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-
- ↑ See also Laurie, 1899, pl. 2, fig. 12, 13