. Bulletin - United States National Museum. Science. CATFISH GENUS NOTURUS RAFESTESQUE 51 7â^17â:â-T^-rââ -, 7 ;; T^'- ..^t . >â. ' f^=«&iv r^*'-". '"^ I?M ,t'^ â¢1 9 Noturus gyrinus O Noturus lochneri Map 1.âDistribution of Noturus gyrinus (Mitchill) and Noturus lachneri, new species. The symbols represent localities from which specimens have been examined. The dashed lines outline the known and hypothetical range of Noturus gyrinus. One line, extending from Texas to Saskatchewan eastward to Quebec and New York, bounds its general range. A second line surrounds the upland re
. Bulletin - United States National Museum. Science. CATFISH GENUS NOTURUS RAFESTESQUE 51 7â^17â:â-T^-rââ -, 7 ;; T^'- ..^t . >â. ' f^=«&iv r^*'-". '"^ I?M ,t'^ â¢1 9 Noturus gyrinus O Noturus lochneri Map 1.âDistribution of Noturus gyrinus (Mitchill) and Noturus lachneri, new species. The symbols represent localities from which specimens have been examined. The dashed lines outline the known and hypothetical range of Noturus gyrinus. One line, extending from Texas to Saskatchewan eastward to Quebec and New York, bounds its general range. A second line surrounds the upland region of the eastern United States, an area from which the gyrinus is not known. All unverified literature records that seem to be based on gyrinus are from localities within the range as outlined. N. gyrinus has been introduced into at least two places in New England (shown here), into the Snake River basin of Idaho and Oregon, and into Europe. from the Hudson River, New York, to the tip of peninsular Florida. On the Gulf coast, it is found mostly below a similar line and ranges westward to the Balcones Escarpment and the Nueces River, Texas. A^. gyrinus is found throughout much of the lower Red River system, upstream at least to Lake Altus, southwestern Oklahoma (personal communication from Dr. George A. Moore). The single specimen from a lake near Poteau, Oklahoma, in the Arkansas basin, may be the result of an introduction. From the lower Mississippi Valley,. 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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