Plate I. Categories of the supra-sesamoid tubercle on ranch mink femurs. 1-ABSENT: Chalky and spongy aspect at site of tubercle. Entire width of caudal epiphysis appears porous (not homogeneous). Tubercle area conforms to line of shaft. 2.-SMALL: Tubercle area has slight concentration from additional deposits. Caudal epiphysis losing porous appearance at extreme sides. Slight elevation of tubercle. 3-MEDIUM: Tubercle area has noticeable deposit. Occasional porous aspect at center of caudal epiphysis. Marked elevation of tubercle. 4-LARGE: Definite, distinct tubercle. Disappearance of porous caudal epiphysis. Definite elevation of tubercle. Plate II. Top: Sutures discernable in ranch mink skulls (approximately 8 mos. old). Left-nasal-premaxillary, maxillary, frontal suture. Center-jugal-zygomatic process of squamosal suture. Right-mastoid-exoccipital suture. Middle: Pelvic girdle of juvenile male ranch mink with smooth conformation of edge of ischium. Bottom: Adult male pelvic girdle with additional deposits on edge of ischium.
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