. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. / Textfig. 38. /. Psolus fabricii, "Ingolf", St. 32, specimen 4 mm long. 7. 2, Psolus phantapus, Hellebaek, specimen mm long. X 20. the young of a Psolus which has more than five oral shields, and on account of the locality there may be little doubt that they are young of P. fabricii or P. phantapus. As there are from the same station a number of small Psolus which, on account of the shape of the calcareous deposits, an- all referable to , and pecimens differ sligh
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. / Textfig. 38. /. Psolus fabricii, "Ingolf", St. 32, specimen 4 mm long. 7. 2, Psolus phantapus, Hellebaek, specimen mm long. X 20. the young of a Psolus which has more than five oral shields, and on account of the locality there may be little doubt that they are young of P. fabricii or P. phantapus. As there are from the same station a number of small Psolus which, on account of the shape of the calcareous deposits, an- all referable to , and pecimens differ slightly from them, the only possibility left is that these small specimens are P. fabricii. In any case these specimens indicate that P. hypsinotus cannot be regarded Localities: 64°24' N. 28°50' W. 1484 m, 3°.5 C, "Ingolf" St. 10 .. 1 spec. 63°30' N. 54°25' W. 1096 m, 3°.3 C, "Ingolf" St. 25 ... 3 61°32'N. 11°36'W. 1356 m, 2°.4 C, "Ingolf" St. 46 ... 1 62°06' N. 19°00' W. 1960 m, 3°.l C, "Ingolf" St. 64 . . 7 61°33' N. 19°00' W. 2051 m, 3°.0 C, "Ingolf" St. 65 .. 55 These specimens agree fairly well with Theel's description of P. pourtalesii as well as with 's redescription of 1930. There are, however, some minute differences on account of which I do not consider it correct to refer them to poutalesii sens, strict. In the Holothurians of the Atlantic Ocean p. 188, Deichmann states that the large tube-feet in pourtalesii are placed in zigzag. This agrees fairly well with a specimen in the Zoological Museum, received from the Smithsonian Institution, and determinated by Deichmann herself, but, in all the specimens from the "Ingolf" collections, the large tube-feet are all placed in a single row, which also is surprisingly regular. Further Deichmann states that the calcareous deposits of the sole are "usually completely smooth". In the "Ingolf" specimens nearly all the deposits ar
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
