. Cave vertebrates of America; a study in degenerative evolution. Cave animals; Heteropygii. 50 BLIND VERTEBRATES AND THEIR EYES. Measurements {in microns) of eyes of Rhineura. Length of specimen. Meuio-lateoal diameter. Anteroposterior diameter. Distance from surface. Left eye. Right eye. Left eye. Right eye. Left eye. Right eye. mm. 275 280 3IQ 320 312 320 320 298 320 128 160 216 176 181 176 480 320 560 336 368 560 MINUTE ANATOMY OF THE EYE OF RHINEURA. All the structures vary greatly in different eyes so that the terms "sometimes," "usually," "frequently," etc.
. Cave vertebrates of America; a study in degenerative evolution. Cave animals; Heteropygii. 50 BLIND VERTEBRATES AND THEIR EYES. Measurements {in microns) of eyes of Rhineura. Length of specimen. Meuio-lateoal diameter. Anteroposterior diameter. Distance from surface. Left eye. Right eye. Left eye. Right eye. Left eye. Right eye. mm. 275 280 3IQ 320 312 320 320 298 320 128 160 216 176 181 176 480 320 560 336 368 560 MINUTE ANATOMY OF THE EYE OF RHINEURA. All the structures vary greatly in different eyes so that the terms "sometimes," "usually," "frequently," etc., have to be used much more than is desirable. This can not be avoided unless each eye is given a distinct description. A -A. (a) Sagittal Section through Middle of Left Eye of Rhineura, about 300 mm. Ion?. (b) Vertical Section through Distal Part of Eye of Rhineura, showing Lens with Capsule. (c) Lens of Right Eye of Individu; ' Left Lens of Same Individual. (c) Lens of Right Eye of Individual, 275 mm. long. Horizontal Section. (d) Le" ". 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 Eigenmann, Carl H. , 1863-1927. Washington, D. C. , Carnegie Institution of Washington
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