. Carnegie Institution of Washington publication. DEVONIAN CHIM^ROIDS. 135 and upon a closer examination of these remains, I was more than ever convinced that they could not be associated with a Chimaeroid. In the first place, in well- preserved specimens the striae are sometimes continued longitudinally above the "rib sockets," showing, in other words, that they were absolutely unlike vertebral centra. {Cf. fig. 114, /.) Furthermore, and this is, I believe, most convincing, several of the fossils showed a delicate flaring out at one end, like the mouth of a trumpet, which at once su
. Carnegie Institution of Washington publication. DEVONIAN CHIM^ROIDS. 135 and upon a closer examination of these remains, I was more than ever convinced that they could not be associated with a Chimaeroid. In the first place, in well- preserved specimens the striae are sometimes continued longitudinally above the "rib sockets," showing, in other words, that they were absolutely unlike vertebral centra. {Cf. fig. 114, /.) Furthermore, and this is, I believe, most convincing, several of the fossils showed a delicate flaring out at one end, like the mouth of a trumpet, which at once suggested the lip of a molluscan shell; a character in any event distinctly non-vertebrate, not to say un-Chima^roid. I am also permitted to state that it was the view of Professor Cope, to whom my specimens were shown, that the "columns" could have nothing to do with vertebrates. It is probable, on the other hand, that they represent fragments of the shells of mollusks, possibly Cephalopods.* 113 :^V??:^y^. Figs. 113 and 114.—"Vertebral columns" ot "Silurian Chimaeroid," Dictyorhabdus priscus Walcott. The first figure after Walcott. ', oblique lamiDae in (he structure of the fossil, suggesting lines of 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 Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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