. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. HYDROIDA II ,y Material: "Ingolf" St. 7, 63° 13' N., i5°4i' W., depth 600 fatlioms, 4,5° - - 9, 64°i8' N., 27^00' W., - 295 - 5,8° - 54, 63'>o8' N., 15-40' VV, - 691 - 3,9° "Thor" 63-30' N., 20°i4' W., â 80 metres â [labelled Halecium halecinum^ H. Beaiiii and //. lubrosu7n\ Greenland: Cape Tobin, depth 57 fathoms (East Greenland Expedition). Iceland: Vadlavik (depth not stated) Vestmano, depth 30â40 fathoms |labelled Halcciuin Jinlrciumn and //. Beanii] 10 mi
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. HYDROIDA II ,y Material: "Ingolf" St. 7, 63° 13' N., i5°4i' W., depth 600 fatlioms, 4,5° - - 9, 64°i8' N., 27^00' W., - 295 - 5,8° - 54, 63'>o8' N., 15-40' VV, - 691 - 3,9° "Thor" 63-30' N., 20°i4' W., â 80 metres â [labelled Halecium halecinum^ H. Beaiiii and //. lubrosu7n\ Greenland: Cape Tobin, depth 57 fathoms (East Greenland Expedition). Iceland: Vadlavik (depth not stated) Vestmano, depth 30â40 fathoms |labelled Halcciuin Jinlrciumn and //. Beanii] 10 miles W. of Akranes (depth not stated) [labelled Htilt- Braiiii]. Between Iceland and The Faroe Islands, depth 192 fathoms (without further details) The Faroe Islands: 6 miles N. by W. of Kalso, depth 60 fathoms Stokken 2 miles in , â 55 â Deep hole at north point of Nolso, depth 100 Glyversnses near Thorshavn, on red algae. Boronces 13 miles in , depth 30 fathoms. Halcciuin halcciuiiiii is generally of somewhat coarser build than Halecium Bcaiiii^ but a good deal finer than Halecium scutiiiii\ it is often extremely difficult to distinguish these species one from another, especially when the colonies assume an altogether irregular form, whicli the males in particular are inclined to do. The female gonotheca; in Halecium halecinuiii will, in their normal shape, with the quite terminal lateral opening, hardly be confused with normal individuals of the other species, but when, as not infrequently occnrs, the distal portion of the gonotheca is domed forward, so that the aperture is found somewhat below the point on one side of the gonotheca, the identity is bv no means eas\' to determine. True, Halcciuin scutum is in most mstances of far coarser build than the two others, but the variation in dim- ensions is within each of the three too great to permit the fixing of proper size Fig. XI. Hatecium hale- limits; they would be found to ove
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
