The Eurypterida of New York/Volume 2/Explanations of plates/Plate 64

by John Mason Clarke and Rudolf Ruedemann

PLATE 64

Hughmilleria shawangunk Clarke
Page 342
See plates 65, 66; plate 69, fig. 1

1	Youngest (nepionic) individual observed. Shows the large carapace, the immense compound eyes, the swimming legs and the incomplete number of segments. × 30
2	Very young (nepionic) individual showing the broad doublure, the prominence of the large compound eyes, the ocelli and the narrow tergites. The carapace is slightly shortened by compression. × 16
3	A like growth stage showing the ocellar mound. × 16
4–10	A series of carapaces of early growth stages showing the variation in outline and in the position of the eyes, largely due to different directions of compression. Figures 6, 8–10 show the intramarginal position of the eyes. Figure 4, × 6; figures 5 and 8, × 5; figures 6, 7, 9, 10, × 3
11, 12	Two carapaces showing the outline of the compound eye; figure 12 also shows that of the first tergite. Figure 11, × 5; figure 12, × 3
13	A young neanic individual (9 mm long) showing large eyes and complete number of segments in abdomen Horizon and locality. Shawangunk grit. Otisville, Orange co., N. Y.

Figures 1, 4, 7, 8 represent types [N. Y. State Mus. Bul. 107, pl. 4, fig. 2; pl. 5, fig. 5, 8, 9]. All originals are in the State Museum

Memoir 14. N.Y.State Museum.	Plate 64.
E.W.C.L. et G.S.B. del.	J.B.Lyon Co. State Printer.