. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. i6 CIRRIPEDIA AND COPEPODA are about mm in length, with a breadth of about — mm, and each contains numerous eggs. The egg-masses are so large that they can scarcely have existed at a time within the body of the female; some of them are no doubt older than the others, and in a few cases two of them had developed into nauplii of the usual shape (fig. 8, 5), about mm in length. Description of the adult, not ovigerous $ (fig. 9). Length up to a little more than 2 mm or mm
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. i6 CIRRIPEDIA AND COPEPODA are about mm in length, with a breadth of about — mm, and each contains numerous eggs. The egg-masses are so large that they can scarcely have existed at a time within the body of the female; some of them are no doubt older than the others, and in a few cases two of them had developed into nauplii of the usual shape (fig. 8, 5), about mm in length. Description of the adult, not ovigerous $ (fig. 9). Length up to a little more than 2 mm or mm. Upon the whole it is not very different from the ovigerous 9; but the body seems to be divided into 5 segments, and the abdomen is ordinarily turned a little forward. The abdomen is, however, not immediately visible, for it is concealed under the membrane which will later become the "brood-pouch". It was in this stage not possible to find the con- ical processes with sausage-shaped glands in the ovigerous stage. Descriptions of the two youngest specimens found (fig. 10). 1. The smaller specimen, about in length ("Rink" stat. 55; fig. co, 1—3). The body is somewhat ovular, with the anterior end the broader; un- fortunately, the specimen is somewhat damaged, as it is extremely fragile; and as moreover it is fairly pellucid, it was very difficult to have it dissected out of the host. No segmentation of the body could be stated. It is not very different from the adult, non-ovigerous female, and already in this stage most of the de- tails are recognisable: antenme 1—2, 4 pairs of the serpentine Kig. 9. Ophioicaf?) appendiculata n. sp. Adult, but not ovigeroi from the ventral side (i), the left side (2) and the dorsal side (3). the 'oral conus", and 2. A somewhat larger specimen, about mm in length ("Thor" stat. 167, 1905; fig. 10, 4—9). The most important differences between this and the youngest specimen menti
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
