| OCR Text |
Show 325 Measurement* of thirty- four skulls O/ LYNX KUFUS et vars. Catalogife-uumber. 6599 0600 3436 3197 3437 3436 2038 3147 9863 3775 7465 3120 2391 3574 3543 3541 3570 3576 1867 1109 7493 1376 1367 1368 1006 1159 m? 8 6031 6030 6216 6311 4468 4296 3979 2570 Locality. gtfljIq/ MMPm, Wft& hr r..,. T Fort Umpqua, Wash Shoalwater Bay, Wash Big Sioux River Mjfasiasippi F l o r i d a . . . Fort Tejon, Cal - do do do KaglA PfMHi, T e x a n . . . r T Washington Conn ty, Texas . . . . . . d o . do Tftxaa . . . . . . . , * . - , , 1 . - T - - . . . , - . . r Kioai, A l a s k a . . ."..'. YnV « n, Alaska . Peel River • do '. Fort Simpson Liard River Red River Settlement • Medicine Bow Creek, Wyoming ,,, , - , . „ . . , .. 1 .9 9 < f d i i J 4.80 4.65 aso a 45 4.90 4.75 aso aso 4.95 a io 4.85 4.90 4.80 4.80 4.93 4.65 4.65 5. IS a 37 4.73 4.55 5.10 4.80 a is 4.80 4.85 4.95 4.75 4.95 a 30 a is a oo 5.00 a is Width. a 45 a 30 3.60 a 95 ass aso ass' ass a 38 a 55 ass as? a 33 aso a 38 a 37 a37 a7s a si ass a io a 40 ass a 57 ass a 35 a 53 ass a 53 a 70 3.60 a 45 a 58 a 60 Remarks. "/ asdatui:' Do. Do. Very old Do. Do. Do. Do. Do. Very old. ,, r9£ W'" Very old. Do. Do. Quite young. Do. Do. Do. Do. Do*. Do. " macuUUus." Do. Do. Do. Rather young.. Do. Do. Do. Do. " canadensis." Do. Do. Do. Do. Do. Do. Do. Do. PROCYON LOTOR. The present species presents another well- marked case of gradual increase in size southward. In a series of fifteen skulls from the Atlantic States ( New York, Pennsylvania, and Georgia), only a single specimen, exceeds 4.38 in length or 3.00 in width, the largest specimen being from Saiut Simon's Island, Georgia. Three from Essex County, New York, average 4.28; five from Pennsylvania average 4.29; seven from Saint Simon's Island, Georgia, average 4.26 ( or 4.29, excluding one very small one). Six specimens from the interior ( Nebraska, Missouri, Indian Territory, and the Lower Rio Grande) average 4.49, two only falling below 4.50, and the largest ( Rio Grande) 4.70. Three from California (" hernan-dezi") average 4.63, the largest reaching 4.78, with a width of 3.38. Six from Southern Mexico average 4.58, the largest reaching 4.73 in length, with a width of 3.42. Three from Costa Rica average 4.69, the largest reaching 4.85. In addition to the above, there is a single very aged specimen from Detroit, Mich., which has a length of 4.35, and two others from Alaska ( one middle- aged, the other rather young) which measure, respectively, V25 and 4.05 in length, the latter being the smallest of the whole series, although it contains others equally young. Between the three specimens from Essex County, New York, and the three from Costa Rica, specimens of corresponding ages and constituting the two extremes, the average difference is nearly six- tenths ( 0.57) of an inch, or about one- seventh of the size of the northern examples. Besides the difference in size, there is also a considerable range of variation in respect to the general form of the skull in the ratio of width to length, in the shape, degree of concavity of the palate, in specimens |
