. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 230 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY low down on tail, beginning about opposite tips of pelvics and extending nearly to first dorsal where it merges with a band of prickles; all the tail thorns pointing strongly rearward; a single thorn between dorsals. Upper surface of disc (including skin over eyes) covered with minute prickles except along posterior margins and on extreme tip of snout; pelvics naked ; tail prickly, everywhere except along the midzone; dorsals densely prickly. Lower surface of disc entirely
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 230 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY low down on tail, beginning about opposite tips of pelvics and extending nearly to first dorsal where it merges with a band of prickles; all the tail thorns pointing strongly rearward; a single thorn between dorsals. Upper surface of disc (including skin over eyes) covered with minute prickles except along posterior margins and on extreme tip of snout; pelvics naked ; tail prickly, everywhere except along the midzone; dorsals densely prickly. Lower surface of disc entirely smooth, but tail covered with minute prickles from about opposite tips of pelvics to opposite origin of second dorsal. Snout in front of orbits times as long as orbit, its length in front of mouth about times as great as distance between exposed nostrils. Distance between orbits times as great as. Figure 11. Cruriraja rugosa, ventral view of head, about x ; right- hand nostril and nasal curtain, about x 2. length of orbit. Orbit twice as long as spiracle. Nasal curtain with a very short, blunt fringe, expanded outer margins of nostrils smooth, Avithout fringes. Upper and lower jaws nearly short triangular cusp. Distance between first gill openings twice as great as distance between exposed nostrils; between fifth openings about times; first to fourth gill openings about times as long as fifth and about as long as breadth of mouth. First and second dorsals similar in shape the first slightly the larger. Interspace between dorsals times as long as base of first dorsal. Caudal fin very small. Anterior division of pelvics long and slender reaching. 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
