Archive image from page 77 of The Danish Ingolf-Expedition (1907). The Danish Ingolf-Expedition danishingolfexpe0402ingo Year: 1907 Fig. 10. Analysis of Part of the test of Pouriatesia phialc. The plate marked x is probably part of 1. a. 3, abnormally separated off from the latter. Whether any of these plates should be interpreted as being compound (in the sense of Loven's He- teronomy) I do not venture to decide. The periproct is not sunken; it is surrounded by three epiproctal plates on each side, viz. 5. a. 6—8 and b. 7—9. The apical system (PI. VII. Fig. 7) is disconnected as in P. Jeffre


Archive image from page 77 of The Danish Ingolf-Expedition (1907). The Danish Ingolf-Expedition danishingolfexpe0402ingo Year: 1907 Fig. 10. Analysis of Part of the test of Pouriatesia phialc. The plate marked x is probably part of 1. a. 3, abnormally separated off from the latter. Whether any of these plates should be interpreted as being compound (in the sense of Loven's He- teronomy) I do not venture to decide. The periproct is not sunken; it is surrounded by three epiproctal plates on each side, viz. 5. a. 6—8 and b. 7—9. The apical system (PI. VII. Fig. 7) is disconnected as in P. Jeffreys; the genital openings are not developed in the specimens in hand. The primary tubercles are not serially arranged. — The description and figures of spines and pedicellariae will be given in the Report on the Echi- noidea of the German South Polar Expedition, founded on the single, very beautifully preserved specimen taken by that Expedition. The specimens from the Iugolf are smaller (8—13™™) and less well preserved, sufficiently well, however, to show that they agree in every respect so closely with that from the Antarctic Sea that it is quite out of the question to separate them as a distinct species. The question whether the antarctic species described in the Challenger -Report as P. phiale is really


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