of Cladoc
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. HYDROIDA II 91 Norway; now the "Ingolf lias added two new localities, the one being off the south-east point of Iceland, the other in the eastern part of Danniark Strait, at a spot where several representatives of the heat-loving deep-water fauna of the Atlantic have been found. The bathymetrical position of the species is also somewhat doubtful: up to the present it has only been found in the middle and lower parts of the littoral _» ioom. Fig. XLIX. The occurrence of Cladocarpus bkuspis in the Northern Atlantic. In the hatched region the literature notes a scattered occurrence. Gen. Thecocarpus Nutting. Upright colonies with branched or unbranched main stem, the apoph)-ses bearing unbranched hydrocladia with several hydrotheca;. All sarcothecse immobile. The gonotheca: are set in a corbula formed by a metamorphosed hydrocladium; the blades of the corbula, or ribs, have each a hydrotheca near its point of origin. Nutting (1900 p. 106) attaches primary importance to the question whether the stem is mono- siphonic, a character which, even in distinction of species, is of subordinate weight; a species such as Thecocarpus myriopliyllum (Linne) occurs in northern seas not infrequently fertile with monosiphomc stem, while other colonies have a polysiphonic basal part; but it is really only in southern waters that strong colonies of this species are found with polysiphonic stems, at an>- rate a couple of feet hicrh. This feature, then, is of little or no interest from the point of view of generic distinction; on '' 12*. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Danish Ingolf-Expedition (1895-1896); Københavns universitet. Zoologisk museum. Copenhagen H. Hagerup
Size: 2067px × 1209px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
