The Eurypterida of New York/Volume 2/Explanations of plates/Plate 62

From Wikisource
Jump to navigation Jump to search


PLATE 62

Hughmilleria socialis Sarle
Page 335
See plates 59–61, 63

1 Swimming leg, disjointed, showing the form of the joints. × 2½
2 Complete swimming leg. × 3
3 Two coxal joints of swimming legs. Natural size
4 Two metastomas showing slight variation in form. Natural size
5 Coxal joint of fourth walking leg showing large perforation of unknown function
6 Coxal joint of walking leg. × 3
7 Female genital appendage of second sternite. Natural size
8 Female genital appendage of second sternite, showing its partial covering by opercular appendage. × 2½
9 Middle portion of operculum and second sternite, from within showing female genital appendages and partial covering of appendage of second sternite by opercular appendage. This second appendage should have been drawn into a more elongate tubular form. × 3½
10 Same as preceding from the outside, showing appendage of second sternite fully exposed. The longitudinal groove shown on this appendage is the result of pressure against the overlapped edges of the right and left halves of the sternite. × 3½
11 View of male operculum and second sternite showing fused parts of opercular appendage and lanceolate shape of appendage of second sternite seen from inside. × 2
Horizon and locality. Pittsford shale. Pittsford, N. Y.

The originals are all cotypes and are in the State Museum

Memoir 14. N.Y.State Museum. Plate 62.
The Eurypterida of New York plate 62.jpg
G.S.Barkentin del. J.B.Lyon Co. State Printer.