. -^ m^ I Fig. 2. Promachocrimis keiguelemis. a, radials, costals, axillaries and lower brachials of specimens of different ages; the numbers beside the figures are those of the segments in the longest peripheral cirrus of each specimen; i and 2, x 13; 3 and 4, xy. b, fourth to fifteenth brachials showing the dorsal surfaces raised into spinous patches, x 11. c, largest side-plates found in the distal pinnules of specimens from the South Sandwich Islands, X47.

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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti