. Natural history. Geology; Zoology; Botany. 2 W. T. CALMAN. serrated on its lower edge. Antennules with the inner ramus of considerable size, longer than the first segment of outer ramus. Uropods a little longer than the last two somites together, peduncle shorter than the subequal rami and having five spines on its inner edge. Endopod with ten spines on its inner edge, without setae on its outer edge, the proximal segment twice the length of the Fig. 1.—Leucon australis, adult female, fbom the side, appendages omitted. Occurrence.—, June 15, 1902. D-net. Remarks.—Among the thirt


. Natural history. Geology; Zoology; Botany. 2 W. T. CALMAN. serrated on its lower edge. Antennules with the inner ramus of considerable size, longer than the first segment of outer ramus. Uropods a little longer than the last two somites together, peduncle shorter than the subequal rami and having five spines on its inner edge. Endopod with ten spines on its inner edge, without setae on its outer edge, the proximal segment twice the length of the Fig. 1.—Leucon australis, adult female, fbom the side, appendages omitted. Occurrence.—, June 15, 1902. D-net. Remarks.—Among the thirteen species at present referred to the genus Leucon, four have the inner ramus of the antennule of considerable size, at least equal in length to the first segment of the outer. Of these, L. longirostris,'" Sars, L. tenuirostris, Sars, and L. siphonatus, Caiman, have the antennal notch narrow and tlie. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original National Antarctic Expedition, 1907-1904; Fletcher, Lazarus, Sir 1854-1921; Bell, F. J. (Francis Jeffrey), 1855-1924; British Museum (Natural History). London, Printed by order of the Trustees of the British Museum


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