The Eurypterida of New York/Volume 2/Explanations of plates/Plate 71


PLATE 71

Pterygotus macrophthalmus Hall
Page 350
See plates 69, 70

1 Complete fixed pincer or chela of chelicera. Natural size
2 Fragment of fixed pincer showing the teeth. Natural size
3 Part of ventral marginal shield and epistoma. × 2
4 Tergite. Natural size
Horizon and locality. Bertie waterlime. Cranes Corners, Herkimer co., N. Y.
5 Serrations of tooth of chela. × 3
Horizon and locality. Bertie waterlime. Jerusalem hill, Herkimer co., N. Y.
6 Ventral view. Hall's type of P. osborni. Shows the walking legs and metastoma. Natural size
Horizon and locality. Bertie waterlime. Waterville, Oneida co., N. Y.
7 Coxal joint of swimming leg. Natural size
Horizon and locality. Bertie waterlime. Litchfield, Herkimer co., N. Y.
8 Group of appendages showing a well preserved walking leg, a metastoma and coxal joint of swimming leg. Natural size
Horizon and locality. Bertie waterlime. Cranes Corners, Herkimer co., N. Y.
9 Fragment of integument showing the characteristic form of the scales. × 2
Horizon and locality. Bertie waterlime. Jerusalem hill, Herkimer co., N. Y.
10 Telson of a young individual. Natural size
Horizon and locality. Bertie waterlime. Cranes Corners, N. Y.

All figures are from photographs.

The originals of figures 1–5, 8–10 are in the State Museum; those of figures 6 and 7 in the American Museum of Natural History

Memoir 14. N.Y.State Museum. Plate 71.
J.A.Glenn phot. J.B.Lyon Co. State Printer.