. Bulletin - United States National Museum. Science. 72 BULLETIN 189, UNITED STATES NATIONAL MUSEUM vent; eye notably smaller than spiracle, in snout; interorbital space flat to slightly concave, in snout, in length anterior to vent; space between spiracles notably narrower, in snout, in length anterior to vent; mouth transverse, its width in snout, in length anterior to vent; teeth small, pointed, in a narrow band in each jaw; ventral narrow, distally convex, its outer margin in length anterior to vent; clasper reaching about half its length beyond adjacent
. Bulletin - United States National Museum. Science. 72 BULLETIN 189, UNITED STATES NATIONAL MUSEUM vent; eye notably smaller than spiracle, in snout; interorbital space flat to slightly concave, in snout, in length anterior to vent; space between spiracles notably narrower, in snout, in length anterior to vent; mouth transverse, its width in snout, in length anterior to vent; teeth small, pointed, in a narrow band in each jaw; ventral narrow, distally convex, its outer margin in length anterior to vent; clasper reaching about half its length beyond adjacent part of ventral. Color of old preserved specimen brown above, "mingled olive green and olive brown" in life, with pale spots about as large as pupil rather widely scattered over the disk, each spot surrounded by a more or less definite dark ring; disk also with light and dark markings, these /^ -X â â â â â â¢...â y "â .'.â â â ./â s,}^-^^-^^"^. Figure 16.âPteroplatea afuerae, new species. From the type, 353 mm. long, Lobos de Afuera Island, Peru ( No. 77709). Insert, diagram of outline of snout and position of mouth and nostrils. most conspicuous on anterior part of disk; pale underneath;"posterior border of disk above of a dark reddish color * * *"; lower border of same color in life. Quotations are from Evermann and Radcliffe (see reference above). The description is based on a male, having a length of 353 mm. and a width of 500 mm. ( No. 77709), secured at Lobos de Afuera Island, Peru, by R. E. Coker. This is the specimen identified as P. crebripunctata Peters by Evermann and Radcliffe (see reference above). Upon comparing the Peruvian skate with two smaller specimens, 157 and 290 mm. wide, from Mazatldn, Mexico ( Nos. 47497 and 28298), identified as P. crebripunctata (=P. marmorata), it was. Please note that these images are extracted from scanned page images that may have been digitally enhanced for read
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
