. Annual report. New York State Museum; Science; Science. DEVONIC FISHES OF THE NEW YORK FORMATIONS I4I of but slight movement between the parts. In the type species at least, the antero- and postero-dorsolateral plates are completely fused, and are over- lapped to a relatively greater extent by the dorsomedian than in Dinichthys. Particular attention is claimed by the last named plate, for the reason that its relations have not been clearly understood. It would appear that our only knowledge of the dorsomedian in Titanichthys is confined to a single specimen, identified by Newberry as belongi
. Annual report. New York State Museum; Science; Science. DEVONIC FISHES OF THE NEW YORK FORMATIONS I4I of but slight movement between the parts. In the type species at least, the antero- and postero-dorsolateral plates are completely fused, and are over- lapped to a relatively greater extent by the dorsomedian than in Dinichthys. Particular attention is claimed by the last named plate, for the reason that its relations have not been clearly understood. It would appear that our only knowledge of the dorsomedian in Titanichthys is confined to a single specimen, identified by Newberry as belonging to T. clarki, but wrongly referred by him to the "underside of the body or ;' A figure of it is. :. 27 Dorsomedian pi: . 28 Clavicular of T given, with the posterior margin uppermost, in plate 3, figure i of New- berry' s monograph, and its outlines are reproduced in the accompany- ing text figure 27. The original is now preserved in the Americar Museum of Natural History in New York, after having remained for some time inaccessible in the collections of Columbia University. Newberry's failure to recognize this plate as a dorsomedian is probably to be explained by the fact that its visceral aspect is embedded in the matrix, thus conceal- ing the characteristic longitudinal keel. That the latter was present, how- ' U. S. Geol. Sur. Monogr. 1889. 16: 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 New York State Museum. Albany : University of the State of New York
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