. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. OP--. FIG. i. Outline of the canals of the inner ear of Diadectessp. From Cope, hap, horizontal antero-posterior canal; aa, anterior ampulla; vap, vertical antero-pos- terior canal; vl, vertical transverse canal; ap, posterior ampulla; cc, canalis com- munis of the vertical antero-posterior and the vertical transverse canals; , commune of the same. FIG. 2. Inner view of the right otic region of Edaphosaurus, showing the cavity of the ear. So, supraoccipital; op, opisthotic;/w, foramen magnum. X i. posterior canals of Co
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. OP--. FIG. i. Outline of the canals of the inner ear of Diadectessp. From Cope, hap, horizontal antero-posterior canal; aa, anterior ampulla; vap, vertical antero-pos- terior canal; vl, vertical transverse canal; ap, posterior ampulla; cc, canalis com- munis of the vertical antero-posterior and the vertical transverse canals; , commune of the same. FIG. 2. Inner view of the right otic region of Edaphosaurus, showing the cavity of the ear. So, supraoccipital; op, opisthotic;/w, foramen magnum. X i. posterior canals of Cope's figure. Where the two canals meet there is a projection upward and forward of the cavity which probably lodged a rudiment of the apex of the sinus utriculus superior (terminology of Retzius). At the outer ends of the canal there is evidence of slight enlargements which lodged the anterior and posterior ampullae. Just below the point of union of the two canals there is an elevation of the cavity indicating that the sinus utriculus posterior was inclined inward and forward. The cavity for the utriculus is relatively large and higher than wide. On the outer side of the broken surface of the cavity, nearly opposite the middle point there is a slight excavation indicating the position of the external canal. At the lower end of the cavity there are two extensions, one running into the paroc- cipital (opisthotic) bone and parallel to its axis, this lodged the. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
