. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. HVDROIDA II 29 Gen. Cuspidella Hincks. Stolonial colonies, with stalkless, sessile tubular hydrothecte. The closing apparatus is formed by an integrating distal portion of the hydrothecae, which folds conically over the indrawn polyp; there is no distinct limitation between the closing apparatus and the remainder of the hydrotheca. Nematothecse lacking. Cuspidella humilis Hincks. 1863 Campanularia humilis, Hincks, M. S., Alder, Supplement to a Catalogue of the Zoophytes, p. 239. 1866 Cuspidella humilis, Hincks, On new Britis
. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. HVDROIDA II 29 Gen. Cuspidella Hincks. Stolonial colonies, with stalkless, sessile tubular hydrothecte. The closing apparatus is formed by an integrating distal portion of the hydrothecae, which folds conically over the indrawn polyp; there is no distinct limitation between the closing apparatus and the remainder of the hydrotheca. Nematothecse lacking. Cuspidella humilis Hincks. 1863 Campanularia humilis, Hincks, M. S., Alder, Supplement to a Catalogue of the Zoophytes, p. 239. 1866 Cuspidella humilis, Hincks, On new British Hydroida, p. 298. Creeping colonies with cylindrical or slightly downward tapering hydrothecse, passing over without stalk into the stolons. The hydrothecse are set perpendicularly on the stolons, and are short, with a closing apparatus in which 10—12 segments can be distinguished. The gonothecse are set on the stolons, and are of the same shape and appearance as the hydro- thecse, but much larger. The gonophores develope into free medusae. Material: "Thor" 64°i6' N., 22°i7' W., depth 50 metres Reykjavik, from the bottom of a well-boat This unpretending little species seems to have a fairly wide distribution, and has been met with from the Siberian Frozen Sea down to the Cape Verde Islands. Nevertheless, the few finds lie very wide apart, probably owing to the fact that the species, from its insignificant size, easily escapes observation. Its principal bathymetrical occurrence lies in the middle portion of the littoral region. Gen. Lafoeina M. Sars. Stolonial colonies with stalkless, sessile hydrothecse and nematothecse. The closing apparatus of the hydrotheca is formed by the integrating folding part of the hydrotheca, and passes over without distinct limitation into the same; it closes conically over the indrawn polyp. The nematotheca has a distal laterally situated aperture. Hadzi points out in a letter that there are possibly two genera concealed under this
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