. Fig. 51. Mammary grooves, genital aperture, etc., of female Blue whales (semi-diagrammatic); to show variation of the extra grooves in this region, in, mammary grooves. 48 l+l 14-5 1+7 14-e 55 60 174 270 274 • • • ••

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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscientificexpedition