. The Danish Ingolf-expedition. Marine animals; Marine animals; Hydrography; Hydrography; Scientific expeditions. 4. Fig. XXXIV. Polynemertesia gracillima from the Davis Strait also an ""Paired mobile sarcotheca [type specimen of Plumularia groenlandica\ a. Internodium of the distallv ill the median line The stem with primary apophyse. b. Second internode of a prim- ary hydrocladium with secondary apophyse, showing a distinct apophyse bears a Secondarily brail- "mamelon". c. Hvdrothecate internode. (X So)- 1 1 1 j 1 j- .. ,1 , died hydrocladium; the hydrocla- dium is divide
. The Danish Ingolf-expedition. Marine animals; Marine animals; Hydrography; Hydrography; Scientific expeditions. 4. Fig. XXXIV. Polynemertesia gracillima from the Davis Strait also an ""Paired mobile sarcotheca [type specimen of Plumularia groenlandica\ a. Internodium of the distallv ill the median line The stem with primary apophyse. b. Second internode of a prim- ary hydrocladium with secondary apophyse, showing a distinct apophyse bears a Secondarily brail- "mamelon". c. Hvdrothecate internode. (X So)- 1 1 1 j 1 j- .. ,1 , died hydrocladium; the hydrocla- dium is divided by transverse nodes into irregular internodia, of which every alternate one bears two unpaired sarcotheca; in the median line, every other a median hydrotheca, a supracalycine pair of sar- cotheca: at the opening of the same, and an unpaired proximal, and as a rule an unpaired distal sarco- theca in the median line; on the distal parts of the hydrocladia the hydrothecaless internodium often melts into the hydrotheca-bearing internodium. The basal internodium of the hydrocladium is hydro- theca-bearing; the following small internodium is furnished at the middle with an apophyse directed obliquely forward and bearing the secondary hydrocladium; from the second segment of the latter there proceeds as a rule a further hydrocladium in the same manner; these secondary (tertiary) apophyses also are provided with a "mamelon" and two mobile sarcothecae, as in the case of the primary apo- physe. The secondary hydrocladia are of the same structure as the primary. The hydrothecse are small, with slightly outward curving opening margin, and are throughout their entire length fused with 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; Wandel, C. F. (Carl Fr
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectmarineanimals
