. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. 54 HYDROIDA 11 side. The apophyses have each an unbranched hydrocladiuiii, divided by transverse joints into segments with numerous hydrotheca;. Eacli, or more rarely, every alternate iuternodium on the hydrocladium has on its distal half a hydrotheca entirely fused down its one side with the iuter- nodium, or more rarely having a low free adcauline edge. The hydrotheca-bearing internodia are also distally furnished with a median pore, proximally with a median pore having raised edges, thr
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. 54 HYDROIDA 11 side. The apophyses have each an unbranched hydrocladiuiii, divided by transverse joints into segments with numerous hydrotheca;. Eacli, or more rarely, every alternate iuternodium on the hydrocladium has on its distal half a hydrotheca entirely fused down its one side with the iuter- nodium, or more rarely having a low free adcauline edge. The hydrotheca-bearing internodia are also distally furnished with a median pore, proximally with a median pore having raised edges, through which the naked sarcostyles pass. The length of the hydrotheca varies between '/^ and '/s of that of the internodium. The gonothecte are situated on the stem or on the basal parts of the hvdrocladia, without. Fig. XXII[. The distribution of Kirchenpmtoia pinnata in the Northern Atlantic. In the hatched regions a common occurrence is stated by the hterature. special protective organs. They are oval to pear-shaped, smooth or .spiny, often much flattened from the side. Forma iypica. Short internodia with hydrotheca; in length from '/j to '/^ the internodium. Forma eleganhda (G. O. Sars) slender internodia with small h>drothec£e, length as a rule from Vs to '/s of the internodium. Material (forma iypica): Greenland? (without further details). The Faroe Islands: (without further details) |= Pbi),mlaria ccJiinulala Winthcr|. The synonymy of the species has recently been worked out by BedotdgiG). It gives us an interesting insight into the variability of a .species, and throws a sharp light ui,on several of the. 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
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
