. Annual report. New York State Museum; Science; Science. DEVONIC FISHES OF THE NEW YORK FORMATIONS 87 open for a considerable extent posteriorly. The longitudinal mesial line of the anterior face, except near the unworn apex, defined only by the superficial ornament, which consists of par- allel, oblique, transverse, ridges, diverging in pairs from this line and inclined towards the inserted extremity ; posterior face with a nar- row unornamented area, sometimes bounded by a series of denticles on one side ; unworn apex also destitute of ornament. Gyracanthus sherwoodi Newberry Plate 3, figur
. Annual report. New York State Museum; Science; Science. DEVONIC FISHES OF THE NEW YORK FORMATIONS 87 open for a considerable extent posteriorly. The longitudinal mesial line of the anterior face, except near the unworn apex, defined only by the superficial ornament, which consists of par- allel, oblique, transverse, ridges, diverging in pairs from this line and inclined towards the inserted extremity ; posterior face with a nar- row unornamented area, sometimes bounded by a series of denticles on one side ; unworn apex also destitute of ornament. Gyracanthus sherwoodi Newberry Plate 3, figure 7 1889 G y r a c a n t li u s s h e r w o o d i y. ^. ^V(7i'- berry. U. S. Geol. Sur. Monogr. i6: 119, pi. 18, fig. | Fin spines attaining a length of about 15 cm, laterally much compressed, gentl) arched and gradually tapering toward the apex ; internal cavity open as a narrow groow for a considerable distance posteriorly ; sides ornamented with numerous fine, parallel curved ridges, either irregularly pectinated or faintly nodose. The only examples hitherto known of this species are those described by Newberry from a single boulder thought by him to have been derived from the Catskill of Tioga county, Pennsylvania. A few fragmentary spines displaying the same ornamentation and agreeing in form with Newberry's originals have been obtained from the Chemung group .^ near Warren, in the same state, one or two Gyracanthidcs murrayi a. s. Woodward. Restored drawing of fossil, much beingf preserved in the Museum of Compara- reduced, head and abdominal region seen from ^ ^ _ ^ below, tail twisted to exhibit side view (After tive Zoology at Cambridge, Mass. Several smith woodward) specimens from the Chemung of southern New York are also preserved in the State Museum at Albany. One particularly fine impression, shown in. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of thes
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