. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. 134 HYDROIDA II Iceland: Adalvig (depth not stated). Kara Sea: "Dijmphna". Sertularia ii/inibilis is a circumpolar arctic species, belonging to the upper and middle parts of the littoral region. This being the case, it is remarkable to find it, west of the Faroe Islands, in the abyssal region, as taken by the "Thor" (fig. LXXII). Within the waters investigated, Scrfularia mirabilis is a species of rare occurrence, otherwise found once at the north-west point of Iceland,
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. 134 HYDROIDA II Iceland: Adalvig (depth not stated). Kara Sea: "Dijmphna". Sertularia ii/inibilis is a circumpolar arctic species, belonging to the upper and middle parts of the littoral region. This being the case, it is remarkable to find it, west of the Faroe Islands, in the abyssal region, as taken by the "Thor" (fig. LXXII). Within the waters investigated, Scrfularia mirabilis is a species of rare occurrence, otherwise found once at the north-west point of Iceland, and high np in Davis Strait off the west coast of 200 RJ. boom. . looo m, . Fig. LXXII. Finds of Sci tiilaria mirabilis in the Northern .\tlantic. Gen. Hydrallmania (Hincks). Upright colonics with bilateral sessile to slightly imbedded hydrothecae. The hydrotheca aper- ture is furnished with two lateral teeth, between which there is a smaller abcauline and a larger ad- cauline sinus; median teeth lacking. In each of the two sinuses there is fastened a membrane, so that the closing apparatus consists of two membranes, the adcauline with a free distal part. The polyp has a well developed abcauline blind sack. The diagnosis as given coincides with Levinsen's definition (1913 p. 305); we have here merely added the structure of the polyj) body. — Levinsen points out that it may be considered doubtful whether a separation between IlydralliiKDiia and Srrf/tlaria really is altogether jnstified, and the observations noted in the following may to a certain degree serve to accentuate the dubiousness. 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
