. The Danish Ingolf-expedition. Marine animals; Marine animals; Hydrography; Hydrography; Scientific expeditions. 126 HYDROIDA II which is ellipsoidal in section. Even though this form may predominate in many colonies, it is nevertheless far from constant; a very high degree of variation may normally be observed even within a single colony (fig. LXV e—X'). We often find, on one and the same branch, gonothecce with two points, others with but one, and some with none at all. (This applies, of course, only to aeroeyst- bearing, i. e. fully developed, gouothecse; those shown were all provided with
. The Danish Ingolf-expedition. Marine animals; Marine animals; Hydrography; Hydrography; Scientific expeditions. 126 HYDROIDA II which is ellipsoidal in section. Even though this form may predominate in many colonies, it is nevertheless far from constant; a very high degree of variation may normally be observed even within a single colony (fig. LXV e—X'). We often find, on one and the same branch, gonothecce with two points, others with but one, and some with none at all. (This applies, of course, only to aeroeyst- bearing, i. e. fully developed, gouothecse; those shown were all provided with acrocysts.) Now while in some colonies the two-pointed gouothecse are numerically predominant, though it is extremely seldom that they are practically supreme, this "normal" form of gonotheca is in the minority- in other colonies, where on the contrary the great majority are of the one-pointed type; the entirely spineless. 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; Wandel, C. F. (Carl Frederik), 1843-1930; Ingolf (Ship). Copenhagen, H. Hagerup
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectmarineanimals
