The Eurypterida of New York/Volume 2/Explanations of plates/Plate 78

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PLATE 78

Pterygotus buffaloensis Pohlmann
Page 358
See plates 57, 67, 68, 72–77, 79–80

1 Metastoma showing the ornamentation. Natural size
2 Swimming leg. Pohlman's type of P. buffaloensis. Natural size
3 Interior view of ventral side. Shows doublure of metastoma with edge of connecting membrane (as dark concentric ring), which held it in place, operculum with male genital appendage (sagittate plate between metastoma and chelicera) and the two chelicerae, each bent at the first articulation and indicating the possible amount of reflexion. Natural size
4 Endostoma (plate chiseled out in middle of metastoma) which was attached to a metastoma and has become reversed. Natural size
Horizon and locality. Bertie waterlime. Buffalo, N. Y.

All figures are from photographs.

Originals of figures 1 and 4 are in the State Museum; those of figures 2 and 3 are in the museum of the Buffalo Society of Natural Sciences

Memoir 14. N.Y.State Museum. Plate 78.
The Eurypterida of New York plate 78.jpg
J.A.Glenn phot. J.B.Lyon Co. State Printer.