. Bulletin - United States National Museum. Science. 122 BULLETIN 17 7, UNITED STATES NATIONAL MUSEUM formed by a dark blotch and a pair of white spots well defined on the shoulders of the immature and feebly developed in the adult female. Streaks on the sides of the head and occiput region of the immature and of most females. "Detailed Description.—Type: No. 51488, adult male. Collected on Alta Vela Island, D. R., October 9-10, 1932, by W. G. Hassler. "Snout a trifle less than twice as long as greatest diameter of the eye; distance from tip of snout to center of eye greater
. Bulletin - United States National Museum. Science. 122 BULLETIN 17 7, UNITED STATES NATIONAL MUSEUM formed by a dark blotch and a pair of white spots well defined on the shoulders of the immature and feebly developed in the adult female. Streaks on the sides of the head and occiput region of the immature and of most females. "Detailed Description.—Type: No. 51488, adult male. Collected on Alta Vela Island, D. R., October 9-10, 1932, by W. G. Hassler. "Snout a trifle less than twice as long as greatest diameter of the eye; distance from tip of snout to center of eye greater than distance from eye to ear opening; rostral plate rounded but with a distinct lateral ridge or can thus; rostral with a single median cleft behind; nostril surrounded by the rostral, first supralabial, supranasal, and two other scales of which the more ventral is only about one-tenth as large as the more dorsal. A single scale separating the supranasals in the midline a trifle larger than the scales immediately posterior to it; three enlarged supralabials followed by three much smaller suboculars; the posterior supralabial not reaching the center of the eye. A cluster of three or four scales on the superciliary margin directly over the dorsal anterior border of the eye distinctly larger than the superciliary scales pos- terior to them, one of the scales in the group forming an outwardly directed spine; scales on the upper surface of the head posterior to the supranasals keeled, except for two or three scales on the most anterior row; scales between the anterior half of the orbits slightly longer than those on the snout, but only a half or two-thirds as broad; scales on the upper surface of the head behind the orbits diminishing rapidly in size to form a series of very small scales on the greater part of the occiput. Six scales in a line between supra- nasals and a groove forming the anterior border of the orbit; seven- teen scales in a row across the snout Figure 41.—Sp
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
