. Bulletin. Science; Natural history; Natural history. Figure 4. Right calcanea of members of the Piocyonidae. a, Procyon lotor; b, P. can- crivorus; c, Potos flavus; d, Bassaricyon gabbi; e. Nasua narica; f, N. nasua; g, Ailurus fulgens; h. Bassarisciis astutus. young), 259132, 259137, 271097 (USNM 271097 illustrated, Fig. 4a). Procyon cancrivorus—Crab-eating Raccoon Comparison and characteristics of Procyon can- crivorus have been made under Procyon lotor. The calcaneum of the crab-eating raccoon tends to be larger than that of the common raccoon but otherwise is not too different. Specimens
. Bulletin. Science; Natural history; Natural history. Figure 4. Right calcanea of members of the Piocyonidae. a, Procyon lotor; b, P. can- crivorus; c, Potos flavus; d, Bassaricyon gabbi; e. Nasua narica; f, N. nasua; g, Ailurus fulgens; h. Bassarisciis astutus. young), 259132, 259137, 271097 (USNM 271097 illustrated, Fig. 4a). Procyon cancrivorus—Crab-eating Raccoon Comparison and characteristics of Procyon can- crivorus have been made under Procyon lotor. The calcaneum of the crab-eating raccoon tends to be larger than that of the common raccoon but otherwise is not too different. Specimens examined: USNM 6949, 49718 (USNM 49718 illustrated, Fig. 4b). Potos flavus—Kinkajou In general, the posterior articular surface of the calcaneum of Potos is long, narrow, and prac- tically in line or parallel with the body leading to the calcaneal tuberosity (Fig. 4c). In all other procyonids, this surface tends to be broader and at more of an angle to the body of the bone. The trochlear process is located proximally in Potos near the distal edge of the posterior artic- ular surface. In some specimens this process is poorly developed and virtually absent. Differences between the bones of Procyon and Potos have been discussed. The extreme dorsal turning of the cuboid surface and the formation of a tear-shaped medial articular sur- face which is wider than long, separate Potos from the remaining procyonids. The procyonid most closely resembling Potos in general features of the calcaneum is Bas- saricyon (Fig. 4d). The difference listed above, as well as overall size (Table 3), will distinguish the two easily. Specimens examined: AMNH 14073, 35192. 35352, 35434-5, 35766, 35916 (yg), 42302,. 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 Southern California Academy of Sciences. Los Angeles, Calif. : The Ac
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