Archive image from page 189 of The Danish Ingolf-expedition (1899-1953). The Danish Ingolf-expedition danishingolfex4apt1a2daniuoft Year: 1899-1953 176 ECHINOIDEA. I. ' — Tetiadactylons pedicellarige I have not found. The tridentate and triphyllous pedicellarise as in fenestratii)ii\ the large form of tridentate pedicellarise is found in ver\- different sizes, but also the small ones are of the typical structure, so that they cannot be confounded with the other form. Besides the forms of the second kind of tridentate pedicellariae mentioned and figured for /fiifsfrahim, a form is also fo
Archive image from page 189 of The Danish Ingolf-expedition (1899-1953). The Danish Ingolf-expedition danishingolfex4apt1a2daniuoft Year: 1899-1953 176 ECHINOIDEA. I. ' — Tetiadactylons pedicellarige I have not found. The tridentate and triphyllous pedicellarise as in fenestratii)ii\ the large form of tridentate pedicellarise is found in ver\- different sizes, but also the small ones are of the typical structure, so that they cannot be confounded with the other form. Besides the forms of the second kind of tridentate pedicellariae mentioned and figured for /fiifsfrahim, a form is also found here where the blade is not at all involved below (Fig. 10). I have, however, once foimd this form in A. fenestrafuw (in a specimen from Barbados, in British Museum), and so it can be no specific character. The spicules, perhaps, are a little smaller than \r\. fenestrabivi, but this difference is too little marked to be used as a specific character. The best character is the colour, which in the preserved specimens is deeply dark violet, while all the specimens oi fenestraf 11 ))i I have seen, are quite bleached in alcohol: also in the living animals the colour is quite different — comp. the description by Wyv. Thomson. The primary spines on the actinal .side are dark with a rather large, white hoof, very conspicuous on the dark ground-colour. — The organs of Stewart are ver}- large; the longitudinal muscles powerful. — For this species, the place of which is evidently between A. feiicstratiiiii and coriacettvi, I propose the name of Araeosonia violaceum n. sp. Echinosonia nraniis (p. 57). A couple of speci- mens of this species ((Talismans Sahara, 938 m.) I have seen in the museum of Paris. All the primary spines on the actinal side were broken, but some of the spines round the mouth had a little hoof; after this there can be no doubt that the primary spines on the actinal side end in a hoof as in E. tenue. The large tridentate pedicel- larise are quite similar to
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Keywords: 1800, 1890, 1899-1953, archive, arctic_regions, book, bookauthor, bookcentury, bookcollection, bookcontributor, bookdecade, bookpublisher, booksubject, bookyear, copenhagen_h_hagerup, danish_ingolf_expedition_1895_1896_, drawing, gerstein, gerstein_university_of_toronto, historical, history, illustration, image, k_benhavns_universitet_zoologisk_museum, marine_animals_arctic_regions, page, picture, print, reference, scientific_expeditions, toronto, vintage
