Page:The Eurypterida of New York Volume 1.pdf/286

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280
NEW YORK STATE MUSEUM

specimen
Figure 62 Stylonurus elegans Laurie. Second to fourth legs of right side. (From Laurie)
of S. cestrotus which retains both in full length, distinctly shows that there was a considerable difference in the two pairs, the fourth being shorter in total length by about one sixth, and each of its segments a little shorter than the corresponding one of the fifth [pl. 49, fig. 6]. In S. elegans Laurie, where the last two pairs are also shown, this difference is still greater [text fig. 62][1] and the same is suggested by Laurie's drawing of S. macrophthalmus [1892, pl. 2, fig. 10]. It would seem then that all specimens of Stylonurus, except the original S. powriei, exhibit a distinct difference in length between the last two pairs of legs. From the two figures of S. powriei, published successively by Woodward [1865, pl. 13, fig. 1; 1872, pl. 21, fig. 1], it also becomes obvious that that specimen must possess the same dif-


  1. See also Laurie, 1899, pl. 2, fig. 12, 13