. The Eurypterida of New York. Eurypterida; Paleontology. 23© NEW YORK STATE MUSEUM of the eyes, and the subcirctilar outhne of the preabdomen. Laurie properly compares his Eurypterus scoticus with Eusarcus Scor- pio n i s Grote & Pitt. It has the outhne of body and the Hmbs of an Eusarcus. Further, the imperfectly known Eurypterus acro- c e p h a 1 u s Semper (1898), a Bohemian form, belongs here. Its subtri- angular carapace which gave the species its name and the broad, abruptly, contracted preabdomen warrant this reference and Semper has coiTectly \ Figure 52 Metastoma of Eusarcus punc
. The Eurypterida of New York. Eurypterida; Paleontology. 23© NEW YORK STATE MUSEUM of the eyes, and the subcirctilar outhne of the preabdomen. Laurie properly compares his Eurypterus scoticus with Eusarcus Scor- pio n i s Grote & Pitt. It has the outhne of body and the Hmbs of an Eusarcus. Further, the imperfectly known Eurypterus acro- c e p h a 1 u s Semper (1898), a Bohemian form, belongs here. Its subtri- angular carapace which gave the species its name and the broad, abruptly, contracted preabdomen warrant this reference and Semper has coiTectly \ Figure 52 Metastoma of Eusarcus punc- t a t u s Salter. Nat- ural size. (From Wood- wa rd). Figure 53 Eusarcus obesus (I-I. Woodward). Natural size. (From Woodward) pointed out the similarity of its species to E. scorpionis and E. scorpioides. Finally the Stylo nurus (?) simon- s o n i Schmidt is distinctly an Eusarcus, as we have set forth in the appended footnote.' ' This species was originally described as Eurypterus simonsoni and later referred with doubt to Stylonurus, the author stating that he believes the form to represent a new genus closely related to Stylonurus. The latter reference is based on the surface sculpture and the similarity of a detached part to the long last leg of Styl- onurus. The specimen shows the metastoma which, as Schmidt remarks, differs from all other metastomas. In its triangular, pear-shaped outline it agrees completely with that of Eusarcus. The sculpture, also, consisting of disklike prominences with raised. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Clarke, John Mason, 1857-1925; Ruedemann, Rudolf, 1864-1956. Albany, New York State Education Department
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Keywords: ., bookcentury1900, bookdecad, booksubjectpaleontology, bookyear1912
