. Fig. 25. Panulivus D, 57 mm. St. 1554. whether total length is taken or pre- or. post-labral length, showing that in these parti- cular stages (from 10-4 to 2275 mm.) irrere is no appreciable differential rate of growth. The fifty specimens measured fall into six groups of which the average sizes are: Average size (mm.) Growth factor 10-5 — 13-57 1-29 i6-5 1-22 20-8 1-26 28-6 1-36 35-0 1-23

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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti