. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. 54 HYDROIDA II side. The apophyses have each an unbranched hydrocladium, divided by transverse joints into segments with numerous hydrothecae. Each, or more rarely, every alternate internodium on the hydrocladium has on its distal half a hydrotheca entirely fused down its one side with the inter- 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 Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. 54 HYDROIDA II side. The apophyses have each an unbranched hydrocladium, divided by transverse joints into segments with numerous hydrothecae. Each, or more rarely, every alternate internodium on the hydrocladium has on its distal half a hydrotheca entirely fused down its one side with the inter- 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 L/2 and '/s of that of the internodium. The gonothecae are situated on the stem or on the basal parts of the hydrocladia, without. 2 00 m. 6oo»> ,1000m. looom. Fig. XXIII. The distribution of Kirchenpaueria pinnata in the Northern Atlantic. In the hatched regions a common occurrence is stated by the literature. special protective organs. They are oval to pear-shaped, smooth or spiny, often much flattened from the side. Forma typica. Short internodia with hydrothecae in length from '/, to 72 the internodium. Forma elegantula (G. O. Sars) slender internodia with small hydrotheca;, length as a rule from J/s to 78 of the internodium. Material (forma typica): Greenland? (without further details). The Faroe Islands: (without further details) [= Plumularia echinulata Winther|. The synonymy of the species has recently been worked out by Bedot(). It gives us an interesting insight into the variability of a species, and throws a sharp light upon 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 Ingolf (Cruiser); Danish Ingolf-Expedition (1895-1896). Copenhagen : H. Hagerup
Size: 2065px × 1210px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectscientificexpedition
