. Bulletin - United States National Museum. Science. 70 BULLETIN 189, UNITED STATES NATIONAL MUSEUM except on the spearlike tip; snout somewhat exserted, pointed, its length anterior to eye , in length anterior to axil of pectoral, its preoral length , ; interorbital , ; internarial space , ; eye and spiracle about equal, , in snout; mouth transverse, its width , in length anterior to axil of pectoral; teeth with small sharp cusps; disk smooth except for a patch of prickles on the snout, and some dorsal spines; the larger specimen (type) with an almost
. Bulletin - United States National Museum. Science. 70 BULLETIN 189, UNITED STATES NATIONAL MUSEUM except on the spearlike tip; snout somewhat exserted, pointed, its length anterior to eye , in length anterior to axil of pectoral, its preoral length , ; interorbital , ; internarial space , ; eye and spiracle about equal, , in snout; mouth transverse, its width , in length anterior to axil of pectoral; teeth with small sharp cusps; disk smooth except for a patch of prickles on the snout, and some dorsal spines; the larger specimen (type) with an almost continuous median series of spines from nuchal region to caudal ^ ^^^^-.:. *â ' /'' â -:|IA ^#.... /- i' ''':W'. Figure IS.âUrotrygon peruanus, new species. From the type, 276 mm. long, Paita Bay, Peru ( No. 127793). Insert, diagram of outline of snout and position of mouth and nostrils. spine; the smaller specimen (paratype) with a median series of smaller spines on tail only; ventral very broadly rounded, its outer (lateral) margin , in length anterior to axil of pectoral; claspers short, stout, scarcely as long as the outer margin of ventral. Color of the large specimen at hand nearly plain grayish brown above, with few very small scattered dark spots; pale underneath; a smaller specimen more grayish, with rather numerous dark spots; a very small specimen plain 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
