The Eurypterida of New York/Volume 2/Explanations of plates/Plate 13

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PLATE 13

Eurypterus sp.

1 Gill attached to sternite of an undetermined eurypterid, possibly E. maria. Shows fine anastomosing lines of the gill. × 3
Horizon and locality. Shawangunk grit. Otisville, N. Y.


Strabops thacheri Beecher
Page 152
See plates 1, 4

2 Drawing of counterpart of holotype from guttapercha squeeze. Natural size
Horizon and locality. Potosi (Cambric) limestone. St François co., Mo.


Eurypterus lacustris Harlan
Page 173
See plates 9–12

3 Adolescent specimen, showing well the general proportion of the parts in approximately original position. Natural size
Horizon and locality. Bertie waterlime. Buffalo, N. Y.


Eurypterus pittsfordensis Sarle
Page 196
See plates 14–18

4 Seventh and eighth segments of swimming leg, showing the formation of the slightly expanded blade, the subtriangular inner appendage ("guard") of the seventh, the incised margin of the eighth segment (palette) and the minute claw inserted in the same. × 2½. One of Sarle's cotypes
5 Carapace of young (adolescent) individual showing the broad frontal shoveling edge, the position of the lateral and median eyes and the posterior edge. Natural size
6 Upper view of appendages of cephalothorax. Shows one chelicera on left frontal side, two walking legs and the coxae of the swimming legs. One of Sarle's types [op. cit. pl. 10, fig. 7]; original drawing slightly corrected. Natural size
Horizon and locality. Pittsford shale. Pittsford, Monroe co., N. Y.

The original of figure 2 is in Columbia University, the others are in the State Museum

Memoir 14. N.Y.State Museum. Plate 13.
The Eurypterida of New York plate 13.jpg
G.S.Barkentin del. J.B.Lyon Co. State Printer.