Page:The Eurypterida of New York Volume 1.pdf/230

 front of the head shield to that segment and then decreasing as gradually to the second postabdominal segment where a contraction to half the width takes place.

The carapace appears to have been subrectangular, rather short and broad; length to width in the approximate proportion of 3 : 5. The lateral

margins are slightly convergent, at least in the middle portion where they can be traced. The antelateral angles are somewhat abruptly rounded, the frontal margin transverse, slightly emarginate in the middle. At the postlateral angles the carapace is a little more broadened. The posterior margin is overlapped by the first tergite and not exposed. The eyes are seen as rather small and slight kidney-shaped depressions; the right eye