. The geology of Nova Scotia, New Brunswick, and Prince Edward Island, or, Acadian geology [microform]. Geology; Geology, Stratigraphic; Paleontology; Geology, Economic; Géologie; Géologie stratigraphique; Paléontologie; Géologie économique. NOTES AND ADDENDA. 101 • edges, and elabor- to tho teeth of the cr series, the latter Mice of being com- files smootli, with a the posterior edges pointed, and with a en hvrge oval scales d with waving lines, and serrate behind, ed, probably belongs. row are those on lippoi- lobe of tail, Ih is a perfect model eoniscids to which it iDr Traquair in the ll h
. The geology of Nova Scotia, New Brunswick, and Prince Edward Island, or, Acadian geology [microform]. Geology; Geology, Stratigraphic; Paleontology; Geology, Economic; Géologie; Géologie stratigraphique; Paléontologie; Géologie économique. NOTES AND ADDENDA. 101 • edges, and elabor- to tho teeth of the cr series, the latter Mice of being com- files smootli, with a the posterior edges pointed, and with a en hvrge oval scales d with waving lines, and serrate behind, ed, probably belongs. row are those on lippoi- lobe of tail, Ih is a perfect model eoniscids to which it iDr Traquair in the ll have given it the [the two next species, Itinctive marks. The scales have more lorly. The posterior |nd extends consider- Survey, indicates a Ibont G inches long. 1 differs in these from the last, but more Ithick and with few striae, and less numerous serrations. Dorsal scales pointed posteriorly. Anal fin somewhat remote from caudal and opposite dorsal. The next species, and perhaps the last, may belong to tlie genus Elonkldhys of Giebcl. Tliey are mucli larger than the preceding. P. {ElunicJithys) Drownii, Jackson, is deep in form, witli large dorsal and anal, the latter reaching almost to base of caudal. Scales of body broad and with numerous fine horizontal striato-punctate furrows, which turn abruptly upwards at the anterior side of each scale. A nearly perfect specimen, collected by Mr Ells, is 10 inches long and 3J inches wide, the breadtli at the dorsal fin being about etjual to tliat at the ."shoulder, andsuddenly dimi- nishing to the tail. The crystalline lens of the eye is preserved in this specimen in calcite, and shows its structure, which is on tlie same plan with that of our modern ganoid Amia ocelUcauda. It is the firstinstance known to me of the preservation of the structure of the eye of a Paheozoic fisii. P. Jac/csonii, s. N.—A species figured, but not described, by .Jackson, is represented by several fragments in my collection, and by a cast obt
Size: 1173px × 2129px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
