. Bulletin - United States National Museum. Science. 330 BULLETIN 58, UNITED STATES NATIONAL MUSEUM. instead there are numerous more or less complete narrow, dusky, transverse zigzag lines often with pale edges, or these cross lines are interrupted so as to form a lateral series of dots and a dorsal cross line, often (|uite oblif[ue; on the posterior half of the upper surface of the head there is a brown, black-edged pattern somewhat resem- bling an ornate M, and anterior to this a semilunar band across pre- frontals and supraoculars, as well as various marks of similar color on top and sides
. Bulletin - United States National Museum. Science. 330 BULLETIN 58, UNITED STATES NATIONAL MUSEUM. instead there are numerous more or less complete narrow, dusky, transverse zigzag lines often with pale edges, or these cross lines are interrupted so as to form a lateral series of dots and a dorsal cross line, often (|uite oblif[ue; on the posterior half of the upper surface of the head there is a brown, black-edged pattern somewhat resem- bling an ornate M, and anterior to this a semilunar band across pre- frontals and supraoculars, as well as various marks of similar color on top and sides of the snout and on the supralabials; a brown black- edge postocular band crossing the last supralabial; ventrals faintly marked with brownish except on lateral angle which is visible as a wliitish line. Variation.—The number of scale rows and of supralabials seem to be absolutely constant in this s]:)ecies, and only two aberrations with regard to the latter are on record, namely, two specimens examined by Doctor Wall, who in one found on one side three supralabials 283. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
