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Excerpt from The Midland Naturalist, 1881, Vol. 4 Along the lower edge of the post-abdomen are four rows of curved spines, two on each side of the median line, the inner rows being rather smaller than the outer. All the rows converge posteriorly and meet at the point where the two post-abdominal setae (f) are situated. These last are excessively long, almost equalling the body in length, and are sparsely plumose along the distal half of their length. Posteriorly the post abdomen is provided with a rather blunt spine, (h, ) which serves to keep the eggs in the open space, (o, ) where they are carried by the female until hatched. I could not make out this spine very distinctly. The branchial legs, (plate I., p. 1 ten in number, are largely developed, the two lower pairs at least being expanded into great fan like paddles. Their surface is still further increased by very long delicately-plumose setse, which spring, apparently, from the fold of integument between the two terminal joints, and extend far beyond the edge of the paddle, often projecting as far as the ends of the setae which fringe the carapace. Indeed, the ends of these two sets of setse are so mixed up as to make it rather difficult to determine which are which. The intestinal canal presents no peculiarities, being almost straight. There were no ova in my specimen, and from this, its small size, and relative transparency, I concluded that it was immature. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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